[Nexus 5 Android Development] mpiwosal:
A week late (sorry for that) but i'm here to show you some recordings from concerts using this mod.

Let me start with telling you how I have achieved my results:

*had no time to switch between db -6 and db -12 during the concert so i stayed with -6db (aroma)

*reduced my default mic gain to the lowest possible (80/81 if i'm correct?) option in aroma

*aMGC (obviously) switched on

*nothing more really, stereo on but it doesn't matter in this case

***during recording I had to go -24dB or even -30dB from the default level, from my observations you need to keep the RMS level around -30dB (max. -20dB, otherwise it won't record well)

next let me say: there is an improvement. really. i didn't record (sadly) any video without the mod for comparison, but anyone who has ever tried recording something in loud environments knows the pain.

problems:

*first seconds of my videos are terrible. this is due to the time needed to set the right dB level, after that it's much better

*reduced gain lowers the loudness, so the videos (or more accurately audio tracks) need to be enhanced. Instructions on how to do this are at the end of this post.

so, here are the videos: [listen on headphones!]

Bastille 1: (-24dB-> it was enough because it wasn't the headliner so it wasn't that loud and i was far away from the stage)

https://youtu.be/OlbkCZKTV00

Bastille 2: (kept -24dB, i was closer to the stage but it was still fine)

//edit: you can hear how the stereo works on 0:30 (when i'm turning the camera), provided you have good headphones

https://youtu.be/DMp58LJfaWQ

Muse 1: (so, here goes the headliner... -30dB was a must since it was veeeery loud. and i was in like the 3rd row directly in front of the speakers, also the people singing and screaming. that was a tough one to record i must say...) [completely skip the first 20 seconds...]

https://youtu.be/mEwv7PNnMtk

Muse 2: (-30dB, obviously... but listen to the drums! it would never be possible without this mod!) [also skip first 15sec]

https://youtu.be/nr1fPIxF4Cw

ok that's it from the videos. now for the "editing". note that i'm not a proffesional, i'll be describing my own way to achieve it, you can share if you have a better one.

programs you'll need: VLC player, audacity, mkvmerge GUI (or similar)

instructions:

1. You'll need to separate the video from the audio. it can be done in VLC:

*open VLC-> media-> convert/save-> add file (here you should choose your video)->convert (or alt+o)-> on the next window, choose tools icon ("edit selected profile")-> on "encapsulation" tick "wav", next on "video codec" untick "video", on "audio codec" tick audio, set codec to wav, change bitrate to 320 and sample rate to highest possible-> click save,set destination file and click start. you're done for now, and you have separated your audio from video.

2. audacity. firstly go to edit->preferences->libraries and make sure that ffMPEG library is installed. if not, download and install from there.

next: open your audio file in audacity and turn the volume up by marking your entire (or not) track and selecting effect->amplify and choosing the right amplification (trials and errors). after you're done with that, go to effect->normalize->ok, and later go to effect->compressor-> ok.

Lastly, go to file->export audio, and choose the path you want.

3. open mkvmerge click add, and choose your video and NEW (!!) audio file. On the second window (tracks, blablabla) UNTICK something starting with AAC, and start muxing. You're done. you have your video mixed with reworked audio. uff that was tiring, wasn't it?... i'm looking for a simpler method. anyone?

ok that's it. i know the videos aren't perfect but hey, it was my first try. and i didn't think my nexus 5 would ever be able to record a concert like that! uff that was a lot of typing. sorry for the delay again and don't hestitate to ask questions and discuss :)