setPan 设置声像(左右声道音量)

setPan

类型: MethodDeclaration

所属类: MultipleAudioPlayer

定义位置: audio.ts

描述

设置声像(左右声道音量)

参数 pan: 声像[-1~+1]

参数 easingId: 过渡曲线ID

参数 duration: 持续时间(毫秒)

参数

参数名	类型	描述	默认值
pan	number	-	-
easingId	string	-	''
duration	number	-	n0

返回值

类型: void

源代码

位置: 第 543 行

public setPan(pan: number, easingId: string = '', duration: number = 0): void {
    if (this.panTransition !== null) {
      this.panTransition.remove()
      this.panTransition = null
    }
    const panner = this.panner.pan
    if (duration > 0) {
      const start = panner.value
      const end = pan
      const easing = Easing.get(easingId)
      this.panTransition = new Timer({
        duration: duration,
        update: timer => {
          const time = easing.get(timer.elapsed / timer.duration)
          panner.value = Math.clamp(start * (1 - time) + end * time, -1, 1)
        },
        callback: () => {
          this.panTransition = null
        },
      }).add()
    } else {
      panner.value = Math.clamp(pan, -1, 1)
    }
  }

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文档生成时间：2025/7/21 20:53:39