How to Route Zoom & Teams Speaker Audio to AI Transcription Without Echo
Capture interviewer audio cleanly into AI speech-to-text models without creating audio feedback loops or microphone echo during remote calls.
Real-time speech-to-text AI transcription transforms remote interviews and high-stakes meetings. But if your microphone picks up sound from your speakers, you create agonizing echo for other participants, immediately exposing that you are routing audio.
The Audio Loopback Challenge in Video Calls
To feed live interviewer questions into Whisper, Gemini 1.5 Flash, or Deepgram, you need an internal system audio tap that operates silently in the background.
Why Standard Microphones Pick Up Echo
Relying on ambient room microphones to capture both your voice and the interviewer's voice leads to muffled transcriptions, background noise, and acoustic echo cancellation (AEC) artifacts.
Virtual Audio Cables & CoreAudio Loopbacks
Operating systems allow virtual audio routing. By isolating the output bus, Chameleon intercepts the audio stream directly at the driver level for 99.8% transcription accuracy.
Step-by-Step Audio Pipeline Configuration
- Set your Zoom or Teams speaker output to your normal headphones.
- In Chameleon, enable "System Audio Tap" under Audio Settings.
- Select your headphone device as the monitoring output.
- Verify on the real-time transcription meter that spoken questions appear as clean text without any microphone feedback.