Yamaha CBX-D5 Руководство пользователя

CBX-D5

DIGITAL RECORDING PROCESSOR

Owner's Manual 2

OPERATING MANUAL

* This applies only to products distributed by YAMAHA CORPORATION OF AMERICA

FCC INFORMATION (U.S.A.)

1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT!

This product, when installed as indicated in the instructions contained in this manual, meets FCC requirements. Modiﬁcations not expressly approved by

Yamaha may void your authority, granted by the FCC, to use the product.

2. IMPORTANT: When connecting this product to accessories and/or another product use only high quality shielded cables. Cable/s supplied with this product

MUST be used. Follow all installation instructions. Failure to follow instructions could void your FCC authorization to use this product in the USA.

3. NOTE: This product has been tested and found to comply with the requirements listed in FCC Regulations, Part 15 for Class “B” digital devices. Compliance

with these requirements provides a reasonable level of assurance that your use of this product in a residential environment will not result in harmful interfer-

ence with other electronic devices. This equipment generates/uses radio frequencies and, if not installed and used according to the instructions found in the

users manual, may cause interference harmful to the operation of other electronic devices. Compliance with FCC regulations does not guarantee that interfer-

ence will not occur in all installations. If this product is found to be the source of interference, which can be determined by turning the unit “OFF” and “ON”,

please try to eliminate the problem by using one of the following measures:

Relocate either this product or the device that is being affected by the interference.

Utilize power outlets that are on different branch (circuit breaker or fuse) circuits or install AC line ﬁlter/s.

In the case of radio or TV interference, relocate/reorient the antenna. If the antenna lead-in is 300 ohm ribbon lead, change the lead-in to co-axial type cable.

If these corrective measures do not produce satisfactory results, please contact the local retailer authorized to distribute this type of product. If you can not

locate the appropriate retailer, please contact Yamaha Corporation of America, Electronic Service Division, 6600 Orangethorpe Ave, Buena Park, CA 90620

Dette apparat overholder det gaeldende EF-direktiv vedrørende

radiostøj.

Cet appareil est conforme aux prescriptions de la directive com-

munautaire 87/308/CEE.

Diese Geräte entsprechen der EG-Richtlinie 82/499/EWG und/

oder 87/308/EWG.

This product complies with the radio frequency interference

requirements of the Council Directive 82/499/EEC and/or 87/

308/EEC.

Questo apparecchio è conforme al D.M.13 aprile 1989 (Direttiva

CEE/87/308) sulla soppressione dei radiodisturbi.

Este producto está de acuerdo con los requisitos sobre interferen-

cias de radio frequencia ﬁjados por el Consejo Directivo 87/308/

CEE.

YAMAHA CORPORATION

IMPORTANT NOTICE FOR THE UNITED KINGDOM

Connecting the Plug and Cord

IMPORTANT: The wires in this mains lead are coloured in accordance

with the following code:

GREEN-AND-YELLOW : EARTH

BLUE : NEUTRAL

BROWN : LIVE

As the colours of the wires in the mains lead of this apparatus may not

correspond with the coloured markings identifying the terminals in your

plug, proceed as follows:

The wire which is coloured GREEN and YELLOW must be connected to

the terminal in the plug which is marked by the letter E or by the safety

earth symbol or coloured GREEN and YELLOW.

The wire which is coloured BLUE must be connected to the terminal

which is marked with the letter N or coloured BLACK.

The wire which is coloured BROWN must be connected to the terminal

which is marked with the letter L or coloured RED.

SPECIAL MESSAGE SECTION

PRODUCT SAFETY MARKINGS: Yamaha electronic prod-

ucts may have either labels similar to the graphics shown

below or molded/stamped facsimiles of these graphics on the

enclosure. The explanation of these graphics appears on this

page. Please observe all cautions indicated on this page and

those indicated in the safety instruction section.

● Explanation of Graphical Symbols

The exclamation point within the equilat-

eral triangle is intended to alert the user to

the presence of important operating and

maintenance (servicing) instructions in the

literature accompanying the product.

The lightning ﬂash with arrowhead symbol

within the equilateral triangle is intended to

alert the user to the presence of uninsulated

“dangerous voltage” within the product’s

enclosure that may be of sufﬁcient magni-

tude to constitute a risk of electrical shock.

IMPORTANT NOTICE: All Yamaha electronic products are

tested and approved by an independent safety testing labora-

tory in order that you may be sure that when it is properly

installed and used in its normal and customary manner, all

foreseeable risks have been eliminated. DO NOT modify this

unit or commission others to do so unless speciﬁcally autho-

rized by Yamaha. Product performance and/or safety stan-

dards may be diminished. Claims ﬁled under the expressed

warranty may be denied if the unit is/has been modiﬁed.

Implied warranties may also be affected.

SPECIFICATIONS SUBJECT TO CHANGE: The informa-

tion contained in this manual is believed to be correct at the

time of printing. However, Yamaha reserves the right to

change or modify any of the speciﬁcations without notice or

obligation to update existing units.

CAUTION: TO REDUCE THE RISK OF ELEC

-

TRIC SHOCK, DO NOT REMOVE COVER (O

R

BACK). NO USER-SERVICEABLE PART

S

INSIDE. REFER SERVICING TO QUALIFIE

D

SERVICE PERSONNEL.

ENVIRONMENTAL ISSUES: Yamaha strives to produce

products that are both user safe and environmentally friendly.

