example3.cc File Reference

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

Include dependency graph for example3.cc:

Go to the source code of this file.

Functions
Buffer	drum (float32 duration, float32 attack_time, float32 high_frequency, float32 low_frequency, float32 tension, float32 resident_frequency)
int	my_main (void)
int	main (void)

Variables
float64	sr = 44100.0
uint64	SAMPLE_RATE = static_cast<uint64>(sr)
uint64	BITS_PER_SAMPLE = 16

Function Documentation

Buffer drum	(	float32	duration,
		float32	attack_time,
		float32	high_frequency,
		float32	low_frequency,
		float32	tension,
		float32	resident_frequency
	)

Definition at line 30 of file example3.cc.

References Nsound::Generator::drawLine(), Nsound::Generator::drawParabola(), Nsound::Generator::generate(), and sr.

Referenced by my_main().

{
    Sine sin(sr);

    Buffer frequency_sweep;
    frequency_sweep
        << sin.drawLine(attack_time, high_frequency, low_frequency)
        << sin.drawLine((duration - attack_time), low_frequency, low_frequency);

    Buffer hz_20 = sin.generate(duration, resident_frequency);

    Buffer rezzy = hz_20 * frequency_sweep;

    Buffer parabola = sin.drawParabola(duration, 1.0, duration / 2, 0.25, 0.0);

    rezzy *= parabola;

    Buffer temp1 = rezzy * tension;

    frequency_sweep -= temp1;

    Buffer audio = sin.generate(duration, frequency_sweep);

    audio *= sin.drawParabola(duration, 1.0, 0.5 * duration, 0.3, 0.0);

    return audio;
}

int my_main

(

void

)

Definition at line 65 of file example3.cc.

References drum(), Nsound::ReverberationRoom::filter(), Nsound::DrumBD01::play(), Nsound::DrumKickBass::play(), Nsound::Hat::play(), Nsound::Generator::silence(), and sr.

Referenced by main().

{
    Sine sine(sr);

    DrumBD01     db01(sr);
    DrumKickBass dkb(sr, 266, 0.0);

    AudioStream out(sr, 1);

    out << db01.play()
        << sine.silence(0.25)
        << dkb.play()
        << sine.silence(0.25)

        // duration,  attack, high f, low f, tension, ressonance
        << drum(0.5f, 0.012f,    160,    51,    0.9f,         54)
        << drum(0.5f, 0.012f,    160,    51,    0.9f,         54)
        << drum(0.5f, 0.012f,    160,    51,    0.9f,         54)
        << drum(0.5f, 0.012f,    160,    51,    0.9f,         54)
        << sine.silence(0.25);

    out *= 0.5;

    Hat hat(sr);

    out << 0.666 * hat.play() << sine.silence(0.25);

    out >> "example3.wav";

    // ReverberationRoom(sample_rate, room_feedback, wet_percent, dry_percent, low_pass_freq)
    ReverberationRoom room(sr, 0.60, 0.5, 1.0, 100.0);

    AudioStream out2 = 0.5 * room.filter(out);

    out2 >> "example3_reverb.wav";

    // Try to play the audio

    try
    {
        AudioPlayback pb(sr, 2, 16);
        out2 >> pb;
    }
    catch(std::exception & e)
    {
        cerr << "Warning: Could not play audio: " << e.what() << endl;
    }

    return 0;
}

int main

(

void

)

Definition at line 117 of file example3.cc.

References my_main().

{
    try
    {
        my_main();
    }
    catch(std::exception & e)
    {
        cerr << "Exception: " << e.what() << endl;
        return 1;
    }

    return 0;
}

Variable Documentation

float64 sr = 44100.0

Definition at line 24 of file example3.cc.

Referenced by Nsound::Buffer::_get_resample(), drum(), Nsound::FFTransform::fft(), FilterLeastSquaresFIR_UnitTest(), main(), my_main(), Nsound::AudioStream::read(), and Nsound::Spectrogram::Spectrogram().

uint64 SAMPLE_RATE = static_cast<uint64>(sr)

Definition at line 25 of file example3.cc.

Referenced by main().

uint64 BITS_PER_SAMPLE = 16

Definition at line 26 of file example3.cc.