Impulse Response Measurer audio device

Hi,

the problem concerns ImpulseResponseMeasurer that does not correctly identify the audio devices connected to my mac book.

If I run adiodevinfo:

A=audiodevinfo

ans = 

  struct with fields:

     input: [1×3 struct]
    output: [1×6 struct]
    
A.input.Name

ans =

    'USB AUDIO  CODEC (Core Audio)'


ans =

    'Microfono MacBook Pro (Core Audio)'


ans =

    'Microsoft Teams Audio (Core Audio)'

But in ImpulseResponseMeasurer the only available device is Microsoft Teams Audio

Is there a way to tell to ImpulseResponseMeasurer to use a different I/O device (i.e. USB AUDIO CODEC)?

Thanks in advance

[Jimmy Lapierre]

Could you also list the output names?

[DavidePiccinini]

Hi Jimmi

this is the result

A=audiodevinfo
A = 

  struct with fields:

     input: [1×3 struct]
    output: [1×6 struct]
    
A.output.Name

ans =

    'E4.5BT (Core Audio)'

ans =

    '216KKMR (Core Audio)'

ans =

    'USB AUDIO  CODEC (Core Audio)'

ans =

    'Cuffie esterne (Core Audio)'

ans =

    'Altoparlanti MacBook Pro (Core Audio)'

ans =

    'Microsoft Teams Audio (Core Audio)'

[Jimmy Lapierre]

May I ask what the device is? Does it show up in the command window if you try this?

>> getAudioDevices(audioPlayerRecorder)'

[DavidePiccinini]

The USB AUDIO CODEC device is an external sound card built into a small multitrack mixer that I connect to my Mac via USB to record analog instruments.

This is the result of the command:

getAudioDevices(audioPlayerRecorder)

ans =

  1×2 cell array

    {'Default'}    {'Microsoft Teams Audio'}

[Jimmy Lapierre]

I'm trying to figure out if that device supports full duplex (simultaneous input and output at a common sample rate). Is the USB AUDIO CODEC showing up in the outputs a different device (ex: DAC)?

[Jim]

I am having the same problem, R2025b, macOS 26.3, impulseResponseMeasurer only lists the MS Teams audio device. My Mac audio settings list Scarlett Solo USB audio and Macbook Air Speakers as available output devices.

Jim

>> A = audiodevinfo

A = 

  struct with fields:

     input: [1×3 struct]
    output: [1×2 struct]

>> A.output.Name

ans =

    'MacBook Air Speakers (Core Audio)'


ans =

    'Microsoft Teams Audio (Core Audio)'

>> A.input.Name

ans =

    'iPhone12 Microphone (Core Audio)'


ans =

    'MacBook Air Microphone (Core Audio)'


ans =

    'Microsoft Teams Audio (Core Audio)'

>> 

[Jim]

Well, it seems restarting MATLAB R2025b solved the problem and I can see my Scarlett Solo USB in the Capture Device list now.

Jim