void DeviceTestApp::setupNoise()
{
mGen = audio::master()->makeNode( new audio::GenNoiseNode() );
mGen->connect( mGain );
mGen->enable();
}
void DeviceTestApp::setupSine()
{
mGen = audio::master()->makeNode( new audio::GenSineNode() );
mGen->setFreq( 440 );
mGen->connect( mGain );
mGen->enable();
}
void DeviceTestApp::setupSendStereo()
{
auto ctx = audio::master();
ctx->disconnectAllNodes();
auto router = ctx->makeNode( new audio::ChannelRouterNode( audio::Node::Format().channels( mOutputDeviceNode->getNumChannels() ) ) );
auto upmix = ctx->makeNode( new audio::Node( audio::Node::Format().channels( 2 ) ) );
int channelIndex = mSendChannelInput.getValue();
CI_LOG_V( "routing input to channel: " << channelIndex );
mGen >> upmix >> mGain >> router->route( 0, channelIndex );
router >> mMonitor >> ctx->getOutput();
mGen->enable();
}
void WebAudioApp::setup()
{
Context::setMaster( new ContextWebAudio, new DeviceManagerWebAudio );
auto ctx = audio::master();
mGen = ctx->makeNode( new audio::GenSineNode );
mGain = ctx->makeNode( new audio::GainNode );
mGen->setFreq( 220 );
mGain->setValue( 0.5f );
// connections can be made this way or with connect(). The master Context's getOutput() is the speakers by default.
mGen >> mGain >> ctx->getOutput();
mGen->enable();
ctx->enable();
}
void NodeBasic::setup()
{
// You use the audio::Context to make new audio::Node instances (audio::master() is the speaker-facing Context).
auto ctx = audio::master();
mGen = ctx->makeNode( new audio::GenSineNode );
mGain = ctx->makeNode( new audio::GainNode );
mGen->setFreq( 220 );
mGain->setValue( 0.5f );
// connections can be made this way or with connect(). The master Context's getOutput() is the speakers by default.
mGen >> mGain >> ctx->getOutput();
// Node's need to be enabled to process audio. EffectNode's are enabled by default, while NodeSource's (like Gen) need to be switched on.
mGen->enable();
// Context also must be started. Starting and stopping this controls the entire DSP graph.
ctx->enable();
}
void NodeSubclassingApp::setup()
{
auto ctx = audio::master();
// We create an audio graph that demonstrates the CustomTremeloNode bing used in combination with cinder-defined Node's.
mGenNode = ctx->makeNode( new audio::GenOscNode( audio::WaveformType::SQUARE, 220 ) );
mMonitorNode = ctx->makeNode( new audio::MonitorNode );
auto gain = ctx->makeNode( new audio::GainNode( 0.2f ) );
// Here we make our custom Node. For the sake of demonstration, its channel count is forced to stereo.
mCustomTremeloNode = ctx->makeNode( new CustomTremoloNode( audio::Node::Format().channels( 2 ) ) );
mGenNode >> mCustomTremeloNode >> mMonitorNode >> gain >> ctx->getOutput();
// Turn on the GenNode and fire up the Context.
mGenNode->enable();
ctx->enable();
console() << "\naudio graph:\n" << ctx->printGraphToString() << endl;
}
