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small fft fix which caused problems with waterfall view

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DJ2LS 2022-11-19 09:40:57 +01:00
parent 8913f81b79
commit 85d2f36e36
1 changed files with 2 additions and 5 deletions
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7
tnc/modem.py
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@ -874,7 +874,7 @@ class RF:
# Have to do this when we are not transmitting so our
# own sending data will not affect this too much
if not static.TRANSMITTING:
dfft[dfft > avg + 10] = 100
dfft[dfft > avg + 15] = 100
# Calculate audio dbfs
# https://stackoverflow.com/a/9763652
@ -917,15 +917,12 @@ class RF:
# Check for signals higher than average by checking for "100"
# If we have a signal, increment our channel_busy delay counter
# so we have a smoother state toggle
if np.sum(dfft[dfft > avg + 10]) >= 400 and not static.TRANSMITTING:
if np.sum(dfft[dfft > avg + 15]) >= 400 and not static.TRANSMITTING:
static.CHANNEL_BUSY = True
# Limit delay counter to a maximum of 250. The higher this value,
# the longer we will wait until releasing state
channel_busy_delay = min(channel_busy_delay + 10, 250)
else:
# if transmitting set busy delay to 0 for avoiding too much false positives
if static.TRANSMITTING:
channel_busy_delay = 0
# Decrement channel busy counter if no signal has been detected.
channel_busy_delay = max(channel_busy_delay - 1, 0)
# When our channel busy counter reaches 0, toggle state to False