Function logmelspectrogram

espnet2/legacy/transform/spectrogram.py:100–126

Obtain Logmel from signal.

(
    x,
    fs,
    n_mels,
    n_fft,
    n_shift,
    win_length=None,
    window="hann",
    fmin=None,
    fmax=None,
    eps=1e-10,
    pad_mode="reflect",
)

def logmelspectrogram(
    x,
    fs,
    n_mels,
    n_fft,
    n_shift,
    win_length=None,
    window="hann",
    fmin=None,
    fmax=None,
    eps=1e-10,
    pad_mode="reflect",
):
    """Obtain Logmel from signal."""
    # stft: (Time, Channel, Freq) or (Time, Freq)
    x_stft = stft(
        x,
        n_fft=n_fft,
        n_shift=n_shift,
        win_length=win_length,
        window=window,
        pad_mode=pad_mode,
    )

    return stft2logmelspectrogram(
        x_stft, fs=fs, n_mels=n_mels, n_fft=n_fft, fmin=fmin, fmax=fmax, eps=eps
    )


class Spectrogram(object):