hi, today i decided to install the latest svn 5167 release of handbrake, and it has a slightly different interface than the older 0.9.8 version i was using.
one of the main things i noticed in this new release was in the "Video" tab where the default h264 profile setting is now Main @ L4.0 where in my previous version it was default main @ L4.1.
Question is, should i set this to main @ L4.1 in the new version or just leave it on 4.0 ?
also, if i am not doing Auto Passthru with my m2ts files to mp4 (cam records in 5.1ch ac3) i have been using AAC ffmpeg audio, and i noticed in the handbrake online manual that handbrake uses AAC (faac) by default unless i change it to ffmpeg.
now i decided to use ffmpeg because i read somewhere that it was preferred over faac, so can someone please clarify this one for me as well.
the main reason why i ask is that when not using Auto passthru, i output the audio to stereo.
cheers
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Hi
It's up to you.
Either use FAAC encoder or use FFmpeg's native AAC encoder.
Either
Code:faac -b 160 -o foo1.m4a foo.wav
Code:ffmpeg -i foo.wav -c:a aac -strict -2 -b:a 160k foo2.m4a
Samples are attached.
You decide. -
ok thx for the replies, but my queerie about faac and ffmpeg was not so much about how i hear the audio so much, what i wanted to know was which of the 2 is commonly regarded as the better between the 2, and which will be seen to be the standard into the future, because i read the following notes from the user guide, and on one hand it appears they say faac is better in one way but ffmpeg is better in another, but ffmpeg is experimental.
thats why im confused, but i can say that in every case where i use AAC, i choose ffmpeg (auto 160) where as if i do AAC Passthru i believe it does it in AAC faac
- AAC (faac):
- HandBrake's default audio codec is AAC. It uses the faac encoder.
- Typically provides higher quality than MP3 at a given bit-rate (however, This claim, of course, is contested, especially for the faac library. Faac is not known for being a particularly good implementation of the codec)
- AAC (ffmpeg):
- HandBrake's default audio codec is AAC. It uses the faac encoder.
- An experimental AAC encoder. Quality is close to or on par with AAC (faac). It will eventually be the replacement for libfaac when it is up to a high enough standard
- AAC (faac):
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sorry for the silly question, but does Handbrakes AAC ffmpeg output option use the ffmpeg encoder ?
also, not being an audiophile, i cannot decifer any difference in the 2 samples posted above, and if there is a difference, what should i be listening for ?
cheers
EDIT: i have now posted screenshots of all 4 audio outputs, and in photo 3 where i selected aac passthru (assuming it is aac faac) the bitrate is 160, where as in photo 4 where i manually select aac ffmpeg-stereo-160br-auto samplerate the bitrate is 155
1. 1080-50p M2TS (from camera) 6ch-ac3-48.0khz-384br)
2. 1080-50p Mp4 (auto passthru) 6ch-ac3-48.0khz-384br
3. 1080-50p Mp4 (aac passthru) faac
4. 1080-50p Mp4 (aac ffmpeg-stereo-160br-auto samplerate)
Last edited by glenpinn; 13th Jan 2013 at 17:32.
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