void TryAddClickEvent(QNT_Timestamp current, QNT_Timestamp beat, ClipData clip)
{
if (current == beat)
{
bool addedSound = false;
foreach (ClickTrackEvent ev in clickTrackEvents)
{
if (ev.time == current)
{
addedSound = true;
break;
}
}
if (!addedSound)
{
ClickTrackEvent ev;
ev.clip = clip;
ev.currentSample = 0;
ev.time = current;
clickTrackEvents.Add(ev);
}
}
}
IEnumerator LoadHitsounds()
{
while (KickClip.loadState != AudioDataLoadState.Loaded)
{
yield return(null);
}
while (SnareClip.loadState != AudioDataLoadState.Loaded)
{
yield return(null);
}
while (PercussionClip.loadState != AudioDataLoadState.Loaded)
{
yield return(null);
}
while (ChainStartClip.loadState != AudioDataLoadState.Loaded)
{
yield return(null);
}
while (ChainNoteClip.loadState != AudioDataLoadState.Loaded)
{
yield return(null);
}
while (MeleeClip.loadState != AudioDataLoadState.Loaded)
{
yield return(null);
}
while (MineClip.loadState != AudioDataLoadState.Loaded)
{
yield return(null);
}
while (HiHat_Hit.loadState != AudioDataLoadState.Loaded)
{
yield return(null);
}
while (HiHat_Hit2.loadState != AudioDataLoadState.Loaded)
{
yield return(null);
}
while (HiHat_Open.loadState != AudioDataLoadState.Loaded)
{
yield return(null);
}
while (HiHat_Hit3.loadState != AudioDataLoadState.Loaded)
{
yield return(null);
}
kick = FromAudioClip(KickClip);
snare = FromAudioClip(SnareClip);
percussion = FromAudioClip(PercussionClip);
chainStart = FromAudioClip(ChainStartClip);
chainNote = FromAudioClip(ChainNoteClip);
melee = FromAudioClip(MeleeClip);
mine = FromAudioClip(MineClip);
hihat_hit = FromAudioClip(HiHat_Hit);
hihat_hit2 = FromAudioClip(HiHat_Hit2);
hihat_hit3 = FromAudioClip(HiHat_Hit3);
hihat_open = FromAudioClip(HiHat_Open);
}
public static List <float> Detect(ClipData src, Timeline timeline, QNT_Timestamp start, QNT_Timestamp end)
{
for (int i = 0; i < bpmMatchDatas.Length; i++)
{
bpmMatchDatas[i].match = 0f;
}
if (start == end)
{
return(new List <float>());
}
if (end < start)
{
QNT_Timestamp temp = start;
start = end;
end = temp;
}
float startTime = timeline.TimestampToSeconds(start);
float endTime = timeline.TimestampToSeconds(end);
int channels = src.channels;
int frequency = src.frequency;
uint numSamples = (uint)(frequency * (endTime - startTime) * channels);
int splitFrameSize = BASE_SPLIT_SAMPLE_SIZE;
var volumeArr = new float[Mathf.CeilToInt((float)src.samples.Length / (float)splitFrameSize)];
int powerIndex = 0;
// Sample data analysis start
for (int sampleIndex = 0; sampleIndex < src.samples.Length; sampleIndex += splitFrameSize)
{
float sum = 0f;
for (int frameIndex = sampleIndex; frameIndex < sampleIndex + splitFrameSize; frameIndex++)
{
if (src.samples.Length <= frameIndex)
{
break;
}
// Use the absolute value, because left and right value is -1 to 1
float absValue = Mathf.Abs(src.samples[frameIndex]);
if (absValue > 1f)
{
continue;
}
// Calculate the amplitude square sum
sum += (absValue * absValue);
}
// Set volume value
volumeArr[powerIndex] = Mathf.Sqrt(sum / splitFrameSize);
powerIndex++;
}
// Representing a volume value from 0 to 1
float maxVolume = volumeArr.Max();
for (int i = 0; i < volumeArr.Length; i++)
{
volumeArr[i] = volumeArr[i] / maxVolume;
}
// Create volume diff list
var diffList = new List <float>();
for (int i = 1; i < volumeArr.Length; i++)
{
diffList.Add(Mathf.Max(volumeArr[i] - volumeArr[i - 1], 0f));
}
// Calculate the degree of coincidence in each BPM
int index = 0;
float splitFrequency = (float)frequency / (float)splitFrameSize;
for (int bpm = MIN_BPM; bpm <= MAX_BPM; bpm++)
{
float sinMatch = 0f;
float cosMatch = 0f;
float bps = (float)bpm / 60f;
if (diffList.Count > 0)
{
for (int i = 0; i < diffList.Count; i++)
{
sinMatch += (diffList[i] * Mathf.Cos(i * 2f * Mathf.PI * bps / splitFrequency));
cosMatch += (diffList[i] * Mathf.Sin(i * 2f * Mathf.PI * bps / splitFrequency));
}
sinMatch *= (1f / (float)diffList.Count);
cosMatch *= (1f / (float)diffList.Count);
}
float match = Mathf.Sqrt((sinMatch * sinMatch) + (cosMatch * cosMatch));
bpmMatchDatas[index].bpm = bpm;
bpmMatchDatas[index].match = match;
index++;
}
// Returns a high degree of coincidence BPM
int matchIndex = Array.FindIndex(bpmMatchDatas, x => x.match == bpmMatchDatas.Max(y => y.match));
var sort = bpmMatchDatas.OrderBy(x => x.match).Reverse().ToList();
List <float> results = new List <float>();
for (int i = 0; i < 10; ++i)
{
results.Add(sort[i].bpm);
}
return(results);
}