We sincerely believe that our products and the production

methods used to produce them, meet these goals. In keeping

with both the letter and the spirit of the law, we want you to

be aware of the following:

Battery Notice: This product MAY contain a small nonre-

chargeable battery which (if applicable) is soldered in place.

The average life span of this type of battery is approximately

ﬁve years. When replacement becomes neccessary, contact a

qualiﬁed service representative to perform the replacement.

Warning: Do not attempt to recharge, disassemble, or inciner-

ate this type of battery. Keep all batteries away from children.

Dispose of used batteries promptly and as regulated by appli-

cable laws. Note: In some areas, the servicer is required by

law to return the defective parts. However, you do have the

option of having the servicer dispose of these parts for you.

Disposal Notice: Should this product become damaged

beyond repair, or for some reason its useful life is considered

to be at an end, please observe all local, state, and federal reg-

ulations that relate to the disposal of products that contain

lead, batteries, plastics, etc.

NOTICE: Service charges incurred due to lack of knowledge

relating to how a function or effect works (when the unit is

operating as designed) are not covered by the manufacturer’s

warranty, and are therefore the owners responsibility. Please

study this manual carefully and consult your dealer before

requesting service.

NAME PLATE LOCATION: The graphic below indicates the

location of the name plate. The model number, serial number,

power requirements, etc., are located on this plate. You

should record the model number, serial number, and the date

of purchase in the spaces provided below and retain this man-

ual as a permanent record of your purchase.

Model

Serial No.

Purchase Date

92-469 1

IMPORTANT SAFETY INSTRUCTIONS

INFORMATION RELATING TO PERSONAL INJURY, ELECTRICAL SHOCK,

AND FIRE HAZARD POSSIBILITIES HAS BEEN INCLUDED IN THIS LIST.

WARNING — When using any electrical or electronic prod-

uct, basic precautions should always be followed. These pre-

cautions include, but are not limited to, the following:

Read all Safety Instructions, Installation Instructions,

Special Message Section items, and any Assembly

Instructions found in this manual BEFORE making any con-

nections, including connection to the main supply.

Main Power Supply Veriﬁcation: Yamaha products are

manufactured speciﬁcally for the supply voltage in the

area where they are to be sold. If you should move, or if any

doubt exists about the supply voltage in your area, please

contact your dealer for supply voltage veriﬁcation and (if

applicable) instructions. The required supply voltage is

printed on the name plate. For name plate location, please

refer to the graphic found in the Special Message Section of

this manual.

This product may be equipped with a polarized plug

(one blade wider than the other). If you are unable to

insert the plug into the outlet, turn the plug over and try again.

If the problem persists, contact an electrician to have the

obsolete outlet replaced. DO NOT defeat the safety purpose

of the plug.

Some electronic products utilize external power

supplies or adapters. DO NOT connect this type of

product to any power supply or adapter other than one

described in the owners manual, on the name plate, or specif-

ically recommended by Yamaha.

WARNING: Do not place this product or any other

objects on the power cord or place it in a position where

anyone could walk on, trip over, or roll anything over power

or connecting cords of any kind. The use of an extension cord

is not recommended! If you must use an extension cord, the

minimum wire size for a 25’ cord (or less) is 18 AWG.

NOTE: The smaller the AWG number, the larger the current

handling capacity. For longer extension cords, consult a local

electrician.

Ventilation: Electronic products, unless speciﬁcally

designed for enclosed installations, should be placed in

locations that do not interfere with proper ventilation. If

instructions for enclosed installations are not provided, it

must be assumed that unobstructed ventilation is required.

Temperature considerations: Electronic products

should be installed in locations that do not signiﬁcantly

contribute to their operating temperature. Placement of this

product close to heat sources such as; radiators, heat registers

and other devices that produce heat should be avoided.

1.

2.

3.

4.

5.

6.

7.

This product was NOT designed for use in wet/damp

locations and should not be used near water or exposed

to rain. Examples of wet/damp locations are; near a swim-

ming pool, spa, tub, sink, or wet basement.

This product should be used only with the components

supplied or; a cart, rack, or stand that is recommended

by the manufacturer. If a cart, rack, or stand is used, please

observe all safety markings and instructions that accompany

the accessory product.

The power supply cord (plug) should be disconnected

from the outlet when electronic products are to be left

unused for extended periods of time. Cords should also be

disconnected when there is a high probability of lightening

and/or electrical storm activity.

Care should be taken that objects do not fall and liquids

are not spilled into the enclosure through any openings

that may exist.

Electrical/electronic products should be serviced by a

qualiﬁed service person when:

a. The power supply cord has been damaged; or

b. Objects have fallen, been inserted, or liquids have

been spilled into the enclosure through openings; or

c. The product has been exposed to rain; or

d. The product does not operate, exhibits a marked

change in performance; or

e. The product has been dropped, or the enclosure of

the product has been damaged.

Do not attempt to service this product beyond that

described in the user-maintenance instructions. All

other servicing should be referred to qualiﬁed service person-

nel.

This product, either alone or in combination with an

ampliﬁer and headphones or speaker/s, may be capable

of producing sound levels that could cause permanent hearing

loss. DO NOT operate for a long period of time at a high vol-

ume level or at a level that is uncomfortable. If you experi-

ence any hearing loss or ringing in the ears, you should

consult an audiologist. IMPORTANT: The louder the sound,

the shorter the time period before damage occurs.

