AudioSettings.Reset

参数

返回值

bool 如果所有设置都能成功应用，则为 True。

描述

更改设备配置并使用参数 deviceWasChanged=false 调用 AudioSettings.OnAudioConfigurationChanged 委托。不能保证使用指定的精确设置，但 Unity 会自动使用它支持的最接近的匹配项。注意：如果在异步加载对象时调用 AudioSettings.Reset，这可能会导致主线程停顿。

using UnityEngine;
using System.Collections;

public class TestAudioConfiguration : MonoBehaviour
{
    void Start()
    {
        AudioSettings.OnAudioConfigurationChanged += OnAudioConfigurationChanged;
    }

    void OnAudioConfigurationChanged(bool deviceWasChanged)
    {
        Debug.Log(deviceWasChanged ? "Device was changed" : "Reset was called");
        if (deviceWasChanged)
        {
            AudioConfiguration config = AudioSettings.GetConfiguration();
            config.dspBufferSize = 64;
            AudioSettings.Reset(config);
        }
        GetComponent<AudioSource>().Play();
    }

    static int[] validSpeakerModes =
    {
        (int)AudioSpeakerMode.Mono,
        (int)AudioSpeakerMode.Stereo,
        (int)AudioSpeakerMode.Quad,
        (int)AudioSpeakerMode.Surround,
        (int)AudioSpeakerMode.Mode5point1,
        (int)AudioSpeakerMode.Mode7point1
    };

    static int[] validDSPBufferSizes =
    {
        32, 64, 128, 256, 340, 480, 512, 1024, 2048, 4096, 8192
    };

    static int[] validSampleRates =
    {
        11025, 22050, 44100, 48000, 88200, 96000,
    };

    static int[] validNumRealVoices =
    {
        1, 2, 4, 8, 16, 32, 50, 64, 100, 128, 256, 512,
    };

    static int[] validNumVirtualVoices =
    {
        1, 2, 4, 8, 16, 32, 50, 64, 100, 128, 256, 512,
    };

    int GUIRow(string name, int[] valid, int value, ref bool modified)
    {
        GUILayout.BeginHorizontal();
        GUILayout.Button(name + "=" + value);
        for (int i = 0; i < valid.Length; i++)
        {
            string s = valid[i].ToString();
            if (valid[i] == value)
                s = "[" + s + "]";
            if (GUILayout.Button(s))
            {
                value = valid[i];
                modified = true;
            }
        }
        GUILayout.EndHorizontal();
        return value;
    }

    void OnGUI()
    {
        AudioSource source = GetComponent<AudioSource>();
        bool modified = false;

        AudioConfiguration config = AudioSettings.GetConfiguration();

        config.speakerMode = (AudioSpeakerMode)GUIRow("speakerMode", validSpeakerModes, (int)config.speakerMode, ref modified);
        config.dspBufferSize = GUIRow("dspBufferSize", validDSPBufferSizes, config.dspBufferSize, ref modified);
        config.sampleRate = GUIRow("sampleRate", validSampleRates, config.sampleRate, ref modified);
        config.numRealVoices = GUIRow("RealVoices", validNumRealVoices, config.numRealVoices, ref modified);
        config.numVirtualVoices = GUIRow("numVirtualVoices", validNumVirtualVoices, config.numVirtualVoices, ref modified);

        if (modified)
            AudioSettings.Reset(config);

        if (GUILayout.Button("Start"))
            source.Play();

        if (GUILayout.Button("Stop"))
            source.Stop();
    }
}