01Phase 01
1. Clean Gain Amplification
Applies the same gain to the whole file (0 to +18 dB, up to about 7.9× the amplitude) to make quiet recordings audible.
Volume Booster · Peak Limiter · 100% Free
Audio Volume Booster Online Without Clipping
Boost quiet audio tracks, MP3s, smartphone voice memos, and video audio by up to +18 dB. A look-ahead peak limiter at -1 dBFS stops the boosted audio from clipping.
Volume Booster
Runs locally in your browserReady
Drop an audio or video file here
WAV, MP3, M4A, FLAC, OGG, MP4, MOV or WebM. Decoded in your browser, never uploaded.
Choose file
100% browser-local processing · No files uploaded to any server
Acoustic Engineering Guide · Architecture
How this tool works in browser memory
How this tool decodes, analyzes, and masters your dialogue locally with zero cloud latency.
02Phase 02
2. Look-Ahead Peak Limiting
A linked look-ahead limiter turns the gain down just before loud peaks, so every sample stays at or below -1.0 dBFS instead of clipping into square waves.
03Phase 03
3. Lossless 16-Bit WAV Export
Audition amplified audio instantly in the browser and download an uncompressed 16-bit PCM WAV file with no watermark.
Connected finishing workflows
Explore companion utilities for dialogue cleanup, speech pacing, and mastering.
Audio Standards & Research
Engineering guides & deep-dive workflows
Explore the acoustic principles, ITU-R loudness standards, and pacing techniques behind this tool.
Volume Booster7 min read
How to Boost Quiet Audio Without Digital Clipping or Distortion
Master safe digital gain scaling: how True-Peak limiting and soft-knee dynamics prevent clipping while boosting quiet speech signals up to +18 dB.
Distorted Audio8 min read
How to Fix Distorted Audio from Hot Microphone Gain and Clipping
Understanding digital clipping boundaries: when peak reconstruction algorithms can repair flattened waveform tops and when analog saturation is permanent.
Audio Compression8 min read
Voice Recording Compression Settings: Ratios, Attack, and Release for Speech
Optimum compressor settings for dialogue: why 2:1–4:1 ratios with 20ms attack and 150ms release preserve consonants and smooth vocal dynamics.
Frequently Asked Questions
Common Questions & Technical Clarifications
How does AutoSilenceCut boost volume without distortion or clipping?+
Standard online volume boosters simply multiply digital sample values, causing audio that exceeds 0 dBFS to clip into flat square waves (harsh digital distortion). AutoSilenceCut pairs the gain with a look-ahead peak limiter that turns peaks down before they reach -1 dBFS, so the file never hard-clips.
How loud can I make my audio?+
You can boost audio by up to +18 dB (about 7.9× the amplitude). The meters show integrated loudness (LUFS) and estimated true peak for the input and the output, so you can see how much louder it got.
Is my audio uploaded to any server or file queue?+
No. All gain scaling and limiter calculations execute 100% locally in your browser memory via Web Audio API. Zero audio files or data are uploaded.
Are there any file size or daily usage limits?+
There are no queues or daily limits. Because processing runs in your browser, the practical limit is your device memory, with a 1 GB cap per file.