2007-05-27, 20:01 | Link #23 |
King of Hosers
Join Date: Dec 2005
Age: 41
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Not really donkey years, check some fun H2 posts of ancientness. It was without VBR for looonnng some time. Which is the only reason I remembered it. Nero's just had VBR from the start. Peeps have been encoding AAC longer then donkey years n_n.
@ffdshow Gain? |
2007-05-28, 16:27 | Link #26 |
King of Hosers
Join Date: Dec 2005
Age: 41
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Most people will say never use HE for any type of high quality encode because its just not nice :P, so use LC-AAC for sure. Though I'd say you have a good chance of aiming a bit lower then jfs's recommendations thar. Not really sure though for 5.1, few people bother to blind test it. And I am no audiophile :P.
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2007-05-28, 17:43 | Link #27 |
makes no files now
Join Date: May 2006
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/me heard an audiophile say that 5.1 AAC-HE @ 128kbps sounded awesome on a 5.1 audio setup
Who knows... (maybe it was just supposed to be; "Hey, sounds awesome at such a low bitrate, otherwise... Urgh"). I never tested it myself (actually, not really that I can). I had someone complain when I used 160kbps, moved up to 250kbps and heard that it sounded awesome, so I left it there. No complaints from then on. Maybe something like 280-320 would be a bit safer though... I've been using AAC-HE for some time now, nobody complained, neither did I (and I do test stuff throughoutly before actually using it; maybe as Fluff said, I might need to have my ears checked out...). Mostly people won't pay so much attention to audio since they are focused on reading the subtitles on the video, just something that one guy said and I kinda though; "well, fairly good point". That's just my point of view though, stay with Nicholi's advice to be on the safe side, that is use LC.
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Last edited by martino; 2007-05-28 at 17:53. Reason: typos & grammar |
2007-05-28, 20:18 | Link #29 | |
Member
Join Date: Oct 2006
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Quote:
Encoding a CD original stereo 48kHz sample rate to 128 kilobits, several encoders I tested attenuated at 16kHz. But that's only with two channels. While the compression ratio gets better the more channels you add, you still need a higher total bitrate. So when you do something like 128 kilobits 5.1 it will probably attenuate even lower causing clipping when the audio would normally reach those high frequencies. Of course, this is just one form of audio artifacting, there are others, this is just one I've studied a little. |
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2007-05-29, 06:44 | Link #32 |
Excessively jovial fellow
Join Date: Dec 2005
Location: ISDB-T
Age: 37
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I've used Nero's CLI encoder with great success in the past. I think you can use it from BeLight too, but last time I did it I encoded a 2 hours long 5.1 WAV (about 4 GB IIRC) with BeSweet and fed Nero's CLI encoder that.
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2007-05-29, 07:00 | Link #33 | |
makes no files now
Join Date: May 2006
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I've been using the SNG GUI for Nero, with BeBipe. You can get it from here (Doom9 thread here). BeLight I would say is a very good choice though, if you have the correct libraries you can use it for Vorbis and AC3 as well.
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2007-05-29, 07:31 | Link #34 |
I see what you did there!
Scanlator
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I'm confused now... Do the bitrate selectors and profile selectors indicate bitrate per channel or total bitrate of the entire stream?
Also, how do I convert bitrate to Q (quantizer)?
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Last edited by Starks; 2007-05-29 at 08:08. |
2007-05-29, 08:16 | Link #36 | |
I see what you did there!
Scanlator
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Quote:
(Also, I apologize for asking so many questions. I'm trying to learn how to be a better encoder this summer and asking here is far more effective than at Doom9.)
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2007-05-29, 08:21 | Link #37 |
Excessively jovial fellow
Join Date: Dec 2005
Location: ISDB-T
Age: 37
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Whatever sounds good to your ears and gives an acceptable filesize. :V
For me and Nero's AAC encoder, that's somewhere around 0.3-0.4, if I recall correctly (it's been a while since I used it). Try on some short (4-5 minutes) samples and see what seems good.
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2007-06-15, 06:05 | Link #40 |
makes no files now
Join Date: May 2006
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The profile is set automatically by the encoder, anything below and including 48kbps is HEv2 (SBR+PS), not sure about when HE (SBR) kicks in, maybe around 128 or 96kbps. Though I think that you can force the profile to some extent, like use HEv2 @ 64kbps, though I'm sure that's not recommended. The encoder application knows best when to kick in SBR and/or PS.
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