基本播放

使用合成器生成音色或加载音频文件，体验 waa-play 的基本播放功能。

• 音源生成（正弦波、白噪声、脉冲）或文件加载
• 波形显示和定位
• 播放/暂停/停止
• 音量、声像、速度和循环控制

音源

生成合成音色或加载音频文件以开始使用。

频率 440 Hz 时长 2.0 s

生成

或

加载音频文件

代码示例

WaaPlayer API

import { WaaPlayer } from "waa-play";

const player = new WaaPlayer();
const buffer = player.createSineBuffer(440, 2);

const gain = player.createGain(0.8);
const panner = player.createPanner(0);

const playback = player.play(buffer, {
  through: [gain, panner],
  loop: true,
});

playback.on("timeupdate", ({ position, duration }) => {
  console.log(`${position.toFixed(1)}s / ${duration.toFixed(1)}s`);
});

playback.pause();
playback.resume();
playback.seek(1.0);
playback.setPlaybackRate(1.5);
playback.stop();

player.dispose();

函数 API（自带 AudioContext）

import { WaaPlayer } from "waa-play";

const ctx = new AudioContext({ sampleRate: 48000 });
const player = new WaaPlayer(ctx);

const buffer = await player.load("/drums.mp3");
const gain = player.createGain(0.8);
const comp = player.createCompressor({ ratio: 4 });

const a = player.play(buffer, { through: [gain, comp] });

a.on("ended", () => {
  player.play(buffer, { through: [gain, comp] });
});

player.dispose();
ctx.close();