如何配置 OpenSL 以使用除主扬声器或耳机以外的耳机 [英] How to configure OpenSL to work with ear speaker other than main speaker or headphones

问题描述

我在 android NDK 中尝试过原生音频代码示例.当我尝试录制一些语音然后播放时，它工作正常.它使用主扬声器(扬声器)进行语音播放.我想修改代码，以便在耳机而不是主扬声器中播放语音.有什么帮助吗?

I've tried the native-audio code sample in android NDK. When i try to record some speech and then play it back it works fine. It uses the main speaker(loud speaker) for the speech playback. I want to modify the code so that the speech is played in the ear speaker instead of the main speaker. Any help?

推荐答案

我解决了这个问题，我找到了一个相关主题的google group.这真的很有帮助.这是链接:https://groups.google.com/forum/#!topic/android-ndk/O-hufEm20cU

I solved the problem and I've found a google group of related topic. It was really helpful. Here's the link: https://groups.google.com/forum/#!topic/android-ndk/O-hufEm20cU

我在 Android NDK 提供的本机音频示例中对其进行了测试.您必须先获取android配置的接口，然后在创建音频播放器后将流类型设置为STREAM_VOICE.

I tested it in the native-audio example provided with android NDK. You've to take interface of android configuration first and then set stream type to STREAM_VOICE after creating the audio player.

// Code for working with ear speaker by setting stream type to STREAM_VOICE
SLAndroidConfigurationItf playerConfig;
result = (*bqPlayerObject)->GetInterface(bqPlayerObject, SL_IID_ANDROIDCONFIGURATION, &playerConfig);
SLint32 streamType = SL_ANDROID_STREAM_VOICE;
result = (*playerConfig)->SetConfiguration(playerConfig, SL_ANDROID_KEY_STREAM_TYPE, &streamType, sizeof(SLint32));

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