Cbx-D3 Terminology; Scsi; Sound Files; Sampling Frequency - Yamaha CBX-D3 Owner's Manual

Digital recording processor

Hide thumbs Also See for CBX-D3:

Table of Contents

2 CBX-D3 Terminology

SCSI (pronounced "scuzzy") stands for Small Computer System Interface. The SCSI is a

standard format for connecting a computer to peripheral devices such as hard disks,

printers, and scanners. Devices are connected in a daisy chain, with each device (including

the computer) identiﬁed by a SCSI ID between 0 and 7.

Your CBX-D3, your computer, and your hard disk are connected together in a SCSI daisy

chain. The CBX-D3 uses the SCSI connection to transmit audio data to or from the hard

disk for recording or playback. The computer uses the connection to send control data to

the CBX-D3, and to perform copy, delete, and backup operations on the hard disk. With

appropriate software, it is also possible to transfer digital audio data directly to your

computer for onscreen waveform editing or other processing.

Although the SCSI standard is fairly robust, some care must be taken when connecting and

setting up the devices. For details about how to connect hard disk drives, refer to page 10.

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. Sound ﬁles can be named,

copied, or deleted just like any other computer ﬁles.

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. CD players use a sampling frequency of 44.1kHz.

The CBX-D3 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. Refer to the discussion of sampling frequency

in the chapter on "Recording" (see page 16) for additional details.

CBX-D3 Terminology3

CBX-D3 Terminology

Table of Contents