Activeforever Plextalk PTR2 Digital DAISY Player and Recorder - Manual (Page 223)

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Appendix D - Glossary.
Audio type CD-R or CD-RW disc.
When a CD-R or CD-RW disc is intended for use as an audio disc, an audio
application code is recorded onto the blank disc during manufacture. This
identification code makes it possible to differentiate between audio/music
type CD-R or CD-RW and PC type CD-R or CD-RW media. This prevents
you from recording in Music CD format, even when trying to record using
an audio CD-R or CD-RW recorder.
Automatic gain control (AGC).
This is a feature that allows the recording level to be adjusted
automatically. When the level is low, it will be increased by 6dB. When
the level is high, it will be reduced to below 3dB.
Auto section setting.
PLEXTALK contains a setting for automatic section division. When input is
silent for the specified number of seconds, PLEXTALK automatically
creates a section at that point. To use this function, set the required time
in the Custom recording settings. Select "No setting" if you do not wish to
use this function.
Background noise level of input sound.
With PLEXTALK, this is a way of specifying a noise level other than the
voice or music that is being input. For example, if inputting sound from a
tape, the tape hiss can be specified as noise.
Bit rate.
Bit rate is a measure of data transmission speed. It refers to the number of
bits of data transmitted in one second.
CD Extra.
This is a CD format. It records the first session as a music track and the
second session as an XA Mode 2 data track. It is also referred to as "CD-
Plus" and "Enhanced CD".
CD-Plus.
Same as CD Extra above.