How the noise reducer works
ToolGPT takes the sound from your file and makes an MP3 copy of it in your browser. That copy goes to ToolGPT's Noise Reducer cloud service, which removes the background noise and keeps the voice. The cleaned audio comes back to the chat as an MP3.
For a video, ToolGPT then puts the cleaned sound back under your picture in your browser. You get the video with clearer speech, and the cleaned audio is also saved on its own.