HarmonyOS 鸿蒙Next 使用audioRenderer播放rawfile文件夹下pcm文件出现杂音且误播其他音频文件原因待查

写死固定播放rawfile/wave目录下的文件结果把上一层rawfile下的文件也播放了。我没查到原因，希望大家帮我看看

export class AudioRender {

    static renderModel: audio.AudioRenderer

    static audiostreamInfo: audio.AudioStreamInfo = {
        samplingRate: audio.AudioSamplingRate.SAMPLE_RATE_8000,
        channels: audio.AudioChannel.CHANNEL_1,
        sampleFormat: audio.AudioSampleFormat.SAMPLE_FORMAT_S16LE,
        encodingType: audio.AudioEncodingType.ENCODING_TYPE_RAW
    }

    static audiorenderInfo: audio.AudioRendererInfo = {
        usage: audio.StreamUsage.STREAM_USAGE_VOICE_ASSISTANT,
        rendererFlags: 0
    }

    static audioRenderOptions: audio.AudioRendererOptions = {
        streamInfo: this.audiostreamInfo,
        rendererInfo: this.audiorenderInfo
    }

    // static renderFile: fileIo.File
    static renderFile: resourceManager.RawFileDescriptor

    static maxSize: number = 0

    static renderSize: number = 0

    static async init(){
        AudioRender.renderModel = await audio.createAudioRenderer(AudioRender.audioRenderOptions)
        let buffer = AudioRender.renderModel.getBufferSizeSync()
        AudioRender.renderModel.on(‘writeData’, (buffer: ArrayBuffer)=>{
            if(AudioRender.renderFile){
                fileIo.readSync(AudioRender.renderFile.fd, buffer, {
                    offset: AudioRender.renderSize,
                    length:buffer.byteLength
                })
                AudioRender.renderSize += buffer.byteLength
            }
            console.log(‘fd:’+AudioRender.renderFile.fd.toString())
            if(AudioRender.renderSize>=AudioRender.maxSize){
                fileIo.closeSync(AudioRender.renderFile.fd)
                AudioRender.stop()
            }
        })
    }

    static start(filePath: string){
        AudioRender.renderModel.stop()
        // AudioRender.renderFile = fileIo.openSync(filePath, fileIo.OpenMode.READ_WRITE)
        AudioRender.renderFile = getContext().resourceManager.getRawFdSync(‘wave/beijing.wav’)
        AudioRender.maxSize = AudioRender.renderFile.length
        // AudioRender.maxSize = fileIo.statSync(AudioRender.renderFile.fd).size
        AudioRender.renderModel.start()
    }

    static async stop(){
        if(AudioRender.renderModel && AudioRender.renderModel.state===audio.AudioState.STATE_RUNNING){
            AudioRender.renderModel.stop()
            // AudioRender.renderModel.release()
            AudioRender.maxSize = 0
            AudioRender.renderSize = 0
        }
    }
}