力iPhone通过扬声器输出，而从耳机MIC录音 [英] Force iPhone to output through the speaker, while recording from headphone mic

问题描述

据我已经能够告诉，每当你覆盖在iPhone的音频路由，你必须改变两个输出和输入路由一起。我所知道的唯一可用的途径是：

As far as I've been able to tell, whenever you override an audio route in the iPhone, you have to change both the output AND input routes together. The only available routes I'm aware of are:

耳机
耳机
扬声器
SpeakerAndMicrophone
HeadphonesAndMicrophone
HeadsetInOut
ReceiverAndMicrophone
线外

"Headset" "Headphone" "Speaker" "SpeakerAndMicrophone" "HeadphonesAndMicrophone" "HeadsetInOut" "ReceiverAndMicrophone" "Lineout"

有没有办法从线路输入/耳机录制和通过扬声器播放？

Is there any way to record from the line input/headset in and play through the speaker?

推荐答案

与CoreAudio的邮件列表上苹果的工程师交谈后，我发现它目前无法用一个RemoteIO音频单元来做到这一点。

After talking with Apple engineers on the Coreaudio mailing list, I've found it's not currently possible to do this with a single RemoteIO audio unit.

我要尝试实例两个音频单元，一个用于播放，其他的收购，但我不希望。我们将拭目以待。

I'm going to try to instantiate two audio units, one for playing, the other for acquisition, but I'm not hopeful. We shall see.

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