ADPCM_Package

Short:        Highly effective sample compression utils
Author:       flowerp@eikon.e-technik.tu-muenchen.de (Christian Buchner)
Uploader:     flowerp eikon e-technik tu-muenchen de
Type:         util/pack
Architecture: m68k-amigaos


This sample compression package consists of:

 - a CDRipper for Thoshiba CDRoms (and some IDE/ATAPI drives!)
 - a RAW PCM and AIFF to ADPCM converter (use e.g. for MPeg Audio)
 - a converter for any sound format to ADPCM using datatypes
 - a stand alone ADPCM replayer with wildcard support
 - an ADPCM DeliPlayer for use with DeliTracker
 - an ADPCM datatype for use with e.g. MultiView

Even better: ALL THIS IS PUBLIC DOMAIN, FULL SOURCE CODE INCLUDED!


What has changed since the first release?
-----------------------------------------

Release 2: release on Aminet 5-Oct-95

- all programs got a version string
- fixed makefile of ADPCM datatype
- PlayADPCM slightly updated (->V1.1)
- reduced chip buffer size for the DeliPlayer to 1K (->V1.1)
- The DeliPlayer got a realtime loader and a NotePlayer interface (->V1.2)
- the ADPCM datatype descriptor was buggy (marked as picture!)
- improved X2ADPCM's datatypes error output (->V1.1)
- I got a new address and phone number!

Release 3: release on Aminet 22-Oct-95

- small fixes to the DeliPlayer's Noteplayer interface
- CDripper got NumTracks option, Maximize and Boost abilities (->V1.1)

Release 4: release on Aminet 30-Jul-97

- added the Hifi2ADPCM program.


What is ADPCM?
--------------

ADPCM is a lossy sample compression method allowing a very high compression
ratio.   The  drawback  of  this  compression technique is an audible noise
level, but this is still acceptable.


Example
-------

You  can rip off a 3 minute music track from CD ("Cotton Eye Joe", 22050Hz,
Mono)  and  store it in 982999 bytes.  This can be further reduced by about
10%  using  an  ordinary  packer.   You can listen to this audio track with
DeliTracker just like an ordinary sound module.


  //
\X/ Flowerpower