Set 96 kHz in Audio MIDI Setup on a Mac

What setting 96 kHz actually does

Audio MIDI Setup is the macOS utility that shows each connected audio device and lets you choose its sample rate and bit depth. 96 kHz means the device is clocked at 96,000 samples per second. If the selected device reports that rate, you can choose 96.0 kHz in the Format menu so macOS and the hardware share that clock. If the rate is not in the menu, the device is not offering it, and the Mac cannot force it.

This is a device format setting, not a video-call quality slider and not a guarantee that a camera, browser, or meeting app will record or play at 96 kHz. Input and output can be set separately. A microphone can appear in the list, show input meters, and still be running at 48 kHz or 44.1 kHz. Built-in speakers and mics often stop at 48 kHz. USB interfaces, recorders, and some external mics are the devices that commonly list 96 kHz.

How to choose 96 kHz

• Open Audio MIDI Setup from Applications, then Utilities, or search for it with Spotlight.
• Select the device in the left sidebar, not a system aggregate unless you created one on purpose.
• Use the Format control for Input, Output, or both, depending on which path you need at 96 kHz.
• Choose 96.0 kHz and a bit depth the device lists, commonly 24-bit when it is available.
• Leave Clock Source on the device itself unless you are syncing several units to one master clock.
• Quit and reopen any call, browser, or recording app that was already using that device so it picks up the new format.

The Format menu is the source of truth for that session. macOS Sound settings can still show the same device as the default input or output while the actual sample rate lives in Audio MIDI Setup. After a change, speak or play a short tone and watch the input or output level meters in Audio MIDI Setup. A moving meter means the device is passing signal at the selected format. It does not by itself mean a call will sound clear, or that the far end is receiving 96 kHz audio.

If 96 kHz does not appear

• Confirm the correct device is selected. A webcam mic, Bluetooth headset, and a USB interface are separate devices with separate rate lists.
• Wake or reconnect the hardware, then click the device again. Some units only report high rates after they finish enumerating.
• Check that another app has not exclusively locked the device at a lower rate. Close that app and look at Format again.
• Match input and output when an app opens both sides of the same device. A 96 kHz input paired with a 48 kHz output is a common source of crackle, silence, or a greyed-out Format menu.
• Treat Bluetooth and many built-in mics as 48 kHz-class devices. Absence of 96 kHz there is a hardware limit, not a hidden checkbox.

There is no supplied device list here for which Mac models, webcams, or microphones advertise 96 kHz. Use the Format menu on the unit you have. If 96 kHz never appears after a reconnect and with other apps closed, that device does not expose the rate to macOS.

Calls, recording, and mixed rates

Meeting apps and browsers typically capture and send far below 96 kHz, often at 48 kHz or a compressed voice rate. Setting Audio MIDI Setup to 96 kHz can still matter when the same interface is used for local recording, or when an app refuses to start because input and output clocks disagree. It does not by itself sharpen a webcam picture, grant camera permission, or replace a physical backdrop, a virtual call background, or an edited still-photo background. Those are separate controls.

If the goal is a video call, prefer a rate both the mic and the speakers share, usually 48 kHz, then confirm in the call’s audio picker that the same device is selected. If the goal is a 96 kHz recording, set both directions of that interface to 96 kHz before you arm the recorder, and keep any conferencing app closed so it cannot pull the device back down. Distorted, slow, or chipmunk playback after a change usually means one program is still running at 44.1 kHz or 48 kHz against a 96 kHz device clock; set every open app to the same rate or restart them.

What to do next

Set 96 kHz only on a device that lists it, keep input and output matched, then relaunch the app that will use the device. If 96 kHz is missing, the next action is to use a device that reports that rate, or to stay at the highest shared rate the current hardware shows. Audio MIDI Setup will not raise a webcam’s video sample rate, restore a blocked camera or microphone permission, or prove that far-end call audio is intelligible; those checks belong in the browser or meeting app after the Mac format is stable.