Question

我尝试在windows phone app中播放音频缓冲区。

        byte[] buffer = new byte[44100 * 2 * 5];

        float t = 0;
        for (int i = 0; i < 44100 * 2 * 5; i += 2)
        {
            short val = (short)(Math.Sin(t * 2 * Math.PI * 440) * short.MaxValue);
            buffer[i] = (byte)(val & 0xFF);
            buffer[i + 1] = (byte)(val >> 8);
            t += 1 / 44100.0f;
        }

        sf = new SoundEffect(buffer, 44100, AudioChannels.Mono);

        // Play.
        sf.Play();

我收到错误：类型＆＃39; System.InvalidOperationException＆＃39;的第一次机会异常发生在Microsoft.Xna.Framework.ni.dll中类型＆＃39; System.InvalidOperationException＆＃39;的例外情况发生在Microsoft.Xna.Framework.ni.dll但未在用户代码中处理

帮忙吧！

Answer 1

您需要致电FrameworkDispatcher.Update。

这里的答案应该有效： Playing a sound from a generated buffer in a Windows phone app

播放缓冲区，Windows Phone 8

1 个答案: