Is sampling rate 384kHz through direct sound playable in MATLAB?

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哲史伊藤 2023-5-10

I am trying to produce ultrasound through a directsound soundcard (radius RK-DA60C), which supports 384kHz sampling rate.

Using other softwares like Audacity, I confirmed with an oscilloscope that 120kHz sine wave is playable.

However, it is not successful in MATLAB.

First, I used Data Acquisiion Toolbox and it reported an error "Rate cannot exceed 192000 in the current configuration."

Next, I used audioplayer function in MATLAB like,

a=rand(192000,1)-0.5;
pl=audioplayer(a,384000,16,6) % Device ID is 6
play(pl)

and got "Device Error: Unanticipated host error"

When I reduce the sampling rate,

pl=audioplayer(a,192000,16,6)

Player worked correctly.

Does anyone know whether the 384kHz sampling rate is supported or not?

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R2021b

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