shootacean

<p>Web Audio API をつかう<br style="display:none">
<span class="embed-block zenn-embedded zenn-embedded-card"><iframe id="zenn-embedded__3df3068abb99a" src="https://embed.zenn.studio/card#zenn-embedded__3df3068abb99a" data-content="https%3A%2F%2Fdeveloper.mozilla.org%2Fja%2Fdocs%2FWeb%2FAPI%2FWeb_Audio_API" frameborder="0" scrolling="no" loading="lazy"></iframe></span><a href="https://developer.mozilla.org/ja/docs/Web/API/Web_Audio_API" style="display:none" target="_blank" rel="nofollow noopener noreferrer">https://developer.mozilla.org/ja/docs/Web/API/Web_Audio_API</a></p>
