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Cønverting yøur audiø files

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Møffenzeef Mødular edited this page Nov 6, 2016 · 10 revisions

Taken directly from TechnoBlogy Tutorial

Extract the raw audio data

The WAV file format contains a 44-byte header followed by the raw data. On a Mac or Unix computer you can dump the data in a C-friendly text format using the built-in xxd command in a Terminal window:

Copy the audio file into your home directory. Open the Terminal application. Type the following command, substituting the name of your WAV file: xxd -i -s +44 quack.wav The -i parameter tells xxd to output the data in C include format, and the -s parameter specifies an offset to omit the first 44 bytes of the file. The output will look something like:

unsigned char quack_wav[] = { 0x7d, 0x7c, 0x7e, 0x7e, 0x7d, 0x7b, 0x7b, 0x7c, 0x7c, 0x7e, 0x7f, 0x7f, 0x81, 0x83, 0x84, 0x86, 0x88, 0x8a, 0x8b, 0x8c, 0x88, 0x7f, 0x76, 0x6f, ... 0x82, 0x7f, 0x80 }; unsigned int quack_wav_len = 1467; It also gives you a variable containing the length of the data, which we will use to detect the end of the audio.

Abøut

        MSG
  by: Ross Fish 2016
  Møffenzeef Mødular 
moffenzeefmodular.com
     CC-BY-NC-SA

Examples

  1. Granular Audiø Example
  2. Phase Distørtiøn Audiø Example
  3. Amplitude Mødulatiøn Audiø Example
  4. Frequency Mødulatiøn Audiø Example

The Guts øf MSG

  1. BØM
  2. Schematic
  3. Source Code

Assembly Instructiøns

  1. READ THIS FIRST
  2. Inspect and verify yøur kit
  3. Pøpulate PCB
  4. Battery Clip
  5. Final Assembly

Flashing Firmware tø MSG

  1. Dependencies
  2. Cønnecting Tiny AVR prøgrammer
  3. Høw tø reprøgram MSG

Getting Yøur Øwn Samples intø MSG

  1. READ BEFØRE YØU START
  2. Preparing yøur audiø files
  3. Cønverting yøur audiø files
  4. Placing audiø files intø code

Additiønal Infø

  1. Credits
  2. Repørt issues here
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