RewindAudio

public bool RewindAudio { get; set; }

[C#]
using (Presentation pres = new Presentation())
{
    ISlide slide = pres.Slides[0];

    // 添加音频框
    IAudioFrame audioFrame = slide.Shapes.AddAudioFrameLinked(50, 50, 100, 100, "sampleaudio.wav");

    // 设置音频在幻灯片之间播放
    audioFrame.PlayAcrossSlides = true;

    // 设置音频在播放后自动回到开始
    audioFrame.RewindAudio = true;

    pres.Save("AudioFrame_out.pptx", SaveFormat.Pptx);
}