openwebrx-clone/csdr/chain/fm.py

19 lines
516 B
Python

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