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equalizer: minor exception handling

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This commit is contained in:
Peter Boraros 2012-12-22 06:09:38 +01:00
parent 2658d670b6
commit 17f589d929
1 changed files with 9 additions and 3 deletions
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8
host_python/equalizer.py
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@ -66,7 +66,7 @@ for k, v in opts:
sys.exit(0) sys.exit(0)
elif k == '-a': elif k == '-a':
try: v = float(v) try: v = float(v)
except: except ValueError:
print 'error: attenuation must be float value' print 'error: attenuation must be float value'
print_usage() print_usage()
ATTENUATION = 10**(v/10) ATTENUATION = 10**(v/10)
@ -148,6 +148,7 @@ def loop( stream ):
elif len(history) < HISTORY_SIZE: continue elif len(history) < HISTORY_SIZE: continue
# obtain input sequence ~~ oohhh what a kind of dimmish magic and windowing # obtain input sequence ~~ oohhh what a kind of dimmish magic and windowing
#TODO: dynamic attenuation based on average power of input signal over timespan, threshold to cut off noise
x = np.concatenate(history*history_diminish)*window/ATTENUATION x = np.concatenate(history*history_diminish)*window/ATTENUATION
# compute power spectral desity using autocarelate approach # compute power spectral desity using autocarelate approach
@ -159,6 +160,7 @@ def loop( stream ):
# integrate energy within bands ~~ oh, oohhh: look at the orthoginality trick # integrate energy within bands ~~ oh, oohhh: look at the orthoginality trick
bands = (freqs>bands[...,:-1]) & (freqs<=bands[...,1:]) bands = (freqs>bands[...,:-1]) & (freqs<=bands[...,1:])
energy = np.round(( bands * psd ).sum(0).squeeze()) energy = np.round(( bands * psd ).sum(0).squeeze())
#energy = np.round(( bands * psd / bands.sum(0) ).sum(0).squeeze())
# write some debug colorfull, very usefull # write some debug colorfull, very usefull
ansicolors = ('\033[30;1m%5.0f\033[0m', '\033[33;1m%5.0f\033[0m', '\033[1;31m%5.0f\033[0m') ansicolors = ('\033[30;1m%5.0f\033[0m', '\033[33;1m%5.0f\033[0m', '\033[1;31m%5.0f\033[0m')
@ -177,4 +179,8 @@ def loop( stream ):
# time.sleep(0.05) # time.sleep(0.05)
if __name__ == '__main__': if __name__ == '__main__':
try:
with_stream(loop) with_stream(loop)
except KeyboardInterrupt:
pass