54 lines
1.3 KiB
C++
54 lines
1.3 KiB
C++
//======================================================================
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// tx_audio_proc.ino
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//
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// Classes/functions for processing transmit audio.
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//======================================================================
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#include "tx_audio_proc.h"
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SpeechCompressor::SpeechCompressor(AudioEffectCompressor& comp, AudioAmplifier& amp, AudioAnalyzeRMS& rms):
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_compress(comp), _amp(amp), _rms(rms)
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{
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}
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//void SpeechCompressor::config(AudioEffectCompressor* comp, AudioAnalyzeRMS* rms)
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//{
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// _compress = comp;
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// _rms = rms;
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//}
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bool SpeechCompressor::isEnabled() const
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{
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return _enabled;
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}
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void SpeechCompressor::enable()
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{
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_enabled = true;
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_compress.begin(1, 0.1, 20); // Need to make configurable
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_amp.gain(2.0);
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}
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void SpeechCompressor::disable()
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{
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_enabled = false;
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_compress.disable();
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_amp.gain(1.0);
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}
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// Speech compressor code based on post by 'hyperdyne': https://forum.pjrc.com/threads/36245-Changing-Pitch-of-Voice
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void SpeechCompressor::update()
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{
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float rms_cur;
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if (_enabled && _rms.available()) {
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rms_cur = _rms.read();
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_env = rms_cur + (_alpha * (_env - rms_cur));
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_compress.update_pwr(_env);
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}
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}
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//======================================================================
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// EOF
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//======================================================================
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