Some Yamaha products may have benches and/or

accessory mounting ﬁxtures that are either supplied as a

part of the product or as optional accessories. Some of these

items are designed to be dealer assembled or installed. Please

make sure that benches are stable and any optional ﬁxtures

(where applicable) are well secured BEFORE using. Benches

supplied by Yamaha are designed for seating only. No other

uses are recommended.

8.

9.

10.

11.

12.

13.

14.

15.

PLEASE KEEP THIS MANUAL

This information on safety is provided to comply with U.S.A. laws, but should be observed by users in all countiries.

92-469 2

1 Chapter : 1 Chapter :

Table of Contents

1

Introduction

..............................................1

Welcome to the CBX-D5...............................1

CBX-D5 features............................................1

Operating manual organization......................1

Important Notice............................................1

Unpacking .....................................................2

Installation......................................................2

Trademarks.....................................................2

Powering up a CBX-D5 System ....................2

2

CBX-D5 Terminology

..........................3

3

What is the CBX-D5?

...........................5

Inside the CBX-D5.........................................6

The CBX-D5 in a MIDI recording system.....7

4

Controls & Connections

...................8

Front panel .....................................................8

Rear panel ....................................................10

5

Connecting Hard Disk Drives

......13

What type of hard disk?...............................13

Hard disk size...............................................13

Choosing a hard disk....................................14

SCSI ............................................................14

SCSI cables..................................................15

Computer connection...................................15

SCSI ID setting ............................................16

SCSI termination..........................................17

6

Working with Hard Disks

...............18

Formatting....................................................18

Sound file management................................18

Sound file backup.........................................18

Computer utilities.........................................18

Hard disk fragmentation...............................19

Hard disk partitioning ..................................19

7

Recording

................................................20

Sampling frequency (REC FREQ)...............20

Digital input levels.......................................21

Setting the analog input level.......................21

Input level meters.........................................21

Headphone monitoring.................................21

Digital audio data containing SCMS ...........22

Digital audio data with emphasis.................22

20-bit digital audio.......................................22

8

Playback

.................................................. 23

Playback frequency (PB FREQ) ................. 23

Output level meters ..................................... 23

Sound file playback compatibility............... 23

Sound file regions........................................ 24

9

Converting the Sampling

Frequency & Digital Audio

Format in Real Time

...................... 25

10

Inputs & Outputs Explained

..... 26

ANALOG IN............................................... 26

ANALOG OUT........................................... 26

AES/EBU IN 1/2......................................... 27

AES/EBU OUT 1/2, 3/4.............................. 27

CD/DAT IN................................................. 27

CD/DAT OUT............................................. 27

Y2 IN........................................................... 28

Y2 OUT....................................................... 28

WORD CLK IN/OUT................................. 28

11

TO HOST connection

.................... 30

MIDI ........................................................... 30

Mac ............................................................. 31

PC-1 ............................................................ 32

PC-2 ............................................................ 32

TO HOST computer connecting cables ...... 33

12

Glossary

............................................... 34

13

Recording setup table

.................. 36

14

CBX-D5 Specifications

................ 37

Index

............................................................... 38

Appendix

.............................................. Add-1

Preset Effects ................................. Add-1

DSP/DEQ/DMIX Block Diagram.. Add-2

Preset effects parameter values ..... Add-3

Data-Value Assign Table ............... Add-5

Effect parameters............................ Add-8

MIDI Parameter............................ Add-24

MIDI Data Format........................ Add-28

MIDI Implementation chart.......... Add-32

Introduction 1Introduction 1Introduction 1

1 Introduction

Welcome to the CBX-D5

Thank you for purchasing a CBX-D5 Digital Recording Processor. Connecting the

CBX-D5 to a controlling computer with supporting software and an external hard disk will

provide up to four channels of CD quality audio recording, processing, and playback.

CBX-D5 features

• 4-channel system: 2-channel simultaneous recording, 4-channel playback.

• A/D conversion: 16-bit linear ∆ Σ modulation.

• D/A conversion: 18-bit with 8-times oversampling digital ﬁlter.

• Multi-band parametric DEQ for each channel.

• DSP provides 82 different reverb and modulation type effects.

• 4-input, 4-bus, 2-send digital mixer.

• Sampling frequencies: 48kHz, 44.1kHz, 32kHz, (22.05kHz analog input only).

• Analog inputs and outputs use professional style XLR type connectors.

• Digital I/O includes AES/EBU, CD/DAT & Y2 Yamaha format.

• 10 minutes of stereo audio requires approximately 100MB hard disk (fs=44.1kHz).

• Total recording time can be increased by adding more SCSI hard disks.

• All audio data processing is carried out within the CBX-D5, so much less is demanded

of the computer, eliminating data bottlenecks and slow screen redraws.

• Host computer connection allows direct connection to a computer without a MIDI

interface.

Operating manual organization

The CBX-D5 is supplied with three manuals: this Operating Manual, the System Setup

Guide, and a Test Program manual.

This Operating Manual contains full details about the CBX-D5 Digital Recording

Processor: what it is, how it works, and how to use it. It also contains an index that will

allow you to locate information quickly, and also a glossary of CBX-D5 terminology.

The System Setup Guide describes how to set up a recording system using the current

supporting computers and music programs. From time to time this guide will be updated

using single sheet supplements. Please see your Yamaha dealer for the latest supplement.

The Test Program manual should be used in conjunction with the Hardware Test Program

Disk for testing the CBX-D5 hardware.

