Simple if else for buffer speech

Question

Hamzah amee 2014-11-5

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/161375-simple-if-else-for-buffer-speech

回答： Balavignesh 2024-7-3

Hi, how can I display the required answer 'yes' or 'no' for each ZCR calculated on each buffer frame speech?

here is the coding. It only display 1 answer. I suppose to get 23 answers. Please help me.thanks a lot.

X=wavread('speech01_denoised.wav');
N=400;
Y = buffer(X,N);
s=sum(abs(diff(Y>0)))/length(Y);%ZCR
if s<=0
    display('yes')
elseif (s>=0)
    display('no')
end

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Balavignesh 2024-7-3

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/161375-simple-if-else-for-buffer-speech#answer_1480331

在 MATLAB Online 中打开

Hi Hamzah,

As per my understanding, you would like to display 'yes' or 'no' for wach Zero Crossing Rate (ZCR) calculated on each buffer frame of the speech signal. I suggest you iterate through each frame and calculate the 'ZCR' for each iteration. The number of frames is determined by the second dimension of the buffered matrix 'Y'. A 'for' loop iterates through each frame. This code will display 'yes' or 'no' for each of the 23 frames (or however many frames you have), based on the calculated ZCR for each frame.

Here's an example code snippet that could help you understand this better:

% Read the speech signal
[X, fs] = audioread('speech01_denoised.wav');
% Define the frame length
N = 400;
% Buffer the signal into frames
Y = buffer(X, N);
% Number of frames
numFrames = size(Y, 2);
% Loop through each frame to calculate ZCR and display 'yes' or 'no'
for i = 1:numFrames
    frame = Y(:, i);
    zcr = sum(abs(diff(frame > 0))) / length(frame); % Calculate ZCR
    
    if zcr <= 0
        disp(['Frame ', num2str(i), ': yes']);
    else
        disp(['Frame ', num2str(i), ': no']);
    end
end