Microphone Troubleshooting
Fix microphone, input device, and no-audio issues in MachinesFluent.
Use this page when recording starts but MachinesFluent hears nothing, the audio visualizer stays flat, or dictation finishes without useful text.
Quick Checks
Start with the simplest checks:
- Confirm the microphone works in another Windows app.
- Confirm the target app is focused if you expect text to appear there.
- Reopen MachinesFluent settings and select the intended input device again.
- Try a short sentence in a simple target such as Notepad.
- Restart MachinesFluent if the device list looks stale.
Windows Microphone Permission
On Windows, microphone access can be blocked at the operating-system level.
Check Windows microphone privacy settings and confirm desktop apps are allowed to use the microphone. If your microphone works in a browser but not in desktop apps, this permission layer is a likely cause.
Pick The Right Input Device
MachinesFluent can show normal microphones and, on Windows, system-audio capture options. If you want to dictate with your voice, choose a microphone device, not an output or loopback device.
| Device choice | Use when |
|---|---|
| Default microphone | You want the normal Windows-selected mic. |
| USB, headset, or interface mic | You want a specific hardware input. |
| System sound or output audio | You intentionally want to capture computer audio instead of your voice. |
If the list contains similar device names, test each likely microphone with one short sentence.
Recording Starts But The Visualizer Is Flat
This usually means MachinesFluent is recording from the wrong source or Windows is not delivering audio.
Try this sequence:
- Select a different microphone in MachinesFluent.
- Unplug and reconnect USB or headset microphones.
- Close other voice apps that may have exclusive access to the device.
- Check the microphone level in Windows sound settings.
- Restart MachinesFluent and test again.
Recording Works But No Text Appears
If the visualizer moves but no text appears:
- confirm the selected speech engine is ready
- switch to a CPU-friendly local engine and test again
- speak one complete sentence rather than a single clipped word
- keep the target text field focused until dictation finishes
- try a different target app to rule out paste restrictions
Some target apps block simulated paste or keyboard input. If dictation works in Notepad but not in a specific app, the issue is likely the target app rather than the microphone.
When To Contact Support
Contact support if multiple microphones fail and the same microphone works elsewhere.
Include:
- Windows version
- MachinesFluent version
- selected speech engine
- selected microphone name
- whether the audio visualizer moves
- whether dictation works in Notepad
- relevant log files from
%APPDATA%\MachinesFluent\logs\