How to resolve the Error using ==> mtimes Inner matrix dimensions must agree?

1 次查看（过去 30 天）

Anurag Pujari 2013-3-30

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/69227-how-to-resolve-the-error-using-mtimes-inner-matrix-dimensions-must-agree

% Magnitude spectrum computation (as column vectors)
MAG = abs( fft(frames,nfft,1) ); 
% Triangular filterbank with uniformly spaced filters on mel scale
H = trifbank( M, K, R, fs, hz2mel, mel2hz ); % size of H is M x K 
% Filterbank application to unique part of the magnitude spectrum
FBE = H*MAG(1:K,:); % FBE( FBE<1.0 ) = 1.0; % apply mel floor
Error using ==> mtimes
Inner matrix dimensions must agree.
Error in ==> new at 41
    FBE = H*MAG(1:K,:); % FBE( FBE<1.0 ) = 1.0; % apply mel floor

3 个评论
显示 1更早的评论隐藏 1更早的评论

Anurag Pujari 2013-3-31

在 MATLAB Online 中打开

It shows the following: 23 2049

256 1534

M = 20 K =129

Walter Roberson 2013-3-31

The code H*MAG(1:K,:) is assuming that the second dimension of H should be length K, but clearly it is not.

trifbank is not a built-in MATLAB routine. Did you download one of the implementations from the File Exchange? If so then you are going to have to debug why it is not returning matrices of width K.

请先登录，再进行评论。

请先登录，再回答此问题。