Parameter name `waveform` in `SlidingWindowCmn` does not match parameter name `specgram` in `F.sliding_window_cmn`

[Bomme]

🐛 Describe the bug

transforms.SlidingWindowCmn is basically a wrapper around functional.sliding_window_cmn.

    def forward(self, waveform: Tensor) -> Tensor:
        r"""
        Args:
            waveform (Tensor): Tensor of audio of dimension `(..., time)`.
        Returns:
            Tensor: Tensor of audio of dimension `(..., time)`.
        """
        cmn_waveform = F.sliding_window_cmn(
            waveform, self.cmn_window, self.min_cmn_window, self.center, self.norm_vars)
        return cmn_waveform

In #1347 the parameter name for functional.sliding_window_cmn was changed from waveform to specgram. transforms.SlidingWindowCmn was not updated.

I guess, SlidingWindowCmn should be updated accordingly. This would be a breaking change.

Versions

torchaudio 0.9.1

[nateanl]

Thanks for pointing this out! Indeed we need to change the waveform to specgram accordingly. I can help fix it and merge it to main branch.

[nateanl]

Close by #1859