Real Time Audio Processing: audioDeviceReader 'Driver' not working

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Jian Jia Tan 2018-10-26

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https://ww2.mathworks.cn/matlabcentral/answers/426204-real-time-audio-processing-audiodevicereader-driver-not-working

评论： Abdullah Kucuk 2021-12-22

Im using Fireface UC audio interface.

setpref('dsp', 'portaudioHostApi', 3)
deviceReader = audioDeviceReader('Driver', 'ASIO', 'Device', 'ASIO Fireface USB', 'SampleRate', 48000);
deviceWriter = audioDeviceWriter('Driver', 'ASIO', 'Device', 'ASIO Fireface USB', 'SampleRate', 48000, 'BufferSize', 1024);

when I enable ASIO driver for eg in the above code, there is no output sound.

However when ASIO driver is not enabled, for eg in the following code, there is real time output sound, but there is noticeable latency.

setpref('dsp', 'portaudioHostApi', 3);
deviceReader = audioDeviceReader('Device', 'Analog (1+2) (RME Fireface UC)', 'SampleRate', 48000);
deviceWriter = audioDeviceWriter('Device', 'Analog (3+4) (RME Fireface UC)', 'SampleRate', 48000, 'BufferSize', 1024);