@HairyAdmin I followed your instructions, but with your emulator string my roms will not even play. Using the emulator string from the article [link text]http://selsine.com/2016/10/16/how-to-live-stream-to-twitch-from-a-retropie/(link url), I can get the game to play, but it will not stream to twitch, or even register anything on twitch.
Here is what I have so far.
I am running 4.4 on a raspberry 3 b+.
/home/pi/RetroPie/Recording/Twitch.cfg
vcodec = libx264
acodec = aac
pix_fmt = yuv420p
threads = 2
scale_factor = 1
format = flv
video_preset = ultrafast
video_profile = main
video_tune = animation
video_bufsize = 512k
video_minrate = 512k
video_maxrate = 512k
video_r = 60
video_g = 120
video_keyint_min = 60
sample_rate = 44100
audio_preset = aac_he_v2
audio_global_quality = 1
/opt/retropie/configs/nes/emulators.cfg
lr-fceumm = "/opt/retropie/emulators/retroarch/bin/retroarch -L /opt/retropie/libretrocores/lr-fceumm/fceumm_libretro.so --config /opt/retropie/configs/nes/retroarch.cfg %ROM%"
default = "lr-fceumm-record-twitch"
lr-nestopia = "/opt/retropie/emulators/retroarch/bin/retroarch -L /opt/retropie/libretrocores/lr-nestopia/nestopia_libretro.so --config /opt/retropie/configs/nes/retroarch.cfg %ROM%"
lr-quicknes = "/opt/retropie/emulators/retroarch/bin/retroarch -L /opt/retropie/libretrocores/lr-quicknes/quicknes_libretro.so --config /opt/retropie/configs/nes/retroarch.cfg %ROM%"
lr-fceumm-record-twitch = "/opt/retropie/emulators/retroarch/bin/retroarch -L /opt/retropie/libretrocores/lr-fceumm/fceumm_libretro.so --config /opt/retropie/configs/nes/retroarch.cfg --record rtmp://live . / $$STREAMKEY$$ --recordconfig /home/pi/RetroPie/recording/twitch.cfg %ROM%"
Any assistance would be swell, and please type slow, because I can't read fast.