Audio dynamics compressor
Stereo-linked peak detector, hard knee, threshold−60–0dB, ratio1–20, attack0.1–200ms/release10–2000ms, makeup0–24dB.
- Runs in your browser
- No upload
- Check before download
Audio stays on this device. No upload or microphone recording. Stereo-linked peak detector, hard knee, threshold−60–0dB, ratio1–20, attack0.1–200ms/release10–2000ms, makeup0–24dB. Before/after RMS/peak traces; not file-size compression or auto quality. Files up to 16 MiB, mono or stereo at 32, 44.1 or 48 kHz, up to 60 seconds and 24 MiB of PCM; the 20-second deadline includes reading and native decoding. DSP exports 16-bit WAV, drops source metadata and warns before clipping. The original bytes stay available. MP3 ID3 edits: up to 120 seconds, ID3v2.3 or 2.4, tags up to 2 MiB, PNG or JPEG cover up to 1 MiB and 4 MP; the audio frames are unchanged. Unsupported, encrypted or signed data is rejected. Supported formats: WAV (PCM 16, 24 or 32 bit, or float32 with |x| up to 16), MP3 (MPEG-III, ID3v2.3 or 2.4) and M4A (AAC-LC).
How to use this tool
- Choose audio
Audio stays on this device. No upload or microphone recording. Files up to 16 MiB, mono or stereo at 32, 44.1 or 48 kHz, up to 60 seconds and 24 MiB of PCM; the 20-second deadline includes reading and native decoding. DSP exports 16-bit WAV, drops source metadata and warns before clipping. The original bytes stay available. MP3 ID3 edits: up to 120 seconds, ID3v2.3 or 2.4, tags up to 2 MiB, PNG or JPEG cover up to 1 MiB and 4 MP; the audio frames are unchanged. Unsupported, encrypted or signed data is rejected.
- Supported model and limits
Stereo-linked peak detector, hard knee, threshold−60–0dB, ratio1–20, attack0.1–200ms/release10–2000ms, makeup0–24dB. Before/after RMS/peak traces; not file-size compression or auto quality.
- Download
Original file · Stereo-linked peak detector, hard knee, threshold−60–0dB, ratio1–20, attack0.1–200ms/release10–2000ms, makeup0–24dB. Before/after RMS/peak traces; not file-size compression or auto quality.
Supported model and limits
Original file
Files up to 16 MiB, mono or stereo at 32, 44.1 or 48 kHz, up to 60 seconds and 24 MiB of PCM; the 20-second deadline includes reading and native decoding. DSP exports 16-bit WAV, drops source metadata and warns before clipping. The original bytes stay available. MP3 ID3 edits: up to 120 seconds, ID3v2.3 or 2.4, tags up to 2 MiB, PNG or JPEG cover up to 1 MiB and 4 MP; the audio frames are unchanged. Unsupported, encrypted or signed data is rejected.
Supported model and limits
Stereo-linked peak detector, hard knee, threshold−60–0dB, ratio1–20, attack0.1–200ms/release10–2000ms, makeup0–24dB. Before/after RMS/peak traces; not file-size compression or auto quality.
How can I check this result?
Compare the RMS and peak traces before and after, the gain reduction and any clipped samples. Reopen the WAV. Dynamics compression does not aim for a file size and is not automatic mastering.
Some audio workflows use Mediabunny1.60.0 (MPL-2.0). Copyright notices and original license · Download preferred TypeScript source1.60.0