Important Notice

YAMAHA AND THE SOFTWARE COMPANIES THAT PRODUCE CBX-D5

CONTROLLING SOFTWARE CANNOT BE HELD RESPONSIBLE FOR ANY LOSS

OF DATA OR FOR ANY DIRECT, INDIRECT, SPECIAL INCIDENTAL,

CONSEQUENTIAL OR OTHER DAMAGES SUFFERED BY THE USER OR OTHERS

RESULTING FROM THE USE OR PURCHASE OF THE CBX-D5, ITS

DOCUMENTATION, OR SUPPORTING SOFTWARE.

2 Chapter 1 : Introduction2 Chapter 1 : Introduction2 Chapter 1 : Introduction

Unpacking

The CBX-D5 packaging should contain the following items.

Store the packaging materials for future use.

Installation

The cosmetic appearance of the CBX-D5 has been designed to match typical computer

hardware. Its “footprint” size matches that of many computers so that it can easily be

installed with your other computer equipment.

The CBX-D5 should be placed on a ﬂat, stable surface.

The CBX-D5 can also be rack mounted using the supplied rack-mount kit. When installed

in the rack-mount kit the CBX-D5 requires 3U of rack space.

Trademarks

IBM



, PC-AT



, PS/1



, and PS/2



are registered trademarks of International Business

Machines Corporation.

Apple



and Macintosh



are registered trademarks of Apple Computer, Inc.

Atari



, ST



, TT



, and STE



are registered trademarks of Atari Corporation.

Mark of the Unicorn



is a registered trademark of Mark of the Unicorn, Inc.

All other trademarks are the property of their respective holders.

Powering up a CBX-D5 System

Some computer systems are a little bit fussy about which devices are switched on ﬁrst,

especially when a SCSI daisy chain is introduced into the system. As a good rule of

thumb, switch on all connected SCSI devices ﬁrst, then the computer.

1 CBX-D5 Serial No:

1 Power cable

1 8-pin mini DIN cable

1 MIDI cable

1 SCSI cable (50 to 50 Amphenol)

1 SCSI terminator

1 Rack-mount kit (L & R set)

1

Hardware Test Program Disk

1

Test Program Manual

1 This

Operating Manual

1

System Setup Guide

1 User Registration Card

NOTE: While using your CBX-D5 computer music system, do not switch off or

disconnect any device connected in the SCSI chain. Doing so will probably

lead to a system crash and you could loose valuable data.

CBX-D5 Terminology 3CBX-D5 Terminology 3CBX-D5 Terminology 3

2 CBX-D5 Terminology

SCSI

Pronounced scuzzy, the Small Computer System Interface is a connection format used for

connecting peripheral devices such as hard disks, printers, scanners, etc., to a computer.

Up to eight SCSI devices can be connected together in a daisy chain including the

controlling computer. Each device is given its own identity number from 0 to 7, this is

called the SCSI ID number.

The CBX-D5, a computer, and a hard disk are all connected as part of a SCSI daisy chain.

The SCSI connection carries audio data between the CBX-D5 and hard disk for recording

and playback, and also control data from the computer to the CBX-D5. The controlling

computer can also access the hard disk to perform basic sound ﬁle copy, delete, and backup

type functions. With the necessary software, digital audio data could be transferred

directly to the computer for on-screen waveform editing, etc.

The SCSI standard is quite a robust format, although, some care must be taken when

connecting and setting up SCSI devices. For full details about connecting SCSI hard disk

drives to the CBX-D5 see “Connecting Hard Disk Drives” on page 13.

Sound files

Just like other types of computer data, digital audio data is stored in ﬁles – sound ﬁles.

When recording starts, a sound ﬁle is created on the hard disk. This sound ﬁle can be given

a name, copied, and deleted just like any other computer ﬁle.

AES/EBU format

AES/EBU is a digital interface format established by the AES (Audio Engineering

Society) and EBU (European Broadcasting Union). It is used to transfer digital audio data

between professional digital audio equipment. Usually, two channels of digital audio (left

& right) are carried in one XLR type connection.

Although similar to the CD/DAT format, it is primarily intended for professional usage.

AES/EBU format connections can be found on most professional digital audio equipment

including hard disk recorders, digital mixers, professional DAT recorders, and many

digital VTRs.

CD/DAT format

Similar to the professional AES/EBU format, CD/DAT, or S/PDIF (Sony/Philips Digital

Interface Format) as it is otherwise known, is a digital interface format that is used to

transfer digital audio data between consumer type digital audio equipment such as CD

players, consumer DAT recorders, and the new DCC recorders.

Like the AES/EBU format, two channels of digital audio (left & right) are carried in one

connection, usually a phono/RCA jack type connection. Some MIDI samplers are ﬁtted

with a CD/DAT connection so that sample data can be transferred directly to a DAT

recorder for storage.

Y2 format

Y2 Yamaha format is a digital interface format developed by Yamaha that is used to

transfer digital audio data between Yamaha’s professional digital audio equipment. Two

channels of digital audio (left & right) are carried in one connection, usually an 8-pin DIN

type connection.

Yamaha’s professional digital audio products usually include the AES/EBU and CD/DAT

type formats as well as Y2, and the Y2 format can also be found on some other

manufacturers’ digital audio products. Yamaha’s professional digital audio products that

use Y2 include the DMR8 Digital Mixer/Recorder, DMC1000 Digital Mixing Console,

DRU8 Digital Recorder, and the DMP series of Digital Mixers.

