Microphone not recognized by daq.getDevices()

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Simon Jones
Simon Jones . 2019년 4월 7일
답변: Gabriele Bunkheila . 2019년 4월 8일
I would like to set up a Continuous Audio Data display as described here:
I am attempting to use my built-in microphone, but no devices are recognized:
however it appears the device is visible via SimuLink:
Do you have any advice on what can be done to recognize the microphone?
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Walter Roberson
Walter Roberson 2019년 4월 7일
Did you install the DirectSound audio support package?
Simon Jones
Simon Jones 2019년 4월 7일
Thanks for the tip Walter! It wasn't that exactly, but it lead me to the Data Acquisition Toolbox Support Package for Windows Sound Cards:
Everything seems to be working as expected now.

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Gabriele Bunkheila
Gabriele Bunkheila 2019년 4월 8일
Hi Simon,
I have just noticed your question – since I work on Audio Toolbox I thought I'd drop you a line.
If you work with audio inputs on a regular basis, you may want to consider using audioDeviceReader in MATLAB too. The benefits on top of my head include:
  • Support for low-latency drivers across the three supported OS ASIO for Windows, CoreAudio for MacOS, ALSA for Linux. Depending on the sound card and the OS, that could mean down to 3-5ms of round-trip latency
  • Support for synchronous acquisition of multiple channels in parallel multiple-channel sound card are usually unsupported by the standard plug & play drivers except for the first two channels
  • Designed (in C++) to execute fast
  • Offers a System object interface for continuous streaming, which MATLAB users find simpler than callback-based patterns based on my experience (as in requiring fewer lines of code and less advanced MATLAB expertise)
Good luck with your project!

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