AudioNode.connect(AudioParam) doesn't work for biquad filter and delay node

[buramensky]

Hi @mohayonao! Thanks for your amazing audio engine, it's great thing!

I noticed that control of some parameters by audio signal doesn't work. Specifically, I tested frequency of biquad filter, delay time of delay node and gain of gain node on benchmark page. Only gain node works properly :(

In example below wae doesn't change filter's frequency and output signal, but Web Audio API does.

module.exports = function(context) {
 var osc = context.createOscillator(),
   lfoOsc = context.createOscillator(),
   lfoScaler = context.createGain(),
   filter = context.createBiquadFilter();

 filter.type = 'allpass';

 lfoOsc.frequency.value = 5;
 lfoScaler.gain.value = 80;
 lfoOsc.connect(lfoScaler);
 lfoScaler.connect(filter.frequency);

 osc.frequency.value = 100;
 filter.frequency.value = 100;
 osc.connect(filter);
 filter.connect(context.destination);

 osc.start();
 lfoOsc.start();
};

[mohayonao]

oops!! Thank you for your report. I will fix it at this week end.

[buramensky]

Cool! Thanks @mohayonao! I'm looking forward to the fix! :)

[mohayonao]

I've fixed this issue. You can check fixed version at demo page.

• https://mohayonao.github.io/web-audio-engine/demo/#test_filter-modulation
• https://mohayonao.github.io/web-audio-engine/demo/#test_delay-modulation

But, I did not change delay node. I seem to work fine. Would you tell me a test code that replicate bug?