4 Chapter 2 : CBX-D5 Terminology4 Chapter 2 : CBX-D5 Terminology4 Chapter 2 : CBX-D5 Terminology

Sampling frequency (REC FREQ)

During the analog to digital conversion process, the level of the analog audio signal is

sampled (measured) many times per second. Each of these sample measurements is then

stored as a 16-bit binary value. For digital to analog conversion (playback), these 16-bit

binary values are used to reconstruct the analog audio signal. The rate at which these

sample measurements take place is called the sampling frequency and you may already

know that the sampling frequency used by CD players is 44.1kHz.

The CBX-D5 can record audio using any one of four sampling frequencies: 48kHz,

44.1kHz, 32kHz, and 22.05kHz. The audio quality (bandwidth) of a digital system is

directly affected by the sampling frequency. Essentially, the audio bandwidth will be

roughly half the chosen sampling frequency. See “Sampling frequency (REC FREQ)” on

page 20 for more details.

Word clock

When a number of digital audio devices are connected together and data is digitally

transferred between them, it is essential that the data processing circuits of all devices are

synchronized. To achieve this, one device operates as a word clock master and all other

devices operate as word clock slaves. The frequency of the word clock corresponds

directly to the digital audio data’s sampling frequency.

If you only connect two digital audio devices, say the CBX-D5 to a DAT recorder, word

clock setup is quite straight forward and no word clock connections will be required.

However, when three devices are connected, serious thought will need to be given as to

which device is word clock master and how to make the word clock connections. See

“WORD CLK IN/OUT” on page 28 for more details.

To Host

An 8-pin mini DIN connector that allows direct connection to a computer that is running

CBX-D5 supporting software. This can be used when your computer does not have a

MIDI interface, i.e. MIDI input and output connections. See “TO HOST connection” on

page 30 for more details.

NOTE:

Word clock signals should not be confused with other synchronizing signals

such as SMPTE timecode and MTC (MIDI Timecode). Although both may

be used in a digital audio system, word clocks are for synchronizing digital

audio data processing circuits such as CPUs, D/A, A/D converters, etc., while

SMPTE and MTC timecodes are for synchronizing audio and video tape

machines, MIDI sequencers, etc., relative to time – hours, minutes, seconds,

and frames.

NOTE:

Not all CBX-D5 supporting music software can use this type of connection,

so please consult your Yamaha dealer before making a purchase.

What is the CBX-D5? 5What is the CBX-D5? 5What is the CBX-D5? 5

3 What is the CBX-D5?

The CBX-D5 is a Digital Recording Processor that, when connected to a controlling

computer with supporting software and an external hard disk, provides up to four channels

of CD quality audio recording, processing, and playback.

Computer based

The CBX-D5 is controlled by a computer that is running CBX-D5 supporting software.

All audio data processing takes place inside the CBX-D5, so there is very little demand on

the controlling computer. For this reason the CBX-D5 can be used with some of the less

powerful, less expensive computers such as the Apple Macintosh SE/30, Classic II, and

LC; and the Atari ST/STE. It also leaves the computer free to get on with other jobs such

as processing MIDI sequence data and screen updates.

The CBX-D5, computer, and hard disk are all connected as part of a SCSI daisy chain. The

SCSI connection carries audio data between the CBX-D5 and hard disk for recording and

playback, and also control data from the computer to the CBX-D5. A MIDI connection

between the CBX-D5 and computer carries continuous controller information for

real-time volume, EQ, and pan control of the CBX-D5’s digital mixer.

Four-channel system

The CBX-D5 is a 4-channel system, i.e., 2-channel simultaneous recording and

4-channel playback. Channels can be recorded while other channels playback.

The CBX-D5 needs about 100Mbytes of hard disk space to record 10 minutes of stereo

digital audio (fs = 44.1kHz). The available recording time can be increased by simply

adding more, or larger hard disk drives to the SCSI daisy chain.

CD quality & editing

The CBX-D5 records audio data at a 16-bit resolution, and with 44.1kHz and 48kHz

sampling frequencies it provides all the sound quality beneﬁts of the Compact Disc format

such as faithful reproduction, low noise, minimal distortion, etc.

Analog input and output signals are processed by 16-bit linear ∆ Σ modulation A/D and

18-bit 8-times oversampling D/A converters. Analog connections use balanced XLR type

connectors. Digital I/O consists of AES/EBU, CD/DAT, and Y2. Allowing digital audio

data transfer between the CBX-D5 and other digital audio equipment.

As well as the A/D, D/A converters, the CBX-D5 also contains a 4-input, 4-bus, 2-send

digital mixer; a DSP for digital effects; DEQ for real-time EQ control; and sampling

frequency converters that allow recording and playback at differing sampling frequencies.

As well as the sound quality, two other beneﬁts of recording with a CBX-D5 system as

opposed to analog tape are, the ability to nondestructively edit recordings and being able

to move audio data relative to time, a feature often referred to as audio time slip.

For a listing of some other CBX-D5 features, see “CBX-D5 features” on page 1.

The future

The CBX-D5 is a software dependent device, so with future supporting software it may be

possible to use the CBX-D5 for digital mixing with digital EQ and effects, sampling,

2-track mastering, waveform editing, and multimedia type applications.

6 Chapter 3 : What is the CBX-D5?6 Chapter 3 : What is the CBX-D5?6 Chapter 3 : What is the CBX-D5?

Inside the CBX-D5

The following block diagram shows how the CBX-D5 processes audio data as it travels

from input to output and to the external SCSI hard disks.

