demo-stretcher.cc File Reference

#include <Nsound/NsoundAll.h>
#include <iostream>

Include dependency graph for demo-stretcher.cc:

Go to the source code of this file.

Functions
AudioStream	stretch_to (const AudioStream &x, float64 new_duration)
int	main (void)

Function Documentation

AudioStream stretch_to	(	const AudioStream &	x,
		float64	new_duration
	)

Definition at line 19 of file demo-stretcher.cc.

References Nsound::AudioStream::getDuration(), Nsound::AudioStream::getSampleRate(), and Nsound::Stretcher::showProgress().

Referenced by main().

{
    float64 x_dur = x.getDuration();

    float64 ratio = new_duration / x_dur;

    Stretcher st(x.getSampleRate());

    st.showProgress(true);

    return st.timeShift(x, ratio);
}

int main

(

void

)

Definition at line 34 of file demo-stretcher.cc.

References Nsound::AudioStream::add(), Nsound::AudioStream::getDuration(), Nsound::AudioStream::getLength(), Nsound::AudioStream::getSampleRate(), Nsound::AudioStream::normalize(), and stretch_to().

{
    AudioStream x0("california.wav");

    float64 dur = x0.getDuration();

    AudioStream x1 = stretch_to(x0, 1.15 * dur);
    AudioStream x2 = stretch_to(x0, 1.30 * dur);

    // The longest one is x2, so add all of them to x2.

    cout
        << "x2.getLength() = " << x2.getLength() << "\n"
        << "x1.getLength() = " << x1.getLength() << "\n"
        << "x0.getLength() = " << x0.getLength() << "\n";

    x2.add(x0, 1.30 * dur - dur);
    x2.add(x1, 1.15 * dur - dur);

    for(uint32 i = 0; i < x0.getSampleRate() / 2.0; ++i)
    {
        x2 << 0.0;
    }

    x2.normalize();
    x2 *= 0.666;

    cout << "x2.getLength() = " << x2.getLength() << "\n";

    x2 >> "demo-st.wav";

    return 0;
}