wrong decode

[vinnitu]

var opus = require('node-opus');

// var channels = 1;
var rate = 24000;
var encoder = new opus.OpusEncoder( rate );

var encoded = new Uini8Array([56,255,168,198,27,96,104,141,249,196,107,126,250,251,91,53,81,141,38,101,62,36,181,66,0,171,100,114,9,111,252,155,64,247,247,30,203,1,198,137,50,168,63,71,7,71,178,156,88,104,94,40,103,2,216,187,
68,244,191,92,105,73,102,172,170,38,52,219,132,194,112,197,173,88,161,182,144,64,55,14,92,114,133,104,167,224,78,167,121,229,245,138,218,10,125,190,54,8,210,190,197,169,84,249,245,156,140,108,89,91,147,95
,12,144,85,41,48,179,194,8,190,213,75,147,18,132,130,91,203,24,1,88,24,215,148]);

var frame_size = rate/100;
var decoded = encoder.decode( encoded, frame_size );

console.log(decoded.length == 11520); // must be equal but not, why?
console.log(decoded);

// must be [0,192,207,188,0,128,111,188,0,128,0,188,0,0,48... but not, why?

[Rantanen]

Must be equal based on what? Where did you get that reference data?

Opus is a lossy format and there's various things, such as sample rates that would change the output.

[vinnitu]

I saw it in zello-channel-api in https://github.com/zelloptt/zello-channel-api/blob/master/sdks/js/dist/zcc.decoder.js

t.prototype.decodeFloat32=function(e){return new Float32Array(this._decode(e,4,_opus_decode_float))}

I added console.log to debug it

t.prototype.decodeFloat23 = function(e) {
    console.log(e); // encoded
    const x = this._decode(e,4,_opus_decode_float);
    console.log(x); // decoded
    return new Float32Array(x);
}

I know sampleRate and channels and try use your code to do this task but unsuccessfully

[Rantanen]

Based on the comments in that other issue, you're after raw opus frames. The OpusEncoder gives you opus audio within ogg container, so this is not what you want.

[vinnitu]

Yes, I need to get pcm data from raw opus frames. In my example var encoded is such data.

[vinnitu]

const encoder = new opus.OpusEncoder(sampleRate, channels);
const decoded = encoder.decode(packet);

that is all, sorry for time