c# – 音乐的音高检测

我正在制作一个基于节奏的音乐游戏,你应该(理论上)能够选择你想要的任何歌曲.这是使用C#在Unity(5.4.1)中创建的.

实时地检测并通过可视化器向用户显示的歌曲的音高.

我遇到的问题是我创建了一个可视化工具,但这几乎没有显示更高音调的音符.我担心这是因为(和大多数音乐一样)一次播放一些音高(为了测试我在等待声音人给我音乐时使用Darude Sandstorm).最后,我希望这种音高检测能够告诉用户是高音,中音还是低音.

我试过用了
    GetComponent< FFT>()PitchValue.
和
   AudioListener.GetSpectrumData(2048,FFtwindow.Hamming);

我想恐惧的是,它不能在一次播放多个音高的歌曲上完成(即基础覆盖高音高).

我很乐意听到任何建议或知道是否有人克服了类似的问题.

这是我现在正在使用的一个例子,我已经尝试了许多不同的在线解决方案(其中一些信息实际上来自于评论代码中链接的教程),如果我继续,我打算完全参考这条道路(我已经在这段时间工作了几个星期).它是一个非常可视化的,但我似乎无法充分利用它.这可以作为没有if else语句的可视化工具,这正是我正在进行一些试验和错误的地方.我跟随this tutorial

@H_502_24@//the class{ using UnityEngine; using System.Collections; public class soundspectrume : MonoBehavIoUr { public GameObject prefab; // the cube prefab public int numberOfObjects = 25; // number of cubes to make visualizer public float radius = 5f; // radius of circle public GameObject[] cubes; //array of the created cubes public float PitchValue; public Color mycolour; void Start() { PitchValue = GameObject.Find("Main Camera").GetComponent<FFT>().PitchValue;//this declares the pitch value but it will always be 0 as it is declared before the musics intro on start for (int i = 0; i < numberOfObjects; i++) //loop to create the cubes { float angle = i * Mathf.PI * 2 / numberOfObjects; Vector3 pos = new Vector3(Mathf.Cos(angle),Mathf.Sin(angle)) * radius; // this code is from unity docs https://docs.unity3d.com/Manual/InstantiatingPrefabs.html Instantiate(prefab,pos,Quaternion.identity); //instanciate's cubes } cubes = GameObject.FindGameObjectsWithTag("cube"); } // Update is called once per frame void Update () { PitchValue = GameObject.Find("Main Camera").GetComponent<FFT>().PitchValue; print(PitchValue); float[] spectrum = AudioListener.GetSpectrumData(2048,FFtwindow.Hamming); // always move sample to power of 2,max will make cubes move without punch lower numbers less control. for (int i = 0; i < numberOfObjects; i++) { if (PitchValue <= 200) { Vector3 prevIoUsscale = cubes[i].transform.localScale; prevIoUsscale.y = spectrum[i] * 500; //take spectrum number and multiply,higher frequency songs will need greater multiplier cubes[i].transform.localScale = prevIoUsscale; } else if (PitchValue >= 201) { Vector3 prevIoUsscale = cubes[i].transform.localScale; prevIoUsscale.y = spectrum[i] * 1; //take spectrum number and multiply,higher frequency songs will need greater multiplier cubes[i].transform.localScale = prevIoUsscale; } else if (PitchValue >= 500) { Vector3 prevIoUsscale = cubes[i].transform.localScale; prevIoUsscale.y = spectrum[i] * 100; //take spectrum number and multiply,higher frequency songs will need greater multiplier cubes[i].transform.localScale = prevIoUsscale; } } } }

Attached image with some of the pitch output values printed

感谢您的评论到目前为止,抱歉我没有在开始时附上这个

解决方法

如果有人在那里工作类似的东西,我设法分开球场,因为他们使用阵列来访问FFT频谱数据.

欢迎所有反馈.

我通过学习FFT如何工作(认真推荐可汗学院)并找到这个很棒的家伙视频 – https://www.youtube.com/watch?v=V_8JSWVT36k,他在JS中做同样的事情.

@H_502_24@using UnityEngine; using System.Collections; public class SPECTRUMANALYZER : MonoBehavIoUr { void Update( ) { float[] spectrum = new float[1024]; AudioListener.GetSpectrumData(spectrum,FFtwindow.Rectangular ); float l1 = spectrum [0] + spectrum [2] + spectrum [4]; float l2 = spectrum [10] + spectrum [11] + spectrum [12]; float l3 = spectrum[20] + spectrum [21] + spectrum [22]; float l4 = spectrum [40] + spectrum [41] + spectrum [42] + spectrum [43]; float l5 = spectrum [80] + spectrum [81] + spectrum [82] + spectrum [83]; float l6 = spectrum [160] + spectrum [161] + spectrum [162] + spectrum [163]; float l7 = spectrum [320] + spectrum [321] + spectrum [322] + spectrum [323]; Debug.Log(l7); GameObject [] cubes = GameObject.FindGameObjectsWithTag("CUBE"); for( int i = 1; i < cubes.Length; i++ ) { switch (i) { case 1: cubes[i].gameObject.transform.localScale = new Vector3(1,l1 * 100,0.5f); // base drum break; case 2: cubes[i].gameObject.transform.localScale = new Vector3(1,l2 * 200,0.5f); // base guitar break; case 3: cubes[i].gameObject.transform.localScale = new Vector3(1,l3 * 400,0.5f); break; case 4: cubes[i].gameObject.transform.localScale = new Vector3(1,l4 * 800,0.5f); break; case 5: cubes[i].gameObject.transform.localScale = new Vector3(1,l5 * 1600,0.5f); break; case 6: cubes[i].gameObject.transform.localScale = new Vector3(1,l6 * 3200,0.5f); break; case 7: cubes[i].gameObject.transform.localScale = new Vector3(1,l7 * 6400,0.5f); //*tsk tsk tsk break; } } }

}