Audio Denoiser
Reduce background noise in audio so speech is easier to hear.
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View My CreationsDia TTS Audio Denoiser — Remove Background Noise from Audio Online
Dia TTS Audio Denoiser is a browser-based background noise remover designed for uploaded speech recordings. Upload one MP3, OGG, WAV, M4A, or AAC file, and the tool processes the recording to reduce unwanted background noise and improve speech clarity. When processing is complete, you can preview the cleaned audio in your browser and download it as a 192 kbps MP3. Files can be up to 50MB and 30 minutes long, and no audio editing software needs to be installed. The current tool processes uploaded audio files rather than live microphone input, calls, or video files. Results depend on the source recording. Low-level room noise, fan noise, hum, and similar background sounds may be reduced, but loud music, overlapping speakers, clipping, and strong echo may not be removed completely. New users can sign up and use complimentary credits to try the service. Credit usage is based on audio duration.
See It in Action
A real result generated with Dia TTS.
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Output
Why Use the Dia TTS Audio Denoiser
Reduce distracting background noise while keeping spoken content as clear and natural as possible. The tool is designed for voice recordings such as narration, interviews, podcasts, lessons, meetings, and voice notes.
You do not need to create a noise profile or configure technical audio filters. Upload your recording and submit it for automatic processing, making it easier to clean up audio without learning traditional noise-reduction software.
Upload MP3, OGG, WAV, M4A, or AAC audio. Each file can be up to 50MB and 30 minutes long. The processed result is provided as a 192 kbps MP3 that can be previewed and downloaded from the browser.
Dia TTS runs in your browser, so there is no desktop application or plugin to install. New users can receive complimentary credits after signing up. Estimated credit usage is based on the length of the uploaded recording.
How to Remove Background Noise from Audio Online
Prepare a Clear Speech Recording
Choose the audio file you want to clean. For more consistent speech enhancement, use a recording with one main speaker, reasonably stable volume, and as little clipping as possible.
- •Use MP3, OGG, WAV, M4A, or AAC
- •Keep the file at or below 50MB
- •Keep the recording at or below 30 minutes
- •Trim unrelated silence when practical
- •Avoid files where music or another speaker is louder than the main voice
- •Use the original source when the recording is clipped or heavily distorted
Upload and Denoise the Audio
Upload the file to the Audio Denoiser and start processing. The tool applies assisted noise reduction automatically, so there are no separate threshold, pitch, equalizer, or noise-profile settings to configure. Credit usage is calculated from the audio duration, so longer recordings require more credits than shorter recordings.
Preview and Download the Cleaned Audio
When processing is complete, listen to the result in your browser and download the processed 192 kbps MP3 if it is suitable for your project. If the result is not satisfactory, try a cleaner source recording. Background noise that overlaps heavily with the speaker’s voice is more difficult to reduce without affecting speech quality.
Who Uses the Dia TTS Audio Denoiser
Dia TTS helps creators, educators, and teams clean up speech recordings for publishing, review, and other authorized audio workflows.
Podcasts and Interviews
Clean up podcast conversations, remote interviews, introductions, and spoken segments affected by room noise, fans, or other low-level background sounds.
Video Voiceovers and Social Content
Improve recorded narration for videos, product demonstrations, Shorts, Reels, and other social content. The current page accepts audio rather than video, so extract the audio track before uploading it.
Lessons, Meetings, and Training Material
Reduce distractions in recorded lectures, online lessons, meeting audio, tutorials, and internal training so spoken information is easier to review and understand.
Voice Notes and Speech Workflow Preparation
Create a cleaner working copy of voice notes or lightly noisy recordings before reviewing, transcribing, or using them in another authorized voice workflow. Denoising does not guarantee downstream accuracy or generation quality.