transform_sliding_window_cmn: sliding-window Cepstral Mean Normalization

In torchaudio: R Interface to 'pytorch''s 'torchaudio'

sliding-window Cepstral Mean Normalization

Description

Apply sliding-window cepstral mean (and optionally variance) normalization per utterance.

Usage

transform_sliding_window_cmn(
  cmn_window = 600,
  min_cmn_window = 100,
  center = FALSE,
  norm_vars = FALSE
)

Arguments

cmn_window	(int, optional): Window in frames for running average CMN computation (int, default = 600)
min_cmn_window	(int, optional): Minimum CMN window used at start of decoding (adds latency only at start). Only applicable if center == FALSE, ignored if center==TRUE (int, default = 100)
center	(bool, optional): If TRUE, use a window centered on the current frame (to the extent possible, modulo end effects). If FALSE, window is to the left. (bool, default = FALSE)
norm_vars	(bool, optional): If TRUE, normalize variance to one. (bool, default = FALSE)

Details

forward param: waveform (Tensor): Tensor of audio of dimension (..., time).

Value

Tensor: Tensor of audio of dimension (..., time).

torchaudio documentation built on Feb. 16, 2023, 9:41 p.m.