openwebrx-clone/csdr/chain/fm.py

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from csdr.chain import Chain
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from pycsdr.modules import FmDemod, Limit, NfmDeemphasis, Agc, Convert
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from pycsdr.types import Format, AgcProfile
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class Fm(Chain):
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def __init__(self, sampleRate: int):
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agc = Agc(Format.FLOAT)
agc.setProfile(AgcProfile.SLOW)
agc.setMaxGain(3)
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workers = [
FmDemod(),
Limit(),
NfmDeemphasis(sampleRate),
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agc,
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Convert(Format.FLOAT, Format.SHORT),
]
super().__init__(*workers)