DIGITAL

MIXER

4 INPUT

4 BUS

2 SEND

A/D

CONVERTER

DIGITAL

INTERFACE

A/D

CONVERTER

CBX-D5

SCSI

CONTROLLER

PLAY BUFFER

(RAM)

Fs

CONVERTER

PLAY

CONTROL

DEQ

DEQPLAY

CONTROL

Fs

CONVERTER

DEQPLAY

CONTROL

Fs

CONVERTER

DEQPLAY

CONTROL

Fs

CONVERTER

CONTROLLER

DSP

EFFECTS

Fs

CONVERTER

Fs

CONVERTER

Fs

CONVERTER

Fs

CONVERTER

Fs

CONVERTER

Fs

CONVERTER

PLAYBACK

WORDCLOCK

RECORD

WORDCLOCK

RECORD

BUFFER

(RAM)

Y2

INTERFACE

S/PDIF

INTERFACE

AES/EBU

INTERFACE

AES/EBU

INTERFACE

D/A

CONVERTER

D/A

CONVERTER

D/A

CONVERTER

D/A

CONVERTER

ANALOG IN 1

ANALOG IN 2

AES/EBU

IN 1/2

CD/DAT

IN 1/2

Y2 IN 1/2

WORD

CLK IN

WORD

CLK OUT

ANALOG

OUT 1

ANALOG

OUT 2

ANALOG

OUT 3

ANALOG

OUT 4

CD/DAT

OUT 1/2

Y2 OUT 1/2

AES/EBU

OUT 1/2

AES/EBU

OUT 3/4

VOLUME, PITCH

SYNC

EQ

MIDI

MIDI OUT, or

Serial port

MIDI IN, or

TO HOST

HARD

DISK 1

HARD

DISK 2

SCSI

INPUT MONITOR

SIGNAL PATH

Fs = Sampling Frequency

WORDCLOCK

AUDIO

MIDI

HOST COMPUTER

INPUT LEVEL

METER

S

OUTPUT

LEVEL

METERS

The CBX-D5 in a MIDI recording system 7The CBX-D5 in a MIDI recording system 7The CBX-D5 in a MIDI recording system 7

The CBX-D5 in a MIDI recording system

The following diagram shows how the CBX-D5 can be integrated into a MIDI sequencer

based music production system.

MIDI OUT

MIDI

OUT

SERIAL PORT

TO HOST

MIDI IN

MIDI SOUND

SAMPLER

MIDI DRUM MODULE

MIDI TONE

GENERATOR

MIDI

MULTI-EFFECTOR

MASTER

RECORDER

MONITOR AMP

HOST CABLE

AUDIO CABLE

MIDI CABLE

SCSI

HARD

DISK

CD/DAT

YAMAHA

CBX-D5

SCSI

GROUP

OUT x2

LINE IN x4

DIGITAL

TRANSFER

8 Chapter 4 : Controls & Connections8 Chapter 4 : Controls & Connections8 Chapter 4 : Controls & Connections

4 Controls & Connections

Front panel

1 POWER switch

Used to turn the power on and off. Press once to switch on, press again to switch off.

2 SOURCE indicators

Indicates the input selected for recording: AES/EBU, Y2, CD/DAT, or ANALOG. The

source input selection is made by the controlling software.

3 REC FREQ indicators

Indicates the selected sampling frequency for recording: 48kHz, 44.1kHz, 32kHz, and

22.05kHz (analog inputs only). The sampling frequency selection is made by the

controlling software.

4 PB FREQ indicators

Indicates the sampling frequency of the digital audio data that is being output by the

CBX-D5: 48kHz, or 44.1kHz. The playback sampling frequency setting is made by the

controlling software.

When the CBX-D5 is used with an external word clock, the digital outputs will operate at

the same frequency as the external word clock and that frequency will not be indicated by

the “PB FREQ” indicators.

Front panel 9Front panel 9Front panel 9

5 INPUT LEVEL meters

Two 12-segment LED bargraphs indicate the level of the incoming digital audio when the

input source is set to AES/EBU, CD/DAT, or Y2 (not affected by the level controls), or the

level of the analog input signals when the input source is set to ANALOG (controlled by

the “ANALOG IN” level controls).

6 OUTPUT LEVEL meters

Four 12-segment LED bargraphs that indicate the output level of channels 1 ~ 4. The

“CLIP” LED indicates an output level of +17dBm.

7 ANALOG IN LEVEL control

Independent level controls for analog input channels 1 and 2. As well as independent level

control, these controls can also be used to balance the left and right channels of a stereo

source connected to the analog inputs.

8 PHONES VOL

Adjusts the volume level of the headphones.

9 PHONES connection

A stereo 6.35 mm (1/4 inch) phone jack used for connecting a pair of stereo headphones.

All four CBX-D5 audio channels can be monitored – channels 1 and 3 appear in the left

speaker and channels 2 and 4 in the right.

NOTE:

Unlike peak meters on analog equipment that light up approximately 3 ~ 6dB

before signal clipping, CLIP LEDs on digital equipment light up when the

signal has actually clipped. Digital audio signal clipping normally produces

unpleasant distortion, pops, and clicks, so care must be taken when setting

the recording level for analog input signals. See “Recording” on page 20 for

more details.

NOTE:

Just like the input level meters, lighting an output level meter’s “CLIP” LED

should be avoided to prevent signal distortion. This situation may occur when

two or more CBX-D5 audio channels are mixed, or if excessive EQ is

applied. The CBX-D5 does not have any output level controls, the output

level is set by the controlling software.

NOTE:

These controls have no effect on the AES/EBU, CD/DAT, and Y2 digital

inputs and outputs.

