Roman Black Sound (btc)


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  1. #1
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    Default Microchip sound playing and recording application note AN643

    I had not seen this before. I have not played the files from a PIC yet, but it sounds interesting as well. This C code uses a "simplified Adaptive Differential Pulse Code Modulation (ADPCM) algorithm". The files look slightly larger than the Roman Black files, but not by much, comparing to the numbers files sizes. The source code also has an executable file called winspeech.exe which encodes wave files.

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    Source code: http://ww1.microchip.com/downloads/e...otes/an643.zip
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    Last edited by ScaleRobotics; - 14th August 2010 at 17:09.
    http://www.scalerobotics.com

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    Quote Originally Posted by scalerobotics View Post
    I had not seen this before. I have not played the files from a PIC yet, but it sounds interesting as well. This C code uses a "simplified Adaptive Differential Pulse Code Modulation (ADPCM) algorithm". The files look slightly larger than the Roman Black files, but not by much, comparing to the numbers files sizes.

    Source code: http://ww1.microchip.com/downloads/e...otes/an643.zip
    See M25P32 PIC Audio.
    Options include 16 bit ADPCM compression to 4 bit in Basic.

    Sound quality far better than Roman Black's.
    The M25P32 may not be as easily found by now as its transfered ownership.

    Norm

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