EXP Computer AudioDrive Ver. 3.0 - Manual (Page 46)

Audio Applications 3.0 User Guide
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The Extended Recorder Page 40
7: The Extended Recorder
Introduction
The Extended Recorder is designed as a tool for recording meetings,
conversations, and dictation. Like the Audio Recorder, the Extended
Recorder records, compresses, stores, and plays voice, music, and other
sound. Unlike the Audio Recorder, the Extended Recorder compresses and
stores the audio file directly to your hard disk, using on-chip ESPCM
compression. The recording time is limited only by the amount of hard disk
space you have available.
The Extended Recorder can record to and playback from both PCM and
.AUD formats. PCM is the Microsoft Windows 3.1 audio file format. The
.AUD format uses ESPCM compression to produce an audio file. The
Extended Recorder provides a choice of linear PCM (8 or 16 bits) and
ESPCM low (4 bits) compression.
System Requirements
Use the Extended Recorder with a hard disk compression utility only if you
have a high-performance system and are using a low data rate for recording
and playback. Otherwise, the computer's CPU may become overloaded.
If you wish to use 16-bit stereo at 44 kHz for recording or playback, we
recommend that your computer have the following capabilities:
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a 486 running at 50 MHz or more
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8 megabytes or more of RAM
•
an average hard disk access time of 15 milliseconds or faster
Computers without these capabilities may lose data if you attempt 16-bit
stereo, 44 kHz recording or playback.