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The 640 MEG Shareware Studio 1
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The 640 Meg Shareware Studio CD-ROM Volume I (Data Express)(1992).ISO
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driver
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macpab1.dsk
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README
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1992-06-30
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Congratulations on the purchase of your new M-Audio Capture and Playback
Adapter for the IBM Personal System/2. Included are device drivers
and Application Programming Interfaces (APIs) that can be used for
the development of audio and image applications under DOS, OS/2, and Windows.
Both IBM OS/2 2.0 and Microsoft Multimedia Extensions are supported.
Contents:
Along with this README file your diskettes should contain the files
MACPA1.ZIP and MACPA2.ZIP These are self-extracting ZIP files containing
the following directories:
AUDIO -
\AUDIODD - Device drivers for the M-ACPA for both DOS and OS/2.
Provides a hardware independent interface for low level
control of both waveform audio and MIDI. Also provides
serialization of the M-ACPA so that it can be used in
multi-tasking environments.
\MAAPI - The Audio Application Programming Interface (AAPI) is a
set of high level "C" functions intended to allow applications
to add audio capabilities such as playing and recording
with a minimum of effort. The AAPI is file oriented and
supports Audio Visual Connection and Microsoft RIFF
WAVE file formats. The AAPI supports DOS and OS/2.
\WINDLL - A Windows device driver (DLL) that supports
Microsoft's Multimedia Extensions.
IMAGE -
\JPEG - JPEG (Joint Photographic Experts Group) is an industry
standard for the compression and decompression of
continuous tone still images. It consists of a baseline
standard plus extensions. This API supports the baseline
standard. Supports DOS, OS/2, and Microsoft Windows.
Installation:
Copy all the files from both diskettes into the subdirectory that you
want the component files to reside in, make that directory your current
directory and type:
MACPA
followed by the Enter key.
This will install all directories and requires approximately three
megabytes of disk storage.
Each of the above directories contains a unique README file for quick
reference and any additional installation instructions.
See the file LICENSE.DOC on this diskette for licensing information.
In the United States, technical support is available through the IBM
Industry Support Center by calling 1-800-241-1620. Outside of the United
States contact your local IBM representative.
Enhancements\Fixes for Release 1.02:
\AUDIODD
* OS/2 2.0
- Virtual Device Driver support
* PCM/MIDI
- Concurrent operation of 8 bit PCM at 11k & 22k with MIDI synthesis
* General MIDI support
- Synthesizer now supports General MIDI voicing
- SONG1 - SONG8 have been changed to work with General MIDI synthesizers
- Synthesizer voices have been improved
- Drum kit added to channel 10
* Line in passthru support
- Passes any line input to the line\speaker output when the device
driver is idle. Useful for directing the line output of other audio
cards in the same machine to a single set of speakers or headphones.
* 8k recording improvements
- Less distortion and noise
- 3db rolloff point for mono recording will be about 3450 hertz
- 3db rolloff point for stereo recording will be about 3200 hertz
* Playback of M-Motion digital audio files
- 7875 and 31500 samples/second
- mono and stereo
* Playback of 48k digital audio files
\WINDLL
* Microsoft Windows 3.1 support
* Concurrent play of 8 bit PCM (11k & 22k) mono WAVE files with
MIDI and auxiliary input
* Overall performance improvements
* Default control volume and balance values for WAVE and MIDI
\JPEG
* YYUV images with odd number of columns handled correctly
* Restart interval MDU count with reset is now working
* Last 8 bytes of non-optimized formats appears in decompressed output
* Performance of data transfer is significantly faster
Refer to the README file in each directory for additional information.