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Use documented MFCC output formats in Python example #341

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Use documented MFCC output formats in Python example #341

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8 changes: 5 additions & 3 deletions PythonWrapper/examples/testmfcc.py
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Original file line number Diff line number Diff line change
Expand Up @@ -98,7 +98,8 @@ def test_mfcc_q31(self):
errorStatus,resQ31=dsp.arm_mfcc_q31(mfccq31,debugQ31,tmp,tmp2=tmp2)
else:
errorStatus,resQ31=dsp.arm_mfcc_q31(mfccq31,debugQ31,tmp)
res=self.FFTSize*Q31toF32(resQ31)
# arm_mfcc_q31 returns q8.23 values.
res=resQ31 / float(1 << 23)

assert_allclose(res,ref,4e-5,4e-5)

Expand Down Expand Up @@ -140,7 +141,8 @@ def test_mfcc_q15(self):
errorStatus,resQ15=dsp.arm_mfcc_q15(mfccq15,debugQ15,tmp,tmp2=tmp2)
else:
errorStatus,resQ15=dsp.arm_mfcc_q15(mfccq15,debugQ15,tmp)
res=self.FFTSize*Q15toF32(resQ15)
# arm_mfcc_q15 returns q8.7 values.
res=resQ15 / float(1 << 7)

assert_allclose(res,ref,3e-3,1e-2)

Expand All @@ -152,4 +154,4 @@ def test_mfcc_q15(self):
self.assertEqual(mfccq15.nbDctOutputs(),self.numOfDctOutputs)

if __name__ == '__main__':
unittest.main()
unittest.main()