/// <summary>
/// Scans segment of audio channel to find damaged samples
/// and repai them
/// </summary>
/// <param name="audioData"></param>
/// <param name="segmentStart"></param>
/// <param name="segmentEnd"></param>
/// <param name="progress"></param>
/// <param name="cpuCore"></param>
private static void ScanSegment(
AudioData audioData,
int segmentStart,
int segmentEnd,
IProgress <double> progress,
int cpuCore)
{
var lastProcessedSample = 0;
// cycle to check every sample
for (var index = segmentStart; index < segmentEnd; index++)
{
// only core #0 reports progress
if (cpuCore == 0)
{
ThrottledReportProgress(progress, index, segmentEnd);
}
if (index <= lastProcessedSample || !ClickDetector.IsSampleSuspicious(
audioData,
index))
{
continue;
}
var maxLength = HelperCalculator.GetMaxLength(audioData, index);
var result = ClickLengthFinder.FindLengthOfClick(
audioData,
index,
maxLength,
lastProcessedSample);
if (!result.Success)
{
continue;
}
ClickRepairer.Repair(audioData, result.Position, result.Length);
audioData.AddClickToList(new AudioClick(
result.Position,
result.Length,
HelperCalculator.CalculateDetectionLevel(audioData, result.Position),
audioData,
audioData.GetCurrentChannelType()));
lastProcessedSample = result.Position + result.Length + 1;
}
}
private static FixResult TryToFix(
AudioData audioData,
int index,
int maxLength,
int minLength)
{
var result = new FixResult
{
Success = false,
Position = index,
Length = minLength,
ErrSum = float.MaxValue
};
ClickRepairer.Repair(audioData, index, minLength);
while (result.Length < maxLength)
{
ClickRepairer.Repair(audioData, index + result.Length, 1);
result.Length++;
if (!SeveralSamplesInARowAreSuspicious(
audioData, index + result.Length, 3))
{
result.ErrSum = CalcErrSum(
audioData, index + result.Length, 4);
// if click fixed
if (result.ErrSum < 0.01F) //0.005F //0.03F
{
result.Success = true;
break;
}
}
}
return(result);
}