A clipped first word.
A second of silence before it keeps a player or a fade from eating the start.
SOLIPSIUM Super resolution audio engine
Free audio tool
Add silence before or after a recording.
Type how many seconds of silence go before the recording and how many after. Your browser adds them at the file's own sample rate. Nothing is uploaded.
Drop a recording here
Your browser does the work on this device. Nothing is uploaded.
WAV, MP3, M4A, FLAC, OGG, Opus and more, up to 30 minutes or 200 MB.
Silence
Why add silence
Room before the first word.
Some players and services cut the first moment of a file, and some forms ask for silence at each end.
A gap between tracks.
Silence after each file spaces them out when they play in a row.
A length a form asks for.
Pad a file out to the length a submission asks for.
How it works
Exact silence, nothing else.
The silence is digital zero, at the file's own sample rate and channels.
Type the seconds.
Up to 60 before and 60 after, to a hundredth of a second.
Add it.
The recording itself is copied sample for sample between the two.
Save it.
As an MP3 at 192 kbps or a 16-bit WAV.
Questions
About adding silence.
Room tone rather than digital silence?
Digital silence is completely quiet, which can sound like a hole next to a noisy recording. Cut a stretch of the room's own quiet with the audio trimmer and join it on with the audio joiner.
Silence in the middle?
Split the recording where the gap goes, then join the parts with a gap with the audio joiner.
Will an MP3 keep the exact length?
Close to it. An MP3 encoder adds a short delay at the start; a WAV keeps the exact length.
Remove silence instead?
Remove silence cuts long pauses down to a short gap.
Is my recording uploaded?
No. Your browser opens the file and does the work on this device; nothing is sent to Solipsium. Checking a recording for noise, hum and clipping is another page: the home page checks it in your browser too.
Free audio tools
Related free tools.
For gaps and joins.
- Remove silence
Cut long pauses down to a short gap.
- Audio joiner
Join recordings with a gap or a crossfade.
- Fade in and fade out
Fades of up to 30 seconds at each end.
- Audio trimmer
Cut a recording to the part you keep.
- All free audio tools
Every free tool on one page.
Holes of silence you did not add?
Short holes of exact silence inside a recording are dropouts. Drop it on the home page to find them, and hear the short ones filled in its first 20 seconds.
Check a recording
The check and the 20-second try need no account.