10 Chapter 4 : Controls & Connections10 Chapter 4 : Controls & Connections10 Chapter 4 : Controls & Connections

Rear panel

The explanations below are only brief introductions to the CBX-D5’s rear panel

connections. For full details about the inputs and outputs, see “Inputs & Outputs

Explained” on page 26.

1 ANALOG IN 1&2

A pair of female XLR 3-31 type connectors used for inputting analog audio signals. These

are balanced inputs with a nominal input level of +4dBm and a maximum input level of

+22dBm. These could be connected to the outputs of a mixer, synthesizer, drum machine,

etc. Microphones, guitars, and equipment with an output level less than –20dBm must ﬁrst

be connected to a preampliﬁer, then to the CBX-D5.

2 ANALOG OUT 1 ~ 4

Four male XLR 3-32 type connectors used for outputting channels 1 ~ 4 as analog audio

signals. These are balanced outputs with a nominal output level of 0dBm and a maximum

output level of +17dBm. These could be connected to the inputs of a mixer, ampliﬁer, tape

recorder, or DAT recorder.

3 AES/EBU IN 1/2

A female XLR 3-31 type connector for inputting AES/EBU format digital audio. Only one

input connection is required for channels 1 and 2 because the AES/EBU format carries two

signals in one connection. These could be used when recording digital audio data from

professional digital audio equipment such as another hard disk recorder, a digital mixer,

digital recorder, or digital VTR.

NOTE:

When the Analog inputs are used unbalanced, the maximum input level is

reduced to +16dBm.

Rear panel 11Rear panel 11Rear panel 11

4 AES/EBU OUT 1/2 & 3/4

Two male XLR 3-32 type connectors for outputting AES/EBU format digital audio.

Channels 1 and 2 are output via “OUT 1/2”, and channels 3 and 4 via “OUT 3/4”. These

could be used to transfer digital audio data from the CBX-D5 to professional digital audio

equipment.

5 CD/DAT IN 1/2

A Phono/RCA jack for inputting CD/DAT format digital audio. Channels 1 and 2 are

carried in the same connection. This connection could be connected to the digital output

of a CD player or DAT recorder and allows digital audio recording without multiple D/A,

A/D audio data conversions. Some MIDI samplers are ﬁtted with this type of connection.

In this case your sound samples could be recorded directly to your CBX-D5 system.

6 CD/DAT OUT 1/2

A Phono/RCA jack for outputting CD/DAT format digital audio. Channels 1 and 2 are

carried in the same connection. This could be connected to the digital input of a DAT

recorder or DCC recorder, and allows digital audio recording without multiple D/A, A/D

audio data conversions.

7 Y2 IN 1/2

An 8-pin DIN socket for inputting Y2 Yamaha format digital audio. As with the AES/EBU

and CD/DAT formats, two audio channels are carried in the same connection. This could

be connected to one of Yamaha’s digital audio products such as a DMR8 Digital

Mixer/Recorder, DMC1000 Digital Mixing Console, DRU8 Digital Recorder, SPX1000

Effect Processor, or the DMP series of Digital Mixers.

8 Y2 OUT 1/2

An 8-pin DIN socket for outputting Y2 Yamaha format digital audio. This could be used

to transfer digital audio data from the CBX-D5 to one of the Yamaha professional digital

audio products listed above. You might not own one of these products yourself, but you

may need to transfer some of your audio data to a recording studio that does.

9 WORD CLK IN/OUT

Two BNC type connectors for inputting and outputting word clock signals. A common

word clock signal is used to synchronize data processing circuits when a number of digital

audio devices are connected together. For a full description of how and when to use these

connections, see “WORD CLK IN/OUT” on page 28.

NOTE:

It is widely known that the weakest links in a digital audio system are the A/D

and D/A converters. For once the audio has been converted into a digital

form, it is immune from all the problems usually associated with analog

equipment such as distortions and noise. Although the effects of multiple

conversions will be hard to spot, even for the best trained ears, it makes sense

that once converted, we try and keep the audio in a digital form by using these

digital I/O connections wherever possible.

12 Chapter 4 : Controls & Connections12 Chapter 4 : Controls & Connections12 Chapter 4 : Controls & Connections

0 MIDI IN

The CBX-D5 receives MIDI control data from the computer via this connection. To

prevent the CBX-D5’s control data being delayed by other MIDI devices, the CBX-D5

should be the ﬁrst device connected to your computer. Other MIDI devices should then be

connected to the CBX-D5’s MIDI THRU connection.

If your computer’s MIDI interface has two or three MIDI outputs, dedicate one for use

with the CBX-D5.

A MIDI OUT

When the CBX-D5 is being used as a MIDI interface, that is, a direct connection to a

computer via the To Host connection, MIDI data from the computer is output to other

MIDI devices from this connection. Also used for MIDI bulk dump.

B MIDI THRU

MIDI data appearing at the MIDI IN connection is buffered, then output from this

connection. In other words, all MIDI data appearing at the MIDI IN connector is output to

the MIDI THRU connector unaffected by the CBX-D5.

C TO HOST connector

An 8-pin mini DIN connector that allows direct connection to a computer that is running

CBX-D5 supporting software. This can be used when your computer does not have a

MIDI interface, i.e., MIDI input and output connections. See “TO HOST connection” on

page 30 for more details.

D TO HOST select switch

This switch setting depends on the type of computer connected to the “TO HOST”

connector. See “TO HOST connection” on page 30 for full details.

