minor fixes
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@ -16,16 +16,16 @@ is assumed to be acoustic data.
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'sensitivity': (Optionally) the stored sensitivity of the record channels.
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This can be a single value, or a list of sensitivities for
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each channel. Both representations are allowed.
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'qtys' : (Optionally): list of quantities that is recorded for each channel', if
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this array is not found. Quantities are defaulted to 'Number / Full scale'
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'qtys' : (Optionally): list of quantities that is recorded for each channel',
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if this array is not found. Quantities are defaulted to 'Number / Full scale'
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- Datasets:
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'audio': 3-dimensional array of blocks of audio data. The first axis is the
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block index, the second axis the sample number and the third axis is the channel
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number. The data type is either int16, int32 or float64 / float32. If raw data
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is stored as integer values (int16, int32), the actual values should be
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pre-scaled by its maximum positive number (2**(nb-1) - 1), such that the
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block index, the second axis the sample number and the third axis is the
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channel number. The data type is either int16, int32 or float64 / float32. If
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raw data is stored as integer values (int16, int32), the actual values should
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be pre-scaled by its maximum positive number (2**(nb-1) - 1), such that the
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corresponding 'number' lies between -1.0 and 1.0.
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'video': 4-dimensional array of video frames. The first index is the frame
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@ -68,6 +68,7 @@ def getSampWidth(dtype):
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else:
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raise ValueError('Invalid data type: %s' % dtype)
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def scaleBlockSens(block, sens):
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"""Scale a block of raw data to return raw acoustic pressure data.
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@ -315,5 +315,3 @@ class SosOctaveFilterBank(SosFilterBank):
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"""
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self.designer = OctaveBankDesigner(fs)
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SosFilterBank.__init__(self, fs, xmin, xmax)
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@ -114,8 +114,8 @@ def smoothSpectralData(freq, M, sw: SmoothingWidth,
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raise Warning('Check if \'Noct\' is entered correctly')
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assert len(freq) == len(M), 'f and M should have equal length'
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if st == SmoothingType.ps:
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assert np.min(M) >= 0, 'absolute magnitude M cannot be negative'
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# if st == SmoothingType.ps:
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# assert np.min(M) >= 0, 'absolute magnitude M cannot be negative'
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if st == SmoothingType.levels and isinstance(M.dtype, complex):
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raise RuntimeError('Decibel input should be real-valued')
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@ -167,7 +167,7 @@ def smoothSpectralData(freq, M, sw: SmoothingWidth,
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# Calculate window
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g = np.zeros(xu-xl)
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for n, xi in enumerate(range(xl, xu)):
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fi = f[xi] # current frequency
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fi = freq[xi] # current frequency
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g[n] = np.sqrt( 1/ ((1+((fi/fc - fc/fi)*(1.507*Noct))**6)) )
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g /= np.sum(g) # normalize: integral=1
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