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This commit is contained in:
furrtek 2016-01-31 09:34:24 +01:00
parent 29ec87a9ad
commit 44638e504b
166 changed files with 8700 additions and 3967 deletions
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8
firmware/baseband/dsp_squelch.hpp
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@ -31,14 +31,14 @@
class FMSquelch {
public:
bool execute(buffer_s16_t audio);
bool execute(const buffer_f32_t& audio);
void set_threshold(const float new_value);
private:
static constexpr size_t N = 32;
static constexpr int16_t threshold = 3072;
float threshold_squared { 0.0f };
// nyquist = 48000 / 2.0
// scipy.signal.iirdesign(wp=8000 / nyquist, ws= 4000 / nyquist, gpass=1, gstop=18, ftype='ellip')
IIRBiquadFilter non_audio_hpf { non_audio_hpf_config };
};