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Danamule
User level: Level 1 (4 points)

M1 Mac mini not detecting audio input from USB sound card

How do I get analog audio into my M1 Mac Mini using a sound card? I want to digitize some music from vinyl. I got a USB sound card and have plugged it in. It is recognized as USB Audio device in Settings. WavePad also recognizes it, but doesn't detect any sound coming from it. I confirmed that the sound is coming through the wire up to the stereo mini plug where I plug it into the sound card.

Maybe it's some box I'm neglecting to check in WavePad. I used to do this easily, using Sound Studio on my previous Mini that had an audio input port.

Tahoe 26.6.2

M1 Mac Mini 2020

Posted on Oct 31, 2026 3:33 PM

2 replies

kaz-k
User level: Level 9 (53,902 points)

Nov 1, 2026 9:14 AM in response to Danamule

Hi,

To fix an M1 Mac mini that is not detecting audio input from a USB sound card, you need to check your macOS sound settings, privacy permissions, and physical USB connections.

1. Check macOS Sound Input Settings

Your Mac might not be routing the input to the USB device automatically.


  • Open the Apple menu and go to System Settings (or System Preferences).
  • Click on Sound in the sidebar.
  • Go to the Input tab.
  • Look for your USB sound card in the list and click it to select it as the active input device. Speak into the connected microphone to see if the input level meter moves.

2. Check Microphone Privacy Permissions

macOS requires explicit app permission to access external audio input devices.


  • Go to System Settings > Privacy & Security (or Security & Privacy > Privacy).
  • Click on Microphone.
  • Ensure the toggle is turned on for the specific application (like Zoom, Audacity, or your DAW) that is trying to use the audio input.

3. Check Audio MIDI Setup

Sometimes the sample rate or device configuration gets stuck.


  • Open Finder, go to Applications > Utilities, and open Audio MIDI Setup.
  • Look for your USB sound card in the left sidebar.
  • Select it, and make sure the input format is set to a standard sample rate (like 44100 Hz or 48000 Hz) and that the input channels are not muted.

4. Bypass USB Hubs and Test Connections

Power delivery or data routing through unpowered hubs can cause USB audio failure.


  • Unplug the USB sound card and plug it directly into one of the Mac mini USB ports, avoiding external passive USB hubs.
  • Restart your Mac mini to clear temporary USB or core audio glitches.


TheLittles
User level: Level 10 (211,627 points)

Oct 31, 2026 5:11 PM in response to Danamule

"M1 Mac mini not detecting audio input from USB sound card: [...]Maybe it's some box I'm neglecting to check in WavePad. I used to do this easily, using Sound Studio on my previous Mini that had an audio input port. Tahoe 26.6.2 M1 Mac Mini 2020"

-------


Audio Input Muted:


A. Go Here: Change the Sound Output Settings on Mac - Apple Support


B. See How this is Connected:

  1. Hold Down: option key
  2. Select: System Information
  3. Extend: Hardware
  4. Click: Audio
  5. Click: USB


B. Verify Compatibility:

Not familiar with WavePad, but verify that is is compatible with your Mac. Go into the hardware manufacturer's Web site, and see if you need to install software to get this to work. Drivers are needed for printers to be operable --but not always audio devices.


Originally posted at discussions.apple.com/thread/256386663