Recognizing RME UFX+ multi-channels in matlab

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Jihyun Lee 2022-6-22

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https://ww2.mathworks.cn/matlabcentral/answers/1745295-recognizing-rme-ufx-multi-channels-in-matlab

编辑： Simar 2024-1-31

Dear the community,

We are recently setting sound localization system using 27 speakers (9 speakers at azimuth 0 degree and 9 speakers each at azimuth +- 30 degree). To control those speakers, we connected the speakers to the RME UFX+ system.

In the system, 4 cables for 8 channels were used, which makes recognizing 4 different devices in Matlab.

How can I combine those 4 different devices as one device?

Helps would be great appreciated.

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Answer 1

Simar 2024-1-31

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编辑：Simar 2024-1-31

Hi Jihyun Lee,

Based on my understanding you are seeking guidance on combining four recognized devices in MATLAB into a single device for setting sound localization system.

Combining multiple audio interfaces into a single device for use in MATLAB can be challenging because MATLAB typically recognizes each audio interface as a separate device. Consider these approaches to manage multiple audio interfaces as if they were a single device:

Aggregate Audio Device (macOS): If using macOS system, create an Aggregate Device using the Audio MIDI Setup utility. This allows to combine multiple audio interfaces into one virtual device that can be selected within MATLAB. Once the Aggregate Device is set up, access it in MATLAB using “audioplayer” function.
ASIO Drivers (Windows): On Windows systems, some audio interfaces support ASIO drivers, which can sometimes allow multiple interfaces from the same manufacturer to be combined into a single ASIO device. Use the “playrec” function in MATLAB to access the ASIO device.
MATLAB Audio Toolbox: MATLAB's Audio Toolbox provides advanced functionality for audio processing and might offer ways to manage multiple devices.

Please note that the exact method will depend on the operating system, the capabilities of audio interfaces, and specific requirements for synchronization and audio quality. Combining audio interfaces can introduce complexity, especially with synchronization between devices, so it is important to thoroughly test the setup to ensure that audio playback is aligned across all speakers.

Please refer to the documentation links: