Remove Silence from Audio Online

Upload your audio file, adjust the silence threshold (how quiet counts as silence) and minimum duration (how long a pause must be to get cut). The tool detects and removes all matching sections. Download the trimmed result as WAV.

You control what gets removed. Set a higher threshold to only catch true silence. Set a longer minimum duration to keep short natural pauses and only remove extended dead air. Preview before downloading.

Yes. This is one of the most common use cases. Upload your podcast recording, set the threshold to catch room noise and long pauses, and download a tighter edit. Typical podcast recordings lose 10-30% of their length from silence removal.

No. Silence detection and removal run locally using the Web Audio API. The tool analyzes amplitude values in your browser memory and never transmits your audio.

Yes. Detected silent regions are highlighted on the waveform before you click remove. You can adjust the threshold and minimum duration to fine-tune what gets cut.

The threshold sets how quiet audio needs to be to count as silence. A lower threshold (e.g., -60 dB) only catches true silence. A higher threshold (e.g., -30 dB) also catches quiet room noise and breathing.

No limits. The tool runs locally in your browser. It handles files of any size that your device's memory supports.

Yes, as long as your device has enough memory. A one-hour WAV at 44.1 kHz stereo is about 750 MB. Most modern laptops handle this without issues. For very long recordings, close other tabs first to free up browser memory.

Upload your interview recording, set the silence threshold to around -40 dB (to catch room tone, not just pure silence), and set the minimum duration to 1-2 seconds so natural pauses between sentences stay intact. The tool strips out the long gaps and gives you a tighter edit.

Most raw podcast recordings contain 10-30% dead air from pauses, thinking time, and gaps between questions. A 60-minute raw recording often becomes 42-50 minutes after silence removal. The result sounds more polished and holds listener attention better.