Example for playing multiple sounds and/or tracks

[designbyadrian]

Hello,

Is there any example you could provide for playing multiple simultaneous sounds and/or tracks? Something that looks like a mini piano would be really helpful!

I'm trying to have one global audio context, then connecting multiple audio nodes to it. Each process has its own player object. I get no errors, but also no sound.

If you're curious about where I'm doing something wrong, here's the gist of it (pun intended): https://gist.github.com/designbyadrian/947d4090bea34b4aff498cf09f0d7711

[designbyadrian]

As a side note, if I've got more than ten different sounds I'd like to trigger, is it better to concatenate them into one file, then play using play([MEMORY LOCATION])?

[gaborszanto]

Create on node only, and put all your audio processing code inside that single node, just like in the examples. To support multiple simultaneous sounds, just create that many AdvancedAudioPlayers.

[designbyadrian]

I'm still having trouble with this. The problem lies with the processAudio function. Without it, I just get a loud noise. With it... well, I don't know how to process multiple tracks at once.

I'm using your time stretching example: https://gist.github.com/designbyadrian/5ecb91fe3cc2cac49911dc178d1fef36

[logesh2496]

@designbyadrian i'm into the same situation. things are fine with just one player.
Were you able to solve the issue?- How do I handle the silence in processAudio when multiple players are created?

Thanks

[designbyadrian]

@logesh2496 No, I'm clueless. In my humble opinion, more examples should be provided for developers who don't come from iOS/Android.

[logesh2496]

@designbyadrian agree. And if you are still stuck with processStereo for multiple player, perhaps i can help you:

let silence = this.playerTwo.processStereo(outputBuffer.pointer, false, buffersize, 1) if ( // Add if conditions to each and every players except the first one this.playerTwo.processStereo(outputBuffer.pointer, !silence, buffersize, 1) ) { silence = false } if (silence === true) { for (let n = 0; n < buffersize * 2; n++) outputBuffer.array[n] = 0 }

[designbyadrian]

@logesh2496 I had a non-working example using a similar check, but I had messed up the part where I write zeroes to the output buffer.

Here's a working example using 8 short MP3 files here: https://github.com/designbyadrian/web-audio-javascript-webassembly-SDK-interactive-audio/tree/example/multiple/example_multiple