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Fix ID attributes in AudioParam page #8307

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Aug 26, 2021
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Fix ID attributes in AudioParam page #8307

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Fix ID attributes in AudioParam page
wbamberg Aug 26, 2021
127b6a6
Better grammar
wbamberg Aug 26, 2021
9bb9b58
More better grammar
wbamberg Aug 26, 2021
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18 changes: 11 additions & 7 deletions files/en-us/web/api/audioparam/index.html
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Expand Up @@ -18,16 +18,20 @@

<p>An <code>AudioParam</code> can be set to a specific value or a change in value, and can be scheduled to happen at a specific time and following a specific pattern.</p>

<p>There are two kinds of <code>AudioParam</code>, <em>a-rate</em> and <em>k-rate</em> parameters:</p>
<p>Each <code>AudioParam</code> has a list of events, initially empty, that define when and how values change. When this list is not empty, changes using the <code>AudioParam.value</code> attributes are ignored. This list of events allows us to schedule changes that have to happen at very precise times, using arbitrary timelime-based automation curves. The time used is the one defined in {{domxref("BaseAudioContext/currentTime", "AudioContext.currentTime")}}.</p>

<ul>
<li id="a-rate">An <em>a-rate</em> <code>AudioParam</code> takes the current audio parameter value for each <a href="/en-US/docs/Web/API/Web_Audio_API/Basic_concepts_behind_Web_Audio_API#audio_buffers.3a_frames.2c_samples_and_channels">sample frame</a> of the audio signal.</li>
<li id="k-rate">A <em>k-rate</em> <code>AudioParam</code> uses the same initial audio parameter value for the whole block processed, that is 128 sample frames. In other words, the same value applies to every frame in the audio as it's processed by the node.</li>
</ul>
<h2>AudioParam types</h2>

<p>Each {{domxref("AudioNode")}} defines which of its parameters are <em>a-rate</em> or <em>k-rate</em> in the spec.</p>
<p>There are two kinds of <code>AudioParam</code>: <em>a-rate</em> and <em>k-rate</em> parameters. Each {{domxref("AudioNode")}} defines which of its parameters are <em>a-rate</em> or <em>k-rate</em> in the spec.</p>

<p>Each <code>AudioParam</code> has a list of events, initially empty, that define when and how values change. When this list is not empty, changes using the <code>AudioParam.value</code> attributes are ignored. This list of events allows us to schedule changes that have to happen at very precise times, using arbitrary timelime-based automation curves. The time used is the one defined in {{domxref("BaseAudioContext/currentTime", "AudioContext.currentTime")}}.</p>
<h3>a-rate</h3>

<p>An <em>a-rate</em> <code>AudioParam</code> takes the current audio parameter value for each <a href="/en-US/docs/Web/API/Web_Audio_API/Basic_concepts_behind_Web_Audio_API#audio_buffers.3a_frames.2c_samples_and_channels">sample frame</a> of the audio signal.</p>

<h3>k-rate</h3>

<p>A <em>k-rate</em> <code>AudioParam</code> uses the same initial audio parameter value for the whole block processed; that is, 128 sample frames. In other words, the same value applies to every frame in the audio as it's processed by the node.</li>
</p>

<h2 id="Properties">Properties</h2>

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