How to make audio louder
- Drop in an audio file in MP3, WAV, M4A, AAC, FLAC, or OGG format.
- Select a gain adjustment, choosing from subtle boosts like +3 dB up to +30 dB or cuts down to −20 dB.
- Process the audio and download your leveled track with -louder or -quieter in the filename.
Rescuing quiet dialogue and distant microphones
Content creators and podcast hosts often receive guest audio recorded on weak phone microphones or distant laptop mics that sound far too quiet compared to the main show. Applying a gain boost of +6 dB doubles the signal level, while +10 dB sounds roughly twice as loud to human ears.
For extremely distant lecture recordings or quiet whispers, heavy boosts like +12 dB, +20 dB, or +30 dB bring dialogue up to an audible, intelligible level. Conversely, if an imported track was recorded too hot and clips playback, selecting −3 dB or −6 dB pulls the gain down safely.
Peak limiter protection against digital clipping
Simply amplifying digital audio risks pushing waveform peaks past 0 dB full scale, resulting in harsh, jarring square-wave distortion. To protect your audio, the booster includes an integrated peak limiter that holds maximum peaks at 0.97 full scale.
When you apply substantial gain increases to dynamic audio, loud peaks are squashed by the limiter, preventing digital overs while raising the perceived volume of quieter sections. Keep in mind that boosting gain also amplifies ambient room hum, background hiss, and microphone pre-amp noise.
Preserving input formats and bitrate integrity
The tool maintains your source format for MP3, WAV, M4A, AAC, FLAC, OGG, Opus, WMA, and AIFF files; other inputs convert to MP3. Lossy audio formats are re-encoded at their original bitrate rounded to a 32 kbps step between 96 and 320 kbps (defaulting to 192 kbps if unknown).
Output files are automatically tagged with -louder or -quieter so you can distinguish them from original takes. The booster focuses purely on audio files and runs locally via WebAssembly, keeping private recordings secure.
Questions
How much louder will my audio sound at +6 dB?
+6 dB doubles the physical signal voltage, which provides a clean, noticeable volume boost suitable for quiet voice recordings.
Will boosting the volume cause harsh clipping distortion?
No. The integrated limiter holds peaks at 0.97 full scale to prevent clipping, though heavy boosts will compress dynamic range.
Can I use this tool to make overly loud audio quieter?
Yes. Select negative gain settings like −3 dB, −6 dB, or −10 dB to pull down hot recordings safely.
Why does my boosted audio sound more compressed?
Large gain boosts trigger the peak limiter during loud transients, holding peaks at 0.97 and reducing dynamic contrast.