Naudio开源音频 - 如何让我的样本更响亮？

Question

用c＃中的dll记录5秒样本。 当我收听录音时，它听起来不是很响，所以当我录制样本时，我觉得有些不对劲。

该功能当前记录的时间为5秒。 我做错了什么？

谢谢！

//AUDIO RECORDING AND SAVING
        private void startRecording(String location, float seconds)
        {
            silence = true;
            //deviceNumber = NAudio.Wave.WaveIn.GetCapabilities(0);
            deviceNumber = 0;

            //setup audio stream in
            sourceStream = new NAudio.Wave.WaveIn();
            sourceStream.DeviceNumber = deviceNumber;
            sourceStream.WaveFormat = new NAudio.Wave.WaveFormat(44100, NAudio.Wave.WaveIn.GetCapabilities(deviceNumber).Channels);
            //NAudio.Wave.WaveInProvider waveIn = new NAudio.Wave.WaveInProvider(sourceStream);

            //save .wav file2
            String wavLocation = appLocation + location + now.DayOfYear + @"_" + now.Year + @"_" + now.Hour + @"-" + now.Minute + @"-" + now.Second + @".wav";
            sourceStream.DataAvailable += new EventHandler<NAudio.Wave.WaveInEventArgs>(sourceStream_DataAvailable);
            waveWriter = new NAudio.Wave.WaveFileWriter(wavLocation, sourceStream.WaveFormat);

            //record
            sourceStream.StartRecording();

            //set recording timer, end in 5s
            myTimer.Interval = ((int)(seconds * 1000)) + 1000;
            //when the timer ticks (at each interval), the function "stopRecording" is called.
            //in stop recording, there is asynchronous code.
            myTimer.Tick += new EventHandler(stopRecording);
            myTimer.Start();
        }