Stereo sound doesn't behave as expected

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chewkaisheng
chewkaisheng on 30 May 2012
[road,fs]=wavread('road.wav'); % loads “the long and winding road” clip
left=road(:,1);
right=road(:,2);
soundsc(left,fs) % plays left channel as mono
soundsc(right,fs) % plays right channel mono
Why the sound doesn't divided into left channel (Left ear) and right Channel (right ear) ?
  2 Comments
Thomas
Thomas on 30 May 2012
Do you mean, when you play soundsc(left,fs) it should only come from the left speaker?
chewkaisheng
chewkaisheng on 30 May 2012
yup:)
how to if just the sound come from the only left speaker or only the right speaker??

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Answers (2)

Thomas
Thomas on 30 May 2012
MAybe you need something like this
[road,fs]=wavread('road.wav');
pad=zeros(length(road),1); % blank channel
left=[road(:,1),pad]; % add blank channel so right is silent
right=[pad,road(:,2)]; % add blank channel so left is silent
soundsc(left,fs) % sound only from left
soundsc(right,fs) % sound only from right
  5 Comments
Walter Roberson
Walter Roberson on 30 May 2012
http://www.answerbag.com/q_view/2147756
chewkaisheng
chewkaisheng on 31 May 2012
Thomas Anthony and Walter Roberson
Thank you so much !!!! :)
have a nice day!

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Walter Roberson
Walter Roberson on 30 May 2012
When you soundsc() a single column of data, it is sent to both channels. Notice there is no possibility to select whether you are sending to left channel or to right channel when you soundsc()
hint:
soundsc( [left, zeros(size(left))], fs)
  1 Comment
chewkaisheng
chewkaisheng on 30 May 2012
so, is there any possible suing other command to send it to left or right only?
Thanks!!

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