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adaptive bitrate vs. variable bitrate

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PS is actually enabled up to 48Kbps. however bitrate/quality modes are the same for video. if you require a specific filesize/bitrate then use a bitrate constrained mode otherwise use variable bitrate (quality) mode.

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euro_imports_21

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Messages: 277
Registration: 01.21.2002
07.01.21 - 06:58:19
Message # 1
RE: adaptive bitrate vs. variable bitrate

ah thank you for all the quick responses. so if i choose 0.25 and lc-aac but my overall bitrate ends up at less than 80kbps, would that be a bad thing? or should i choose lc-acc since using variable bitrate may have peaks above 80kbps?

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ryan_george

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Messages: 32
Registration: 11.23.2003
07.01.21 - 07:09:59
Message # 2
RE: adaptive bitrate vs. variable bitrate

sorry, wrong words. PS can be enabled up to 48Kbps.

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\\\WsO816

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Messages: 18
Registration: 08.14.2003
07.01.21 - 07:18:38
Message # 3
RE: adaptive bitrate vs. variable bitrate

I'm not convinced about the 48Kbps AAC-HE+PS limit. When comparing AAC-LC, AAC-HE and AAC-HE+PS generated at 64Kbps, the AAC-HE+PS encode sounds fuller to me, when played in my hardware player!

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1982 320i - 86xxx miles and not moving for now. Sound : Sony Cassette + 10 disk changer, Pioneer speakers, 10'' Boss sub x 2 --- Suspesion : H&R lowering springs, Bilstien Sport shocks all around. 1995 Mitsubishi Mighty Max - 84,xxx miles Broken A/C,

BetaTested

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Registration: 04.03.2003
07.01.21 - 07:23:13
Message # 4
RE: adaptive bitrate vs. variable bitrate

so what about when using variable bitrate at around 0.25 to 0.30 where my resulting average bitrate equals close to 64kbps. should i use he-aac or aac-lc? is there a downside to using aac-lc at a low bitrate? will the portions of higher bitrate sound bad if i use he-aac? granted, i'll be watching these shows through my television at first but who knows if/when i will ever upgrade to a sound system of some sort.

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.....you say "sandwich." Anson HAD a '97 M3/4a Cosmos/black w/ some good stuffs......He also HAD a '04 Pontiac GTO (Goat) Quicksilver/black w/ Lingenfelter CAI....Now he has a '02 Subie WRX wagon....stuffs on the way

Drea///M3

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Messages: 51
Registration: 08.27.2001
07.01.21 - 07:28:03
Message # 5
RE: adaptive bitrate vs. variable bitrate

well i'm not trying to produce anything of professional grade. i'm just wondering the proper implementation of the profiles and method. for instance, when doing two test encodes i get two different results 1) he-aac profile using 0.28 variable bitrate gives me an audio file that is 11.3mb, 75kbps, 2 channel stereo, 24khz 2) aac-lc profile using 0.28 variable bitrate gives me an audio file that is 10.1mb, 66kbps, 2 channel stereo, 48khz i had the same input file for each and have normalize peaks to 100 checked along with keep original channels and keep original sample rate. so why does the first file have a different hertz?

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thurst0509

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Messages: 779
Registration: 06.15.2003
07.01.21 - 07:39:10
Message # 6
RE: adaptive bitrate vs. variable bitrate

@IgorC: unless nero devs changed it in the latest versions, i clearly remember PS could be enabled up to 48Kbps (not 35).

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Giftschrank Projekt

enda320

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Statistics:
Messages: 65
Registration: 09.30.2003
07.01.21 - 07:49:20
Message # 7
RE: adaptive bitrate vs. variable bitrate

If you use q values in NeroAacEnc it will automatically determine a profile. I wouldn't recommend overriding it, unless you notice there is something really wrong.

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Conrad

SilverE30

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Messages: 657
Registration: 08.02.2002
07.01.21 - 07:52:50
Message # 8
RE: adaptive bitrate vs. variable bitrate

i did see that option but since no one mentioned it i figured people were against it

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IdriveBMW

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Statistics:
Messages: 395
Registration: 06.10.2003
07.01.21 - 07:59:32
Message # 9
RE: adaptive bitrate vs. variable bitrate

What has happened to IgorC's posts?

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fstbmwm3

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Statistics:
Messages: 172
Registration: 08.13.2001
07.01.21 - 08:09:28
Message # 10
RE: adaptive bitrate vs. variable bitrate
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