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use specific exception for saturation

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Roman Zeyde
2014-07-21 13:41:52 +03:00
parent cb4831c273
commit 223e38a75f
1 changed files with 7 additions and 2 deletions
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9
common.py
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@@ -42,6 +42,10 @@ def to_byte(bits):
return chr(byte) return chr(byte)
class SaturationError(ValueError):
pass
def load(fileobj, time=False): def load(fileobj, time=False):
return loads(fileobj.read(), time=time) return loads(fileobj.read(), time=time)
@@ -49,8 +53,9 @@ def load(fileobj, time=False):
def loads(data, time=False): def loads(data, time=False):
x = np.fromstring(data, dtype='int16') x = np.fromstring(data, dtype='int16')
x = x / scaling x = x / scaling
if np.max(np.abs(x)) > SATURATION_THRESHOLD: peak = np.max(np.abs(x))
raise ValueError('saturation') if peak > SATURATION_THRESHOLD:
raise SaturationError(peak)
if time: if time:
t = np.arange(len(x)) / Fs t = np.arange(len(x)) / Fs