如果连接耳机静音

Question

我使用RedaPro for Xamarin连接到音频投射。声音传到扬声器。收听时，我连接了蓝牙耳机。声音切换到它们，但是很安静。

对于声音，我使用具有以下设置的AVAudioSession：

类别-PlayAndRecord

CategoryOptions -DefaultToSpeaker |蓝牙| AllowBluetoothA2DP

并激活会话

设置AVAudioSession代码：

    private static void SetupAVSession()
    {
        AVAudioSession.SharedInstance().SetActive(false);
        AVAudioSession.SharedInstance().SetCategory(AVAudioSessionCategory.PlayAndRecord,
        AVAudioSessionCategoryOptions.DefaultToSpeaker | AVAudioSessionCategoryOptions.AllowBluetooth | AVAudioSessionCategoryOptions.AllowBluetoothA2DP);
        AVAudioSession.SharedInstance().SetActive(true);
    }

Answer 1

我将SetPreferredSampleRate的值设置为16000，并且可以正常工作

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