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Instruments de musique - CBXD5 (829.8 kb)
Instruments de musique - CBXD5 (155.44 kb)
Instruments de musique - CBXD5 (42.27 kb)
Facilité d'utilisation
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 D S 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. Chapter 3 : What is the CBX-D5? Chapter 3 : What is 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. DIGITALMIXER4 INPUT4 BUS2 SEND A/DCONVERTER DIGITALINTERFACE A/DCONVERTER CBX-D5SCSICONTROLLERPLAY BUFFER(RAM) FsCONVERTER PLAYCONTROL DEQDEQPLAYCONTROL FsCONVERTER DEQPLAYCONTROL FsCONVERTER DEQPLAYCONTROL FsCONVERTER CONTROLLER DSPEFFECTS FsCONVERTERFsCONVERTERFsCONVERTERFsCONVERTERFsCONVERTERFsCONVERTER PLAYBACKWORDCLOCKRECORDWORDCLOCK RECORDBUFFER(RAM) Y2INTERFACES/PDIFINTERFACEAES/EBUINTERFACEAES/EBUINTERFACED/ACONVERTERD/ACONVERTERD/ACONVERTERD/ACONVERTER ANALOG IN 1ANALOG IN 2AES/EBUIN 1/2CD/DATIN 1/2Y2 IN 1/2WORDCLK INWORDCLK OUTANALOGOUT 1ANALOGOUT 2ANALOGOUT 3ANALOGOUT 4CD/DATOUT 1/2Y2 OUT 1/2AES/EBUOUT 1/2AES/EBUOUT 3/4 VOLUME, PITCHSYNC EQ MIDI MIDI OUT, orSerial port MIDI IN, orTO HOST HARDDISK 1HARDDISK 2 SCSI SCSISCSI INPUT MONITORSIGNAL PATH Fs = Sampling FrequencyWORDCLOCKAUDIOMIDI HOST COMPUTER INPUT LEVELMETERS OUTPUTLEVELMETERS The CBX-D5 in a MIDI recording system 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 PORTTO 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 Chapter 4 : Controls & Connections Chapter 4 : Controls & Connections 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 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). 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 s...