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<title>Audio.play_at — Ludic</title>
<meta name="description" content="Fire a one-shot with its own gain, pitch and stereo position.">
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<header class="nav"><div class="wrap nav-in"><a class="brand" href="index.html"><span class="logo">L</span> Ludic</a><button class="nav-toggle" aria-label="Toggle menu" aria-expanded="false">☰</button><nav class="nav-links"><a href="index.html">Home</a><a href="api.html">API Reference</a><a class="nav-cta" href="https://git.workshopsoft.io/workshopsoft/ludic">Source ↗</a></nav></div></header>
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<div class="crumbs"><a href="api.html">API Reference</a> <span>›</span> <a href="ns-audio.html">Audio</a> <span>›</span> <span class="here">Audio.play_at</span></div>
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<span class="kind-badge kind-method">method</span>
<h1 id="top">Audio.play_at</h1>
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<code class="sig">Audio.play_at(id, gain, pitch, pan) -&gt; void</code>
<div class="desc"><p>Plays the sound <code>id</code> from the start as a one-shot, with its **own** gain, pitch
and stereo position, leaving the master settings alone.</p><p><code>Audio.volume</code> and <code>Audio.pitch</code> are global: they exist so a player
can turn the game down, and a game that used them to place a sound in the world would be
fighting its own options screen. This is the per-voice version, and it is what distance
attenuation is made of — work out how far away a sound is and which side it is on, and say
so here.</p><p>- <code>gain</code> — 0.0 to 1.0, multiplied by the master volume, so the options screen
still wins.
- <code>pitch</code> — 1.0 is as recorded; 0.5 an octave down, 2.0 an octave up. Clamped
to the backend's 0.25 .. 4.0.
- <code>pan</code> — -1.0 hard left, 0.0 centred, 1.0 hard right.</p><p>One honest limitation, and it is the backend's: a loaded sound is one player, so firing
the same handle again restarts it rather than layering a second copy over the first. Load
a handle per variant when several need to overlap — which is what a game does anyway, to
stop a repeated sound machine-gunning.</p></div>
<div class="examples"><h2>Example</h2><pre data-lang="ludic">program Demo {
entry {
let call = Audio.load("elk.wav")
# an elk eighty metres off, over your left shoulder
Audio.play_at(id: call, gain: 0.3, pitch: 0.96, pan: -0.55)
}
}</pre></div>
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