anonymous_namespace{ClipSegment.cpp} Namespace Reference

Functions
TimeAndPitchInterface::Parameters	GetStretchingParameters (const ClipInterface &clip)
sampleCount	GetTotalNumSamplesToProduce (const ClipInterface &clip, double durationToDiscard)

Detailed Description

---

Audacity: A Digital Audio Editor

ClipSegment.cpp

Matthieu Hodgkinson

Function Documentation

GetStretchingParameters()

TimeAndPitchInterface::Parameters anonymous_namespace{ClipSegment.cpp}::GetStretchingParameters

(

const ClipInterface &

clip

)

Definition at line 22 of file ClipSegment.cpp.

{
   TimeAndPitchInterface::Parameters params;
   params.timeRatio = clip.GetStretchRatio();
   params.pitchRatio = std::pow(2., clip.GetCentShift() / 1200.);
   params.preserveFormants =
      clip.GetPitchAndSpeedPreset() == PitchAndSpeedPreset::OptimizeForVoice;
   return params;
}

References ClipInterface::GetCentShift(), ClipInterface::GetPitchAndSpeedPreset(), ClipTimes::GetStretchRatio(), OptimizeForVoice, and params.

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GetTotalNumSamplesToProduce()

sampleCount anonymous_namespace{ClipSegment.cpp}::GetTotalNumSamplesToProduce	(	const ClipInterface &	clip,
		double	durationToDiscard
	)

Definition at line 33 of file ClipSegment.cpp.

{
   return sampleCount { clip.GetVisibleSampleCount().as_double() *
                           clip.GetStretchRatio() -
                        durationToDiscard * clip.GetRate() + .5 };
}

References sampleCount::as_double(), ClipTimes::GetRate(), ClipTimes::GetStretchRatio(), and ClipTimes::GetVisibleSampleCount().

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