Increase Video Bitrate on the Nexus 4
The Google Nexus 4 has had its ups and downs since its release. The lack and subsequent gain of (limited) LTE functionality, shipping/stock issues, and of course the great development occurring on the device. Another issue that some users have reported is that there is excessive noise in their video recording. Now, there may be a fix for that.
XDA Recognized Contributor mohit1234 released a mod that increases the bitrate of the Nexus 4 from 12 Mbps to 20 Mbps. This should help fix the noise problem and give you better quality videos. So far, users have reported that this has, in fact, helped a great deal and testing seems to show that this will help the noise issue. Of course, increasing the bitrate will inherently require more storage space for your recorded videos, so choose wisely.
To apply the mod, users will have to make a few edits in media_profiles.xml. This is not too different from the 720p mod for the Nexus 7. While this does fix the issues, there is more potential fun that modders can have with the media_profiles.xml file. The next steps will be seeing how high the bitrate can go, and altering the audio and channel values to see if Nexus 4 users can get better audio along with video.
To learn more, check out the original thread.