test_acousticfeature.py 文件源码

def test_synthesis_from_codeap(self):
        path = dirpath + '/data/test16000.wav'
        fs, x = wavfile.read(path)
        af = FeatureExtractor(analyzer='world', fs=fs, shiftms=5)
        f0, spc, ap = af.analyze(x)
        codeap = af.codeap()

        assert len(np.nonzero(f0)[0]) > 0
        assert spc.shape == ap.shape

        assert pyworld.get_num_aperiodicities(fs) == codeap.shape[-1]
        ap = pyworld.decode_aperiodicity(codeap, fs, 1024)

        synth = Synthesizer(fs=fs, fftl=1024, shiftms=5)
        wav = synth.synthesis_spc(f0, spc, ap)
        nun_check(wav)