[Csnd] Use WASM Csound to create an audio file in the browser

The Csound Mailinglist
1

Hi folks, what I would like to do is have a pure client side web script create an audio file that can be downloaded by the user without a trip to the server (after the original page load, I mean). The file would be made based on my WASM Scheme engine, which is integrated already with the web audio api and also WASM audio worklets. It seems like Csound would be good for handling the scoring side, as it would be dead easy for the scheme engine to produce a csound score. So I hope:

  • user make some settings choices
  • engine creates score, renders wav file
  • user can download said file as a typical link

I’m curious if anyone has done this or something similar?

thanks!
iain

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2

This piece of mine does what you ask. You can see how it works by inspecting the handler for the Record button.

https://gogins.github.io/cloud_music_no_14.html

3

Fantastic, thanks Michael! :slight_smile:

iain

4

This tutorial may be of help
https://vlazzarini.github.io/vanilla/7.Render/readme.html

Prof. Victor Lazzarini
Maynooth University
Ireland

5

oh great, exactly what I wanted. Thanks Victor!