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Change baseband floats to normalize at +/-1.0.

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Jared Boone
2016-02-14 12:38:50 -08:00
parent a5ed3b20b4
commit ef86848139
10 changed files with 35 additions and 26 deletions
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3
firmware/baseband/audio_compressor.cpp
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@@ -40,8 +40,7 @@ float GainComputer::operator()(const float x) const {
void FeedForwardCompressor::execute_in_place(const buffer_f32_t& buffer) {
constexpr float makeup_gain = std::pow(10.0f, (threshold - (threshold / ratio)) / -20.0f);
for(size_t i=0; i<buffer.count; i++) {
// TODO: Terrible hack here due to not normalizing float samples to +/-1.0.
buffer.p[i] = execute_once(buffer.p[i] * (1.0f / 32768.0f)) * (makeup_gain * 32768.0f);
buffer.p[i] = execute_once(buffer.p[i]) * makeup_gain;
}
}