示例#1
0
文件: main.cpp 项目: neilogd/soloud
int DemoEntry(int argc, char *argv[])
{
    gMusic.load("audio/Jakim - Aboriginal Derivatives.mon");
    gMusic.setParams(10);

    gEcho.setParams(0.2f, 0.5f, 0.05f);
    gBiquad.setParams(SoLoud::BiquadResonantFilter::LOWPASS, 44100, 4000, 2);

    gMusic.setLooping(1);
    gMusic.setFilter(0, &gBiquad);
    gMusic.setFilter(1, &gLofi);
    gMusic.setFilter(2, &gEcho);
    gMusic.setFilter(3, &gDCRemoval);

    gSoloud.init(SoLoud::Soloud::CLIP_ROUNDOFF | SoLoud::Soloud::ENABLE_VISUALIZATION);

    gMusichandle = gSoloud.play(gMusic);
    waveform = SoLoud::Monotone::SAW;
    gMusic.setParams(hwchannels, waveform);

    return 0;
}
示例#2
0
// Entry point
int main(int argc, char *argv[])
{
	DemoInit();

	gMusic.load("audio/Jakim - Aboriginal Derivatives.mon");
	gMusic.setParams(10);

	gEcho.setParams(0.2f, 0.5f, 0.05f);
	gBiquad.setParams(SoLoud::BiquadResonantFilter::LOWPASS, 44100, 4000, 2);

	gMusic.setLooping(1);	
	gMusic.setFilter(0, &gBiquad);
	gMusic.setFilter(1, &gLofi);
	gMusic.setFilter(2, &gEcho);
	gMusic.setFilter(3, &gDCRemoval);

	gSoloud.init(SoLoud::Soloud::CLIP_ROUNDOFF | SoLoud::Soloud::ENABLE_VISUALIZATION);

	gMusichandle = gSoloud.play(gMusic);


	float filter_param0[4] = { 0, 0, 0, 0 };
	float filter_param1[4] = { 1000, 8000, 0, 0 };
	float filter_param2[4] = { 2, 3,  0, 0 };
	
	int hwchannels = 4;
	int waveform = 0;

	// Main loop: loop forever.
	while (1)
	{
		gSoloud.setFilterParameter(gMusichandle, 0, 0, filter_param0[0]);
		gSoloud.setFilterParameter(gMusichandle, 1, 0, filter_param0[1]);
		gSoloud.setFilterParameter(gMusichandle, 2, 0, filter_param0[2]);
		gSoloud.setFilterParameter(gMusichandle, 3, 0, filter_param0[3]);

		gSoloud.setFilterParameter(gMusichandle, 0, 2, filter_param1[0]);
		gSoloud.setFilterParameter(gMusichandle, 0, 3, filter_param2[0]);
		gSoloud.setFilterParameter(gMusichandle, 1, 1, filter_param1[1]);
		gSoloud.setFilterParameter(gMusichandle, 1, 2, filter_param2[1]);

		DemoUpdateStart();

		float *buf = gSoloud.getWave();
		float *fft = gSoloud.calcFFT();

		ONCE(ImGui::SetNextWindowPos(ImVec2(500, 20)));
		ImGui::Begin("Output");
		ImGui::PlotLines("##Wave", buf, 256, 0, "Wave", -1, 1, ImVec2(264, 80));
		ImGui::PlotHistogram("##FFT", fft, 256/2, 0, "FFT", 0, 10, ImVec2(264,80),8);
		ImGui::Text("Music volume     : %d%%", (int)floor(gSoloud.getVolume(gMusichandle) * 100));
		ImGui::Text("Active voices    : %d", gSoloud.getActiveVoiceCount());
		ImGui::End();

		ONCE(ImGui::SetNextWindowPos(ImVec2(20, 20)));
		
		ImGui::Begin("Control");
		if (ImGui::SliderInt("Channels", &hwchannels, 1, 4))
		{
			gMusic.setParams(hwchannels, waveform);
		}
		if (ImGui::CollapsingHeader("Waveform", (const char*)0, true, false))
		{
			if (ImGui::RadioButton("Square", waveform == SoLoud::Monotone::SQUARE))
			{
				waveform = SoLoud::Monotone::SQUARE;
				gMusic.setParams(hwchannels, waveform);
			}
			if (ImGui::RadioButton("Saw", waveform == SoLoud::Monotone::SAW))
			{
				waveform = SoLoud::Monotone::SAW;
				gMusic.setParams(hwchannels, waveform);
			}
			if (ImGui::RadioButton("Sin", waveform == SoLoud::Monotone::SIN))
			{
				waveform = SoLoud::Monotone::SIN;
				gMusic.setParams(hwchannels, waveform);
			}
			if (ImGui::RadioButton("SawSin", waveform == SoLoud::Monotone::SAWSIN))
			{
				waveform = SoLoud::Monotone::SAWSIN;
				gMusic.setParams(hwchannels, waveform);
			}
		}
		ImGui::Separator();
		ImGui::Text("Biquad filter (lowpass)");
		ImGui::SliderFloat("Wet##4", &filter_param0[0], 0, 1);
		ImGui::SliderFloat("Frequency##4", &filter_param1[0], 0, 8000);
		ImGui::SliderFloat("Resonance##4", &filter_param2[0], 1, 20);
		ImGui::Separator();
		ImGui::Text("Lofi filter");
		ImGui::SliderFloat("Wet##2", &filter_param0[1], 0, 1);
		ImGui::SliderFloat("Rate##2", &filter_param1[1], 1000, 8000);
		ImGui::SliderFloat("Bit depth##2", &filter_param2[1], 0, 8);
		ImGui::Separator();
		ImGui::Text("Echo filter");
		ImGui::SliderFloat("Wet##3", &filter_param0[2], 0, 1);
		ImGui::Separator();
		ImGui::Text("DC removal filter");
		ImGui::SliderFloat("Wet##1", &filter_param0[3], 0, 1);
		ImGui::End();
		DemoUpdateEnd();
	}
	return 0;
}