Not able to download audio with added Tone.js Effects

[imperium11]

Hi,

I am having trouble downloading the edited audio tracks with added effects such as reverb from Tone.js. I followed the basic-nextjs/pages/indexjs file in order to get the download functionality to work (thank you Naomi) along with the example given on how to add Reverb - AutoWah etc utilizing the Tone.js library.

The effects are working great but does not get added to the final downloaded audio file nor can i see the Tone.js effects if i log playlist.getInfo()

Thank you

[naomiaro]

Hmm thank-you for reporting 😄

I didn't write the original exporter code, so I'll see if I missed something there 🐛

[naomiaro]

I've made a couple more releases to address these issues, but I've still come across cases when passing Tone.js an OfflineAudioContext for certain effects, they don't work properly and break the script. I'm not sure if this is a Tone.js limitation or not atm. I don't have problems with AutoWah, but for some other effects I've tried the output is either silent, or I get an error thrown. I'll spend a bit more time looking into this to see if I can do anything about it.

[naomiaro]

I had called toString on the function objects, but looking at this now it doesn't make sense since nothing else in this output is a string yet. I'll change this to output just the functions. Thanks for helping with the testing of this 😄

[naomiaro]

Changed in v4.3.3

[imperium11]

ok going to try it now thanks

[imperium11]

Yup working great at the moment! I guess my last question to wrap everything up would be, when i try to download, why do i get several copies of the same downloaded audio track? Or maybe this just happens to me im not too sure.

I added 3 tracks to the editor added some effects etc then clicked download and it downloaded the same audio file 8-9 times.

My code for the download functionality is:

And then i have a simple button:
<button onClick={() => { ee.emit('startaudiorendering', 'wav'); }}>Download</button>

very similar to the nextjs example you made

Am i missing something here?

[naomiaro]

It's probably around where the events are placed on the event emitter. I changed the code a bit in my nextjs example https://github.com/naomiaro/waveform-playlist/blob/main/examples/basic-nextjs/pages/index.js to avoid events being registered multiple times by react re-renders.