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POCreating a 10-Band Equalizer Using Web Audio API
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2012-10-05T00:48:15.530
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2015-05-06T07:59:48.477
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2017-02-08T14:37:40.237
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I'm trying to wrap my head around using the Web Audio API to recreate something like Winamp's 10-band equalizer. <img src="https://cdn.head-fi.org/3/3d/1000x500px-LL-3da00ebd_winamp-eq.png" alt="Winamp's 10-band equalizer"> From what I can gather, I have to create 10 <a href="https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#BiquadFilterNode-section" rel="nofollow noreferrer">Biquad Filters</a>, set their <code>type</code> to <a href="https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#BANDPASS" rel="nofollow noreferrer">2 (for a Bandpass filter)</a> and set their <code>frequency</code> to <code>[60, 170, 310, 600, 1000, 3000, 6000, 12000, 14000, 16000]</code> respectively. Once I have done that (and here's where I'm getting a little confused) I would then create a separate <a href="https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#AudioGainNode-section" rel="nofollow noreferrer">Gain Node</a> for each frequency "band" and bind its value to a slider. <pre><code><input id="someFreqBand" type="range" min="-12" max="12" step="0.1" value="0" onchange="slide()"/> </code></pre> Assuming all of that is correct, then the only remaining step is to connect all 10 gain nodes to the Audio Context <code>destination</code> (which I imagine will take all 10 frequency "bands" and mix/sync them back together). Is this the right way to go about creating a Web Audio 10-band equalizer? The major thing I'm confused about is how I go about "connecting" the source to the 10 frequency band filters (+ associated gain node) since all the nodes only have a single input or output (including the destination).
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<javascript><html5-audio><equalizer><web-audio>
Title
Creating a 10-Band Equalizer Using Web Audio API
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