update docs

speech_asr

2023-02-15 bf1a3ff4d1d96b8b1f399a67ee8ee8d985cc99aa

 funasr/models/frontend/wav_frontend.py

@@ -171,10 +171,7 @@
                              window_type=self.window,
                              sample_frequency=self.fs)

            # if self.lfr_m != 1 or self.lfr_n != 1:
            #     mat = apply_lfr(mat, self.lfr_m, self.lfr_n)
            # if self.cmvn_file is not None:
            #     mat = apply_cmvn(mat, self.cmvn_file)

            feat_length = mat.size(0)
            feats.append(mat)
            feats_lens.append(feat_length)