低录音音量结合 AVAudioSessionCategoryPlayAndRecord [英] Low recording volume in combination with AVAudioSessionCategoryPlayAndRecord

问题描述

当我设置时:

[[AVAudioSession sharedInstance] setCategory:
    AVAudioSessionCategoryPlayAndRecord error:NULL];

...录音和播放效果很好，只是播放音量比我在没有录音和设置 PlayAndRecord 的情况下只播放相同的声音时降低了 60% 左右.

…recording and playing works fine, just the playback volume is around 60% lower than when I would just play the same sound without recording and settings PlayAndRecord.

我需要获得高音量峰值(以检查用户是否在麦克风中吹气)，因为我开始了录音会话.但是如果没有设置 AVAudio..PlayandRecord，我不能同时播放任何声音.这就是我实现这个命令的原因.

I need to get high volume peaks (to check if a user blow in the mic) for that i started a recording session. But without settings AVAudio..PlayandRecord, i can not playback any sounds in the meantime. Thats the reason i implemented this command.

有什么帮助吗?

谢谢克里斯

推荐答案

对于遇到相同问题的每个人，请将您的输出重定向到扬声器:

For everyone with the same problem, redirect your output to the speaker:

[[AVAudioSession sharedInstance] setCategory:
    AVAudioSessionCategoryPlayAndRecord error:NULL];
UInt32 audioRouteOverride = kAudioSessionOverrideAudioRoute_Speaker;
AudioSessionSetProperty(kAudioSessionProperty_OverrideAudioRoute,
    sizeof(audioRouteOverride), &audioRouteOverride);

那行得通.

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