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comparison Example VamPy plugins/PyMFCC.py @ 67:146d14ab15e7

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Debug output: off by default, on with VAMPY_VERBOSE environment variable
author Chris Cannam
date Mon, 17 Nov 2014 10:03:44 +0000
parents d56f48aafb99
children 44d56a3d16b7
comparison
equal deleted inserted replaced
66:5664fe298af2 67:146d14ab15e7
50 # make sure this will run only once 50 # make sure this will run only once
51 # if called from a vamp process 51 # if called from a vamp process
52 if self.updated: return self.valid 52 if self.updated: return self.valid
53 self.updated = True 53 self.updated = True
54 self.valid = False 54 self.valid = False
55 print 'Updating parameters and recalculating filters: ' 55 # print 'Updating parameters and recalculating filters: '
56 print 'Nyquist: ',self.NqHz 56 # print 'Nyquist: ',self.NqHz
57 57
58 if self.maxHz > self.NqHz : 58 if self.maxHz > self.NqHz :
59 raise Exception('Maximum frequency must be smaller than the Nyquist frequency') 59 raise Exception('Maximum frequency must be smaller than the Nyquist frequency')
60 60
61 self.maxMel = 1000*log(1+self.maxHz/700.0)/log(1+1000.0/700.0) 61 self.maxMel = 1000*log(1+self.maxHz/700.0)/log(1+1000.0/700.0)
62 self.minMel = 1000*log(1+self.minHz/700.0)/log(1+1000.0/700.0) 62 self.minMel = 1000*log(1+self.minHz/700.0)/log(1+1000.0/700.0)
63 print 'minHz:%s\nmaxHz:%s\nminMel:%s\nmaxMel:%s\n' \ 63 # print 'minHz:%s\nmaxHz:%s\nminMel:%s\nmaxMel:%s\n' \
64 %(self.minHz,self.maxHz,self.minMel,self.maxMel) 64 # %(self.minHz,self.maxHz,self.minMel,self.maxMel)
65 self.filterMatrix = self.getFilterMatrix(self.inputSize,self.numBands) 65 self.filterMatrix = self.getFilterMatrix(self.inputSize,self.numBands)
66 self.DCTMatrix = self.getDCTMatrix(self.numBands) 66 self.DCTMatrix = self.getDCTMatrix(self.numBands)
67 self.filterIter = self.filterMatrix.__iter__() 67 self.filterIter = self.filterMatrix.__iter__()
68 self.valid = True 68 self.valid = True
69 return self.valid 69 return self.valid
122 class PyMFCC(melScaling): 122 class PyMFCC(melScaling):
123 123
124 def __init__(self,inputSampleRate): 124 def __init__(self,inputSampleRate):
125 125
126 # flags for setting some Vampy options 126 # flags for setting some Vampy options
127 self.vampy_flags = vf_DEBUG | vf_ARRAY | vf_REALTIME 127 self.vampy_flags = vf_ARRAY | vf_REALTIME
128 128
129 self.m_inputSampleRate = int(inputSampleRate) 129 self.m_inputSampleRate = int(inputSampleRate)
130 self.m_stepSize = 1024 130 self.m_stepSize = 1024
131 self.m_blockSize = 2048 131 self.m_blockSize = 2048
132 self.m_channels = 1 132 self.m_channels = 1