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import AudioOut from 'pins/audioout'
export type ToneProperty = {
volume?: number
}
export default class Tone {
volume: number
constructor(props: ToneProperty) {
this.volume = props.volume ?? 0.5
}
async tone(hz: number, duration: number, volume?: number): Promise<void> {
const audio = new AudioOut({
streams: 1,
sampleRate: 24000,
bitsPerSample: 16,
})
return new Promise((resolve) => {
audio.enqueue(0, AudioOut.Flush)
audio.enqueue(0, AudioOut.Volume, Math.round((volume ?? this.volume) * 256))
audio.enqueue(0, AudioOut.Tone, hz, (audio.sampleRate * duration) / 1000)
audio.enqueue(0, AudioOut.Callback, 1)
audio.start()
audio.callback = (_id) => {
audio.close()
resolve()
}
})
}
}
77b325ca7This file is pinned to the selected release. Download the original to open it in your design tool.