void Update()
{
float[] s = JAudioAnalysis.Instance().spectrum;
for (int i = 0; i < s.Length; i++)
{
int sample_idx = i / m_sampleStep;
m_sampleSpectrum[sample_idx] = m_sampleSpectrumSmoother[sample_idx].AddData(s[i]);
}
}
// Update is called once per frame
void Update()
{
float[] m_spectrum = JAudioAnalysis.Instance().spectrum;
// Analysis 2: 将所有频率在时间上平滑，分析曲线在时间上的突变
for (int i = 0; i < m_spectrum.Length; i++)
{
m_spikeSpectrum[i] = m_spectrumSmoother[i].AddData(m_spectrum[i]);
}
}
// Update is called once per frame
void Update()
{
float[] s = JAudioAnalysis.Instance().spectrum;
m_audioSpectrumCache.AddData(s, Time.fixedTime - m_startCacheSpectrumTime);
if (Time.time < 11.0f)
{
return;
}
DrawByLine();
}
void Update()
{
// 获取曲线
AudioListener.GetSpectrumData(m_spectrum, 0, FFTWindow.Rectangular);
float[] s = JAudioAnalysis.Instance().spectrum;
for (int i = 0; i < s.Length; i++)
{
m_ampMin = Mathf.Min(m_ampMin, s[i]);
m_ampMax = Mathf.Max(m_ampMax, s[i]);
}
//DebugDrawSpectrumColor();
}
// Update is called once per frame
void Update()
{
// Analysis 1: 计算曲线在不同频率上的最大值
float count_all = 0;
float[] s = JAudioAnalysis.Instance().spectrum;
for (int i = 0; i < s.Length; i++)
{
count_all += s[i];
}
count_all /= JAudioAnalysis.spectrumSize;
m_amp = m_ampSmoother.AddData(1 - Mathf.Clamp((count_all - JAudioAnalysis.Instance().ampMin) / (JAudioAnalysis.Instance().ampMax - JAudioAnalysis.Instance().ampMin), 0, 1));
}
void FormTexture()
{
int m_spectrumSize = JAudioAnalysis.spectrumSize;
float m_ampMin = JAudioAnalysis.Instance().ampMin;
float m_ampMax = JAudioAnalysis.Instance().ampMax;
Color[] color_buf = new Color[width * draw_step];
int last_draw_x = -1;
float all_pixel_width = Mathf.Log(m_spectrumSize);
float each_pixel_width = all_pixel_width / width;
for (int x = 0; x < m_spectrumSize; ++x)
{
int draw_x = (int)(Mathf.Log(x + 1) / all_pixel_width * width);
if (draw_x == last_draw_x)
{
continue;
}
if (draw_x >= width)
{
break;
}
float amp = JAudioAnalysis.Instance().spectrum[x];
float ratio = (amp - m_ampMin) / Mathf.Max(1, m_ampMax - m_ampMin) * 5;
for (int step_y = 0; step_y < draw_step; ++step_y)
{
for (int step_x = last_draw_x < 0 ? 0 : last_draw_x; step_x <= draw_x; ++step_x)
{
color_buf[step_x + (step_y * width)] = new Color(ratio, 0, 0, 1);
}
}
last_draw_x = draw_x;
}
m_texture.SetPixels(0, cur_draw_height, width, draw_step, color_buf);
m_texture.Apply();
cur_draw_height = (cur_draw_height + draw_step) % height;
}
void DrawByLine()
{
float last_draw_x = -1;
for (int x = 0; x < JAudioAnalysis.spectrumSize; ++x)
{
if (Mathf.Log(x + 1) - last_draw_x < 1.0f / Screen.width * 2)
{
continue;
}
for (int y = 0; y < m_audioSpectrumCache.size; ++y)
{
float amp = m_audioSpectrumCache.spectrumCache[y, x];
float ratio = (amp - JAudioAnalysis.Instance().ampMin) / Mathf.Max(1, JAudioAnalysis.Instance().ampMax - JAudioAnalysis.Instance().ampMin) * 5;
Color c = new Color(ratio, 0, 0, 1);
Debug.DrawLine(new Vector3(Mathf.Log(x + 1), y * 10.0f / m_audioSpectrumCache.size - 5, -1),
new Vector3(Mathf.Log(x + 1), (y + 1) * 10.0f / m_audioSpectrumCache.size - 5, -1),
c);
last_draw_x = Mathf.Log(x + 1);
}
}
}
void FormatWholeTexture()
{
WAudioAnalysis.AudioSpectrumDataCache m_audioSpectrumCache = JAudioAnalysis_offlineSpectrum.Instance().m_audioSpectrumCache;
int m_spectrumSize = JAudioAnalysis.spectrumSize;
float m_ampMin = JAudioAnalysis.Instance().ampMin;
float m_ampMax = JAudioAnalysis.Instance().ampMax;
int last_draw_x = -1;
float all_pixel_width = Mathf.Log(m_spectrumSize);
float each_pixel_width = all_pixel_width / width;
for (int x = 0; x < m_spectrumSize; ++x)
{
int draw_x = (int)(Mathf.Log(x + 1) / all_pixel_width * width);
if (draw_x == last_draw_x)
{
continue;
}
if (draw_x >= width)
{
break;
}
for (int y = 0; y < m_audioSpectrumCache.size && y < height; ++y)
{
float amp = m_audioSpectrumCache.spectrumCache[y, x];
float ratio = (amp - m_ampMin) / Mathf.Max(1, m_ampMax - m_ampMin) * 5;
Color c = new Color(ratio, 0, 0, 1);
for (int step_x = last_draw_x < 0 ? 0 : last_draw_x; step_x <= draw_x; ++step_x)
{
m_texture.SetPixel(step_x, y, c);
}
}
last_draw_x = draw_x;
}
m_texture.Apply();
}
private void Awake()
{
GetComponent <AudioSource>().Play();
m_instance = this;
}
