MOTU UltraLite MK3 ASIO problem in MATLAB

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Ajay Kumar
Ajay Kumar 2011-9-21
评论： Walter Roberson 2017-2-16
I have been using a 10x10 channel Roland Octa-capture. Due to frequency non-linearity I had to switch to MOTU UltraLite MK3. I have been trying to get it work with Matlab, but, with not much luck.
The device works fine with Adobe Audition. But, in Matlab, it doesn't work.
It is a 12x10 channel device. Using playrec('getDevices'), I see it as a 14x14 device. I wonder if anyone encountered the same problem. I would greatly appreciate any help in this regard.

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回答（3 个）

Walter Roberson
Walter Roberson 2011-9-21
I am not sure what you mean by "12x10" and "14x14", but I do see in the documentation that the Hybrid version (which seems to be the only one available now) has 10 channels of input and 14 channels of output.
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Ajay Kumar
Ajay Kumar 2011-9-21
This is the windows manual for the device:
http://cdn-data.motu.com/manuals/firewire-usb-audio/UltraLite-mk3_Hybrid_Win.pdf
Walter Roberson
Walter Roberson 2011-9-21
Okay, so the current problem is that playrec('getDevices') is reporting 14 inputs even though there are only 10? Is that interfering with use of the device?

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Darel
Darel 2013-11-13
Ajay, ASIO devices are supported in the DSP System Toolbox using dsp.AudioRecorder and dsp.AudioPlayer in MATLAB or To Audio Device and From Audio Device blocks in Simulink. You just have to go to MATLAB preferences and select ASIO as your Audio Hardware API on the DSP System Toolbox tab of the preferences. There is no limit on the number of channels and channel mapping is supported (working with a subset of available channels).
Gloria Helena Munera
编辑：Walter Roberson 2017-2-16
How to send an audio file to different channels of an audio interface Motu ultralite mk3 in matlab 2016a on windows
I used this code
X = uigetfile;
[Aw, fs] = audioread (x);
Player = audioplayer (aw, fs, 24);
Play (player)
Every time you play audioplayer (aw, fs, 24, id);
Error using audioplayer (line 223)
Could not find the specified device
Error in pru (line 10)
Player = audioplayer (aw, fs, 24.2);
Use info = dspAudioDeviceInfo to know my card ID
Please help! With examples
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Walter Roberson
Walter Roberson 2017-2-16
You appear to be trying to mix dsp ASIO device information with audioplayer() which is not for DSP work. You should be using AudioDeviceWriter or dsp.AudioPlayer

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