py-kcs Encode/Decode Kansas City Standard Cassette Audio Data
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audio encoder audio encoder audio decoder cassette audio cassette

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Encode/Decode Kansas City Standard Cassette Audio Data py-kcs provides a pair of scripts, kcs_encode.py and kcs_decode.py that encode and decode WAV audio files containing data encoded in the Kansas City Standard as used on some of the first home computers. In my case, an Ohio Scientific Superboard II from 1978. For more information on KCS encoding, see http://en.wikipedia.org/wiki/Kansas_City_standard.Usage:First of all, you need to install Python-3.1.2 or newer on your system.To encode a text file into a WAV file suitable for playback, do this: % python3 kcs_encode.py input.txt output.wavThis reads the file 'input.txt' and writes a WAV file 'output.wav'. The resulting WAV file is encoded in mono with a framerate of 9600 Hz.To decode a WAV file containing KCS data that you have recorded, do this: % python3 kcs_decode.py input.wavDecoded text contained in the WAV file will be printed to standard output. This decoding process will strip NULL bytes and convert line endings to the native line endings for your platform.If you want to decode raw binary data, type this: % python3 kcs_decode.py -b input.wavIn this case, output is still directed to standard output, but is exactly as found in the audio (including all NULL bytes). Requirements: · Python

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