ADPCM knowledge required
Does anyone here know their way around ADPCM encoders? I could need someone with knowledge in that area, as I need to implement an ADPCM encoder, but I have literally no idea how to create the limited set of coefficients.
The format is a 3-sample-history ADPCM, where each frame has 32 samples. Per frame you select one of max 32 coefficient-triplets, apply them to the 3-sample-history to get a predicted value and then add your current sample to it.
I have no idea how to calculate those coefficients in the ncoding step.
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