Why Is My Unity VideoPlayer Not Playing Audio on Windows 10?

solve the problem of audio playback in the UNITY VideoPlayer on Windows 10

Unity's VideoPlayer and VideoClip API provides a powerful way to play videos in the project. However, some users have encountered audio playback problems on the desktop platform.

Problem description:

A unity developer cannot play audio when using VideoPlayer API on Windows 10, even if the video can be displayed normally.

Solution:

After investigation, it is found that the correct order of audio attributes is essential for successful audio playback. The following modification of the code fragment provided solved this problem:

By setting the audio output mode and audio track attributes before calling Prepare (), the audio playback is now enabled.

Other tips:

<code class="language-c#">// 在准备视频之前将音频输出设置为AudioSource
videoPlayer.audioOutputMode = VideoAudioOutputMode.AudioSource;

// 启用音频轨道并设置目标AudioSource
videoPlayer.EnableAudioTrack(0, true);
videoPlayer.SetTargetAudioSource(0, audioSource);

// 准备视频
videoPlayer.Prepare();</code>

If the "being preparing video" log message is retained indefinitely, please consider adding timeout to the While to prevent the script from stagnation:

• Make sure the supported video format is compatible with your target platform. See Unity's document to obtain a complete list of support formats.

If necessary, you can use the URL format of the platform to play videos directly from the StreamingAsSETS folder folder:

<code class="language-c#">WaitForSeconds waitTime = new WaitForSeconds(5);
while (!videoPlayer.isPrepared)
{
    Debug.Log("正在准备视频");
    yield return waitTime;
    break;
}</code>

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