How to Play TwistedWave or Audacity Audio Through Google Meet or Teams

Overview

This workflow sends the output of TwistedWave or Audacity into a meeting as if it were a microphone signal. It is useful for remote lessons, voice coaching, listening tests, ADR review, music feedback, and demonstrations where participants need to hear a file without hearing it through your laptop speakers.

The signal path is:

TwistedWave or Audacity playback
        ↓
ZoomAudioDevice (virtual audio input)
        ↓
Google Meet or Microsoft Teams microphone
        ↓
Remote participants

Your headphones ← Google Meet or Teams speaker output

The important separation is that the file goes into the meeting microphone, while the meeting return goes to headphones. Do not send the meeting speakers back into ZoomAudioDevice.

What You Need

• A Mac with the Zoom desktop app and its ZoomAudioDevice available.
• TwistedWave or Audacity with an audio file ready to play.
• Headphones or an audio interface for the meeting return.
• Google Meet in a supported desktop browser or Microsoft Teams desktop/web.
• A private test meeting, a second listener, or a recording of the meeting for verification.

Before You Start

1. Close unnecessary audio applications. A second application can take control of the virtual device or change the sample rate.
2. Connect your headphones before opening the meeting.
3. Use a copy of the audio file for the session. Put the file in a known location and cue it to a few seconds before the section you want to demonstrate.
4. Keep the source file at a sensible level. A clipped file cannot be repaired by the meeting application. Reduce the playback application's output if the virtual input overloads.

Step 1: Confirm ZoomAudioDevice

Open Audio MIDI Setup from Applications → Utilities, or open macOS System Settings → Sound. Look for ZoomAudioDevice in the available audio devices. The name may be shown as a virtual device rather than as a physical speaker.

If it is missing, update or reinstall the Zoom desktop application from Zoom's official download channel, restart the Mac, and check again. Do not remove audio drivers from /Library/Audio/Plug-Ins/HAL manually unless you are following a documented IT support procedure.

Step 2: Set TwistedWave Playback

1. Open TwistedWave and open the file.
2. Open TwistedWave → Preferences and select the audio devices tab.
3. Set the output device to ZoomAudioDevice. Leave the input device on your normal microphone or system setting unless you are also recording.
4. Do not enable Play through for this playback-only workflow. That option is intended to monitor an input while recording.
5. Press play briefly. You should see activity in the meeting microphone meter later, but you may not hear the file in your headphones unless you also monitor the virtual path separately. Keep the meeting speaker set to your headphones for the remote return.

TwistedWave's current manual documents separate input and output device selectors in its audio devices preferences. The exact preference layout can vary by version.

Step 2 Alternative: Set Audacity Playback

1. Open Audacity and the audio file.
2. Choose Audio Setup in the device toolbar.
3. Set Host to Core Audio if it is not already selected on macOS.
4. Set Playback Device to ZoomAudioDevice. Do not select it as the recording device unless you are intentionally recording the routed signal.
5. If it does not appear, choose Audio Setup → Rescan Audio Devices, then reopen the device menu.
6. Play a short section and stop. Audacity's playback device selection is separate from the meeting application's microphone selection, so both must point to the same virtual route.

Step 3: Configure Google Meet

1. Join the meeting from a computer. Avoid joining with Present from the green room, because Google documents that this enters Companion Mode with microphone and speaker unavailable.
2. Open More options → Settings → Audio.
3. Set Microphone to ZoomAudioDevice.
4. Set Speaker to your headphones or audio interface, not ZoomAudioDevice.
5. Keep the microphone unmuted when you press play. Use the microphone meter or ask a participant to confirm that the file is arriving.
6. If Meet's noise cancellation or voice processing removes music or test tones, turn off or reduce that processing for the session if your account exposes the option. Re-enable it for normal speech afterward.

For a presentation rather than a microphone route, Meet also supports Present now with a tab and Also share tab audio, or window/screen sharing with system audio where available. That alternative is often simpler for video playback, but it is not the same as routing an audio editor through ZoomAudioDevice.

Step 4: Configure Microsoft Teams

1. Open Teams Settings and more → Settings → Devices, or use the device controls before joining.
2. Set Microphone to ZoomAudioDevice.
3. Set Speaker to your headphones or audio interface.
4. Use Make a test call if available, then play a short file section while checking the input meter.
5. In a meeting, confirm that the microphone is unmuted before playback.
6. If you use Teams screen sharing instead, select Share and enable Include sound. On Mac, Teams may require its current audio driver for computer-audio sharing, so follow the Teams prompt rather than combining two competing routes.

Step 5: Run a Private Test

1. Start a private test meeting or ask one participant to listen.
2. Mute your physical microphone temporarily. This makes it clear whether the listener is hearing the file or your room.
3. Play a file with speech, silence, and a loud transient. Ask the listener whether all three arrive.
4. Watch the meeting input meter. It should move while the file plays and stop when playback stops.
5. Check that the listener hears no echo of their own voice. If they do, select headphones as the meeting speaker and make sure the physical microphone is not pointed at speakers.
6. Stop playback, restore your normal microphone, and repeat the test with the exact application and file you will use live.

Live Playback Procedure

1. Open the meeting first and confirm the meeting microphone is ZoomAudioDevice.
2. Open TwistedWave or Audacity and load the prepared file.
3. Put the playhead at the cue point and leave the application visible so you can stop quickly.
4. Tell participants what they are about to hear. This prevents silence from being mistaken for a routing failure.
5. Press play. Keep your physical microphone muted if you want only the file heard.
6. When the clip ends, stop playback before unmuting or speaking.
7. After the session, return the playback application to your normal output device so future editing does not disappear into the meeting route.

Troubleshooting

Sources and Method Notes

This guide describes a macOS virtual-device workflow. Menu names and availability can change with application versions, operating-system permissions, organization policies, and meeting settings.

• TwistedWave Reference Manual: Audio devices
• Audacity Manual: Audio Setup Toolbar
• Google Meet Help: Present during a video meeting
• Google Meet Help: Fix audio issues
• Microsoft Support: Manage audio settings in Teams meetings
• Zoom Support: Sharing background music or computer audio