Discord.js: VoiceReceiver.createStream data event not triggered?

[Vuurbaard]

I've been trying to capture some audio from a user when he/she is talking for the past few days. Recently switched to master (commit acd1740f0b44064a0df0e4eecb5340af35869f72) in the hopes it would fix my problems but I just can't get it to work.

createReceiver returns a ReadableStream which should have a data event. It never logs the amount of bytes in that chunk so I have a feeling there is just no data coming through the stream at all. The code is running on a docker instance with the node:carbon image.

client.on('ready', () => {
    let channel = client.channels.find('name', 'General');

    channel.join().then(connection => {

        const receiver = connection.createReceiver();

        connection.on('speaking', (user, speaking) => {
            console.log(user.username, 'speaking:', speaking);

            if (speaking) {

                const audioStream = receiver.createStream(user, {mode: 'pcm'});
                audioStream.on('data', (chunk) => {
                    console.log(`Received ${chunk.length} bytes of data.`);
                });
            }

        });
    });
});

• discord.js version:master
• node.js version:v8.10.0
• Operating system: Docker container

[amishshah]

I've left VoiceReceivers in a sort of broken state while rewriting, I'll try and fix ASAP

[stephen-hartshorne]

Are there any workarounds at the moment for receiving voice data? I'm also running into the same problem.

[amishshah]

Hi!

So I took another look, it actually looks like the code in discord.js is correct, there was a separate bug but it seems irrelevant to the issue here -- although please update your prism-media to 0.2.1!

A few days ago it was reported that Discord wouldn't actually send voice packets to bot until they started speaking, and I was able to reproduce this locally. A fix from Discord is coming soon, but for now, as a workaround, I'd suggest playing a very short file in each voice channel you join.

Thanks!

[amishshah]

Discord.js voice now uses the v4 protocol which should fix this issue, see commit https://github.com/discordjs/discord.js/commit/08bbbe930144616338fc906ce5fc7a3e5725b670

[TBubba]

I tried the example code posted above with the commit you linked and it still didn't emit any data events. I also tried playing a short audio file (500ms long) when the bot joined the voice channel, but it didn't help. Any ideas?

EDIT: Nevermind, installing FFMPEG through npm (ffmpeg-binaries), instead of relying on my previous installation from somewhere else, solved it. Maybe I should read the docs more carefully next time. Anyways, thanks for fixing this @hydrabolt ! :+1: :tada:

[FerLuisxd]

Has discord fixed the bug @amishshah said? My pcm files are still 0kb