Multiple audio tracks overlay? about wavesurfer-react HOT 1 CLOSED

From my POV, your question is better to be asked in wavesurfer.js repository. Because as soon as this lib is just a wrapper around it (just think of it as a some kind of a syntax sugar for React) there can't be things that are not present in wavesurfer.js natively. At least for now, I don't (and may be don't want to) try to implement some custom stuff on top of wavesurfer.js.

Finally, I can give you the following advice on "what to do":
if wavesurfer.js allows you to do it natively, then use appropriate option, otherwise try to investigate the case whether you can do it with a plugin? If plugin exists - use it, otherwise try to create it and publish it on NPM. If you succeeded, then you can just pass this plugin inside plugins list and use it as all other plugins.

from wavesurfer-react.