public void InitRecording(bool SRecording)
{
//if no device is set then it is informed then no device is set
if (null == m_cApplicationDevice)
{
throw new Exception("no device is set for recording");
}
//format of the capture buffer and the input format is compared
//if not same then it is informed that formats do not match
if (applicationBuffer.Format.ToString() != InputFormat.ToString())
{
throw new Exception("formats do not match");
}
if (SRecording)
{
CreateCaptureBuffer();
applicationBuffer.Start(true); //it will set the looping till the stop is used
}
else
{
applicationBuffer.Stop();
RecordCapturedData();
BinaryWriter Writer = new BinaryWriter(File.OpenWrite(m_sFileName));
long Audiolength = (long)(SampleCount + 44);
CalculationFunctions cf = new CalculationFunctions();
for (int i = 0; i < 4; i++)
{
Writer.BaseStream.Position = i + 4;
Writer.Write(Convert.ToByte(cf.ConvertFromDecimal(Audiolength)[i]));
}
for (int i = 0; i < 4; i++)
{
Writer.BaseStream.Position = i + 40;
Writer.Write(Convert.ToByte(cf.ConvertFromDecimal(SampleCount)[i]));
}
Writer.Close(); // Close the file now.
//Set the writer to null.
Writer = null;
SampleCount = 0;
Audiolength = 0;
AudioClip NewRecordedClip = new AudioClip(m_sFileName);
mAsset.AddClip(NewRecordedClip);
//NotifyThread = null;
}
}
public ArrayList ApplyPhraseDetection(long threshold, double length, double before)
{
// convert input parameters from time to byte
long lLength = Calc.ConvertTimeToByte(length, m_SamplingRate, m_FrameSize);
long lBefore = Calc.ConvertTimeToByte(before, m_SamplingRate, m_FrameSize);
AudioClip ob_Clip;
// AssetList is list of assets returned by phrase detector
ArrayList alAssetList = new ArrayList();
// clipList is clip list for each return asset
ArrayList alClipList;
AudioMediaAsset ob_Asset = new AudioMediaAsset(m_Channels, m_BitDepth, m_SamplingRate);
// apply phrase detection on each clip in clip list of this asset
for (int i = 0; i < m_alClipList.Count; i++)
{
ob_Clip = m_alClipList [i] as AudioClip;
alClipList = ob_Clip.DetectPhrases(threshold, lLength, lBefore);
//MessageBox.Show (alClipList.Count.ToString () + "Clip Count") ;
if (Convert.ToBoolean(alClipList [0]) == false)
{
//MessageBox.Show ("bool is False") ;
ob_Asset.AddClip(alClipList [1] as AudioClip);
if (i == m_alClipList.Count - 1 && ob_Asset.m_alClipList != null)
{
alAssetList.Add(ob_Asset);
//MessageBox.Show ("last Asset added") ;
}
}
else
{
//MessageBox.Show ("bool is true") ;
if (ob_Clip.BeginTime + 3000 < (alClipList [1] as AudioClip).BeginTime)
{
ob_Asset.AddClip(ob_Clip.CopyClipPart(0, (alClipList [1] as AudioClip).BeginTime - ob_Clip.BeginTime));
if (i == 0)
{
alAssetList.Add(ob_Asset);
}
}
//ob_Asset.AddClip (alClipList [1] as AudioClip) ;
if (i != 0)
{
alAssetList.Add(ob_Asset);
}
//MessageBox.Show ("Asset Added before loop") ;
for (int j = 1; j < alClipList.Count - 1; j++)
{
ob_Asset = new AudioMediaAsset(m_Channels, m_BitDepth, m_SamplingRate);
ob_Asset.AddClip(alClipList [j] as AudioClip);
alAssetList.Add(ob_Asset);
//MessageBox.Show ("Asset added inside loop") ;
}
ob_Asset = new AudioMediaAsset(m_Channels, m_BitDepth, m_SamplingRate);
if (alClipList.Count > 2)
{
ob_Asset.AddClip(alClipList [alClipList.Count - 1] as AudioClip);
}
if (i == m_alClipList.Count - 1 && ob_Asset.m_alClipList != null)
{
alAssetList.Add(ob_Asset);
//MessageBox.Show ("last Asset added") ;
}
} // bool if ends
}
return(alAssetList);
}