/// <summary>
/// 开始录音
/// </summary>
/// <param name="freq">录音采样率,默认48000</param>
/// <param name="chans">声道数[1-6],默认1</param>
/// <param name="period">录音数据输出间隔,单位/毫秒,默认100.最小值5ms,the maximum the maximum is half the BASS_CONFIG_REC_BUFFER setting.
/// If the period specified is outside this range, it is automatically capped. The default is 100ms</param>
/// <param name="sampleType">采样类型,建议默认值16位</param>
public void Start(int freq = 48000, int chans = 1, int period = 100, SampleType sampleType = SampleType.Sample16Bit)
{
BASSFlag flags = this.SampleTypeToBASSFlag(sampleType);
this._recordFlag = true;
this._handle = RecordHelper.RecordStart(freq, chans, flags, period, this._recordPro, IntPtr.Zero);
WavHelper.ChannelPlay(this._handle, false);
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="dataOutput">录音数据输出委托[第一个参数:设备索引;第二个参数:数据;第三个参数:数据长度]</param>
/// <param name="device">录音设备索引,-1 = default device, 0 = first. BASS_RecordGetDeviceInfo can be used to enumerate the available devices</param>
public SoundRecorder(Action <int, byte[], int> dataOutput, int device = 0)
{
if (dataOutput == null)
{
throw new ArgumentNullException(nameof(dataOutput));
}
RecordHelper.RecordInit(device);
this._device = device;
this._dataOutput = dataOutput;
this._recordPro = new RECORDPROC(RecordProCallback);
}
/// <summary>
/// Frees all resources used by the recording device.
/// </summary>
public static void Free()
{
RecordHelper.RecordFree();
}
/// <summary>
/// 获取当前使用的录音设备的信息
/// </summary>
/// <returns>当前使用的录音设备的信息</returns>
public BASS_DEVICEINFO GetDeviceInfo()
{
return(RecordHelper.RecordGetDeviceInfo(this._device));
}