private void TestPitchDetection(Func <int, IAudioSamplesAnalyzer> audioSamplesAnalyzerProvider)
{
MicProfile micProfile = CreateDummyMicProfile();
string assetsPath = Application.dataPath;
string sineWaveToneDir = assetsPath + "/Common/Audio/SineWaveTones/";
Dictionary <string, string> pathToExpectedMidiNoteNameMap = new();
pathToExpectedMidiNoteNameMap.Add(sineWaveToneDir + "sine-wave-a3-220hz.ogg", "A3");
pathToExpectedMidiNoteNameMap.Add(sineWaveToneDir + "sine-wave-a4-440hz.ogg", "A4");
pathToExpectedMidiNoteNameMap.Add(sineWaveToneDir + "sine-wave-a5-880hz.ogg", "A5");
pathToExpectedMidiNoteNameMap.Add(sineWaveToneDir + "sine-wave-c2-61,74hz.ogg", "C2");
pathToExpectedMidiNoteNameMap.Add(sineWaveToneDir + "sine-wave-c4-261,64hz.ogg", "C4");
pathToExpectedMidiNoteNameMap.Add(sineWaveToneDir + "sine-wave-c6-1046,50hz.ogg", "C6");
foreach (KeyValuePair <string, string> pathAndNoteName in pathToExpectedMidiNoteNameMap)
{
// Load the audio clip
string uri = "file://" + pathAndNoteName.Key;
AudioClip audioClip = AudioUtils.GetAudioClipUncached(uri, false);
float[] samples = new float[audioClip.samples];
audioClip.GetData(samples, 0);
// Analyze the samples
IAudioSamplesAnalyzer audioSamplesAnalyzer = audioSamplesAnalyzerProvider(audioClip.frequency);
PitchEvent pitchEvent = audioSamplesAnalyzer.ProcessAudioSamples(samples, 0, samples.Length - 1, micProfile);
// Check result
Assert.NotNull(pitchEvent, $"No pitch detected when analyzing audio resource {uri}");
string expectedName = pathAndNoteName.Value;
string analyzedName = MidiUtils.GetAbsoluteName(pitchEvent.MidiNote);
Assert.AreEqual(expectedName, analyzedName,
$"Expected {expectedName} but was {analyzedName} when analyzing audio resource {uri}");
}
}
private AudioClip LoadAndCacheAudioClip(string path, bool streamAudio)
{
if (!File.Exists(path))
{
Debug.LogError("File does not exist: " + path);
return(null);
}
AudioClip audioClip = AudioUtils.GetAudioClipUncached(path, streamAudio);
if (audioClip == null)
{
Debug.LogError("Could not load not AudioClip from path: " + path);
return(null);
}
AddAudioClipToCache(path, audioClip, streamAudio);
return(audioClip);
}