E SCSI connectors

Two 50-way Amphenol type connectors used to connect the CBX-D5 into the SCSI daisy

chain.

F SCSI ID selector

A thumb wheel type switch used to set the SCSI ID number of the CBX-D5. See “SCSI

ID setting” on page 16 for more details.

G Power inlet

A 3-pin power inlet socket. Connect the supplied power cable to this socket, then plug the

other end of the cable into an AC receptacle of the correct type.

NOTE:

Although not usually a problem on a small MIDI system, when more than

three MIDI devices are daisy chained together using MIDI IN and THRU

connections, MIDI data can sometimes be delayed, especially if you transmit

a lot of continuous controller data such as pitch bend or modulation wheel. If

MIDI delays do become a problem, use a MIDI THRU Box to distribute the

MIDI signal to each MIDI device.

NOTE:

The operation of the MIDI IN and MIDI OUT connections varies depending

on the position of the CBX-D5’s Host select switch. See “TO HOST

connection” on page 30 for full details.

Connecting Hard Disk Drives 13Connecting Hard Disk Drives 13Connecting Hard Disk Drives 13

5 Connecting Hard Disk Drives

Before connecting a hard disk drive, read through this chapter to familiarize yourself with

SCSI and how a SCSI daisy chain should be setup.

What type of hard disk?

If you don’t already have a hard disk or are thinking of buying a larger one, see the supplied

card for a listing of recommended disk drives.

Hard disk size

The following table shows approximate available recording times for various sizes of hard

disk. Available recording times are shown for all of the CBX-D5’s sampling frequencies,

and as you can see, with a higher sampling frequency – less time is available. This is

because using a high sampling frequency produces much more digital data, which means

a bigger sound ﬁle. See “Sampling frequency (REC FREQ)” on page 20 for more details

about selecting a sampling frequency.

Although it is doubtful that you will ever buy a hard disk smaller than 40MB for use with

the CBX-D5, the values below 40MB will be useful for checking the remaining record

time that is available on a hard disk that already contains some sound ﬁles.

Hard disk / Max.

Sound File Size

Stereo Recording (minutes) Mono Recording (minutes)

22.05

kHz

32

kHz

44.1

kHz

48

kHz

22.05

kHz

32

kHz

44.1

kHz

48

kHz

2000MB (2GB) 380 260 190 174 760 760 380 348

1000MB (1GB) 190 130 95 87 380 380 190 174

660MB 124 85 62 57 248 248 124 114

330MB 62 42 31 28 124 124 62 56

200MB 40 25 20 17 80 50 40 34

100MB 20 13 10 8 40 26 20 16

40MB 8 5 4 3.30 16 10 8 7

20MB 4 3 2 1.42 8 6 4 3.24

10MB 2 1.18 1 51

secs

4 2.36 2 1.42

5MB 1 38

secs

30

secs

26

secs

2 1.16 1 52

secs

1MB 12

secs

7 secs 6 secs 5 secs 24

secs

24

secs

12

secs

10

secs

14 Chapter 5 : Connecting Hard Disk Drives14 Chapter 5 : Connecting Hard Disk Drives14 Chapter 5 : Connecting Hard Disk Drives

Choosing a hard disk

If you plan to buy a hard disk that is not listed on the supplied card, the following

speciﬁcations should be checked ﬁrst.

SCSI

For an general introduction to SCSI, see “SCSI” on page 3.

Setting up a SCSI daisy chain requires a little more than just making connections. SCSI

devices require ID numbers and the daisy chain must be terminated correctly. These are

explained in the following three sections, “SCSI cables”, “SCSI ID setting”, and “SCSI

termination”.

When using a SCSI daisy chain, the following points should be borne in mind.

• Allocate each device its own SCSI ID number.

• Terminate the SCSI bus correctly.

• Use quality cables and keep the length down.

• Use the little wire clips (or screws) on a SCSI connector to fasten the cable plugs

securely.

• All devices connected in the daisy chain must be switched on to use the system.

• Never switch off, or disconnect a device once the system has been switched on.

Specification Check Notes

Is it compatible with your computer?

Maybe it is advertised as compatible, or your

dealer recommends it.

Does it have two SCSI connectors? You need two to continue the SCSI daisy chain.

Are the SCSI connectors 25-pin

D-SUB, or 50-way Amphenol?

Macintosh computers are fitted with a 25-pin

D-SUB connector, while most other SCSI devices

have a 50-way Amphenol connector.

Are the SCSI cables supplied? If not, you will need to purchase them separately.

Can the SCSI ID be set from 0 ~ 7? (for

Macintosh you only need 0 ~ 6)

If not, it might clash with another device’s ID, in

which case you may have to rearrange the ID

numbers of some other SCSI devices in the

chain.

Does it have internal or external

termination?

External terminators are normally connected to

the rear of the SCSI device. If the device has an

internal terminator, make sure it can be switched

off so that any device can be positioned at the

end of the SCSI daisy chain.

Access Time?

Measured in milliseconds, this is an indication of

how fast data from different areas of the disk can

be retrieved. The maximum we recommend is

30ms. An access time slower than this may affect

the performance of the CBX-D5.

Data Transfer Rate?

Usually measured in Megabits per second

(Mbit/s), this shows how fast data can be written

to and read from the hard disk. The minimum we

recommend is 16Mbits/s. A transfer rate less than

this may affect the performance of the CBX-D5.

NOTE:

Switch off all your equipment before making any SCSI connections.

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