Sending signals to two channels of soundcard

1 次查看（过去 30 天）

seme 2013-9-9

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/86708-sending-signals-to-two-channels-of-soundcard

Dear all

What function do I have to use to send a signal in one channel and the delayed version in the other channel? Or any suggestion on sending the signals to two different channels

Thank you

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。

回答（1 个）

Walter Roberson 2013-9-9

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/86708-sending-signals-to-two-channels-of-soundcard#answer_96256

We cannot answer that question without information about your soundcard (built-in? attached to a DAQ? model?), and about what you mean by "channel" in this instance (left vs right?), and about whether you have the Data Acquisition toolbox.

We asked for that information in your previous question but you closed the question instead of providing the information.

3 个评论
显示 1更早的评论隐藏 1更早的评论

Walter Roberson 2013-9-10

See http://www.mathworks.com/help/daq/examples/generation-of-audio-using-the-sound-card.html

then it becomes your responsibility to ensure that the columns of data that you put to the channels are offset by the number of samples that comprise the delay.

Note: if the delay is not an exact multiple of the channel period (that is, 1 divided by the frequency), then you will need to use a fractional delay calculation, which is a bit of a nuisance.

seme 2013-9-10