Skip to content

Instantly share code, notes, and snippets.

@novwhisky

novwhisky/Audio-Data-URIs.md

Last active February 7, 2024 08:30
Show Gist options
  • Star 18 You must be signed in to star a gist
  • Fork 1 You must be signed in to fork a gist
  • Save novwhisky/8a1a0168b94f3b6abfaa to your computer and use it in GitHub Desktop.
Save novwhisky/8a1a0168b94f3b6abfaa to your computer and use it in GitHub Desktop.
Download ZIP
Tiny audio data URIs of silence
Raw
Audio-Data-URIs.md

Hear these samples in action (actually, they're all silent)

WAV

data:audio/wav;base64,UklGRigAAABXQVZFZm10IBIAAAABAAEARKwAAIhYAQACABAAAABkYXRhAgAAAAEA

MP3

data:audio/mpeg;base64,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

OGG

data:audio/ogg;base64,T2dnUwACAAAAAAAAAAAyzN3NAAAAAGFf2X8BM39GTEFDAQAAAWZMYUMAAAAiEgASAAAAAAAkFQrEQPAAAAAAAAAAAAAAAAAAAAAAAAAAAE9nZ1MAAAAAAAAAAAAAMszdzQEAAAD5LKCSATeEAAAzDQAAAExhdmY1NS40OC4xMDABAAAAGgAAAGVuY29kZXI9TGF2YzU1LjY5LjEwMCBmbGFjT2dnUwAEARIAAAAAAAAyzN3NAgAAAKWVljkCDAD/+GkIAAAdAAABICI=
@blackslate
Copy link

Here's a much shorter MP3 file:

data:audio/mp3;base64,SUQzBAAAAAAAI1RTU0UAAAAPAAADTGF2ZjU2LjM2LjEwMAAAAAAAAAAAAAAA//OEAAAAAAAAAAAAAAAAAAAAAAAASW5mbwAAAA8AAAAEAAABIADAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDV1dXV1dXV1dXV1dXV1dXV1dXV1dXV1dXV6urq6urq6urq6urq6urq6urq6urq6urq6v////////////////////////////////8AAAAATGF2YzU2LjQxAAAAAAAAAAAAAAAAJAAAAAAAAAAAASDs90hvAAAAAAAAAAAAAAAAAAAA//MUZAAAAAGkAAAAAAAAA0gAAAAATEFN//MUZAMAAAGkAAAAAAAAA0gAAAAARTMu//MUZAYAAAGkAAAAAAAAA0gAAAAAOTku//MUZAkAAAGkAAAAAAAAA0gAAAAANVVV

Created using ffmpeg -ar 24000 -t 0.03 -f s16le -acodec pcm_s16le -ac 2 -i /dev/zero -acodec libmp3lame -aq 4 3ms.mp3, and then dropping it into the converter at DATAURL.NET.

@greggman
Copy link

Thanks!!!!

@mmontag
Copy link

mmontag commented Mar 16, 2019

Brilliant

@frederick-lowe
Copy link

Useful, thank you

@ken107
Copy link

ken107 commented Aug 28, 2021 •
edited

I use -ar 8000 -ac 1 perhaps that might result in smaller file?

Edit: another way to do it is
ffmpeg -f lavfi -i anullsrc=r=8000:cl=mono:d=10s silence.mp3

@novwhisky
Copy link
Author

@ken107 Much shorter thanks!

@kivinm
Copy link

kivinm commented Jan 10, 2023

Thank you!

@ZouYouShun
Copy link

awesome

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment