Although the Nexus 6 has 3 microphones (one built in the bottom speaker hole, one on the back plate close to the Micro USB port, and one next to the back camera lens), it looks like audio is always recorded as mono when shooting a video. Furthermore, the audio is always captured from the front mic in the speaker hole, which means that it takes the sound from the opposite side of the camera lens.
I've also tried with other camera apps (such as Cinema FV-5 which allows to select between mono and stereo audio) but the audio is recorded mono anyway.
I've then checked the file media_profiles.xml in /system/etc/ and found out that basically all different resolutions had channels="1" , which means that only one (mono) audio channel is recorded.
I've tried to change channels="2" and rebooted but still all audio was recorder as mono and from from the from mic instead of the rear mics.
Any ideas on how to get stereo audio recording?
I've also tried with other camera apps (such as Cinema FV-5 which allows to select between mono and stereo audio) but the audio is recorded mono anyway.
I've then checked the file media_profiles.xml in /system/etc/ and found out that basically all different resolutions had channels="1" , which means that only one (mono) audio channel is recorded.
I've tried to change channels="2" and rebooted but still all audio was recorder as mono and from from the from mic instead of the rear mics.
Any ideas on how to get stereo audio recording?
Written by dd
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