Hi All,
I am able to get the Graph to output to speakers using the following setup
ScopedPointer<AudioDeviceManager> devMan = new AudioDeviceManager(); ScopedPointer<AudioProcessorGraph> graph = new AudioProcessorGraph(); ScopedPointer<AudioProcessorPlayer> p = new AudioProcessorPlayer(); AudioProcessorGraph::AudioGraphIOProcessor* out = new AudioProcessorGraph::AudioGraphIOProcessor(AudioProcessorGraph::AudioGraphIOProcessor::audioOutputNode); // .... Setup the graph .... p->setProcessor(graph); devMan->addAudioCallback(p);
However, when I try to render this to a file, I just get silence.
ScopedPointer<WavAudioFormat> wafmt = new WavAudioFormat(); ScopedPointer<AudioFormatWriter> writer = wafmt->createWriterFor(new FileOutputStream(f), 48000, 2, 32, nullptr, 0); int64 samplesRemaining = length; ScopedPointer<AudioBuffer<float> > buff = new AudioBuffer<float>(2, 512); while (samplesRemaining > 0) { out->processBlock(*buff, *midiBuff); writer->writeFromAudioSampleBuffer(*buff, 0, 512); samplesRemaining -= 512; } writer->flush();
What addition steps should I be taking? Should I be calling "processBlock" on the output or the graph?
Many thanks,
Tim