ChannelMappingSource property problem in dsp.AudioRecorder

Question

Daniel Jimenez 2014-3-5

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/120222-channelmappingsource-property-problem-in-dsp-audiorecorder

评论： Daniel Jimenez 2014-3-13

Hi, I'm trying to use the functions dsp.AudioRecorder and dsp.Audioplayer for performing multichannel playback and record. I'm having an issue when I try to manually do the mapping of the channels for these functions

I'm declaring:

har = dsp.AudioRecorder;

and then setting:

set(har,'ChannelMappingSource','Property')

but i keep getting the following error

No public field ChannelMappingSource exists for class dsp.AudioRecorder.
Error in C:\Program Files\MATLAB\R2013a\toolbox\matlab\system\+matlab\+system\setProp.p>setProp
(line 14)
Error in C:\Program
Files\MATLAB\R2013a\toolbox\matlab\system\+matlab\+system\SystemProp.p>SystemProp.set (line 437)

Can anyone please help me figure out what I'm doing wrong?

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Answer 1

Daniel Jimenez 2014-3-13

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https://ww2.mathworks.cn/matlabcentral/answers/120222-channelmappingsource-property-problem-in-dsp-audiorecorder#answer_128287

I just found out that this can only be done in version 2013b not my 2013a student version... hopefully it will be included in the next release!

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Daniel Jimenez 2014-3-13

As a workaround this issue I've decided to record all channels. For example if I want to only get the audio recorded in channel 5 of my interface, I'm setting up the dsp.AudioRecorder object to record 5 channels and then storing the signal acquired in the fifth column of the variable used for storing the information.

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