IPB

Welcome Guest ( Log In | Register )

qtaacenc: a command-line QuickTime AAC encoder for Windows
nao
post Jan 22 2010, 11:15
Post #1





Group: Members
Posts: 86
Joined: 16-June 06
Member No.: 31911



Hi,

As I already posted in the other thread, I released a tiny tool for Windows to access the QuickTime AAC encoder from the command line. Now some important features, gapless support and pipe encoding, have been added, so I've decided to create a dedicated thread for this software.

You can get the latest version here.

Any comments or questions are accepted in this thread.
Thanks

This post has been edited by greynol: Nov 28 2010, 01:03
Reason for edit: fixed link.
Go to the top of the page
+Quote Post
 
Start new topic
Replies
wkmax
post Jan 24 2010, 12:23
Post #2





Group: Members
Posts: 32
Joined: 30-December 09
From: Chile
Member No.: 76490



Thank you so much for this contribution nao!!! laugh.gif
Works fine, QuickTime True VBR AAC rules! wink.gif

Are these bitrates values correct for qtaacenc?:

Target Quality - True VBR AAC (Powered by QuickTime & CoreAudio):
Q0 - Q4 = ~40 kbps
Q5 - Q13 = ~45 kbps
Q14 - Q22 = ~75 kbps
Q23 - Q31 = ~80 kbps
Q32 - Q40 = ~95 kbps
Q41 - Q49 = ~105 kbps
Q50 - Q58 = ~115 kbps
Q59 - Q68 = ~135 kbps
Q69 - Q77 = ~150 kbps
Q78 - Q86 = ~165 kbps
Q87 - Q95 = ~195 kbps
Q96 - Q104 = ~225 kbps
Q105 - Q113 = ~255 kbps
Q114 - Q122 = ~285 kbps
Q123 - Q127 = ~320 kbps


Thanks again!

This post has been edited by wkmax: Jan 24 2010, 12:51
Go to the top of the page
+Quote Post
richard123
post Feb 5 2010, 17:33
Post #3





Group: Members
Posts: 348
Joined: 9-January 03
Member No.: 4498



QUOTE (wkmax @ Jan 24 2010, 06:23) *
Are these bitrates values correct for qtaacenc?:

[i]Target Quality - True VBR AAC (Powered by QuickTime & CoreAudio):
Q50 - Q58 = ~115 kbps
In the listening test thread, two testers got ~128 kbps for Q58

http://www.hydrogenaudio.org/forums/index....st&p=685645
Go to the top of the page
+Quote Post
rpp3po
post Feb 5 2010, 17:37
Post #4





Group: Developer
Posts: 1126
Joined: 11-February 03
From: Germany
Member No.: 4961



QUOTE (richard123 @ Feb 5 2010, 17:33) *
In the listening test thread, two testers got ~128 kbps for Q58


Nope, it was Q59.
Go to the top of the page
+Quote Post
richard123
post Feb 5 2010, 19:07
Post #5





Group: Members
Posts: 348
Joined: 9-January 03
Member No.: 4498



QUOTE (rpp3po @ Feb 5 2010, 11:37) *
Nope, it was Q59.
Oops. I used to be able to read.

In that case, your result of 129kbps is close to wkmax's

Q59 - Q68 = ~135 kbps
Go to the top of the page
+Quote Post

Posts in this topic
- nao   qtaacenc: a command-line QuickTime AAC encoder for Windows   Jan 22 2010, 11:15
- - tedgo   Many thanks for this Now i can use True VBR withi...   Jan 22 2010, 11:23
- - Alexxander   Interesting tool Thank you for your contribution...   Jan 22 2010, 11:30
|- - nao   QUOTE (Alexxander @ Jan 22 2010, 19:30) T...   Jan 22 2010, 11:39
- - grimes   Thank you, nao, for that nice encoding tool. Can...   Jan 22 2010, 11:30
- - Alexxander   The Free version will do? According to Apple's...   Jan 22 2010, 12:21
|- - nao   QUOTE (Alexxander @ Jan 22 2010, 20:21) T...   Jan 22 2010, 12:35
- - Alexxander   Thx. I've installed latest Apple QuickTime fre...   Jan 22 2010, 12:57
|- - [JAZ]   QUOTE (Alexxander @ Jan 22 2010, 12:57) I...   Jan 22 2010, 21:10
- - guruboolez   I've been waiting for this tool for many years...   Jan 22 2010, 13:33
- - IgorC   Nao, Thank you very much. Finally TVBR for Windows...   Jan 22 2010, 15:20
|- - nao   QUOTE (IgorC @ Jan 22 2010, 23:20) Can yo...   Jan 22 2010, 15:34
|- - UPollaehne   QUOTE (nao @ Jan 22 2010, 15:34) QUOTE (I...   Jan 24 2010, 10:52
|- - nao   QUOTE (UPollaehne @ Jan 24 2010, 18:52) S...   Jan 24 2010, 11:37
- - IgorC   Itunes has the same speed as qtaacenc --normal. --...   Jan 22 2010, 15:41
- - punkyjet   Thank you very much Nao.   Jan 22 2010, 16:02
- - /mnt   Thanks for this tool. It works pretty well on foob...   Jan 22 2010, 16:29
- - Xire   QUOTE (nao @ Jan 22 2010, 13:15) Any comm...   Jan 22 2010, 17:11
|- - nao   QUOTE (Xire @ Jan 23 2010, 01:11) What is...   Jan 22 2010, 17:30
- - halb27   Just tried, works fine. Thank you, nao.   Jan 22 2010, 17:26
- - kornchild2002   I am not sure what you have done but encoding spee...   Jan 22 2010, 17:38
- - lvqcl   Thanks for the program, nao. About encoding speed...   Jan 22 2010, 18:20
- - halb27   I just found an issue when using True VBR at quali...   Jan 22 2010, 19:47
|- - nao   QUOTE (halb27 @ Jan 23 2010, 03:47) I jus...   Jan 22 2010, 19:59
- - halb27   You're right, everything's fine when using...   Jan 22 2010, 20:04
- - seVen   Many thanks nao!   Jan 22 2010, 20:51
- - antman   Tried it with QT alternative 3.1 and the applicati...   Jan 23 2010, 00:06
- - wkmax   Thank you so much for this contribution nao!...   Jan 24 2010, 12:23
|- - nao   QUOTE (wkmax @ Jan 24 2010, 20:23) One qu...   Jan 24 2010, 12:53
||- - wkmax   QUOTE (nao @ Jan 24 2010, 12:53) QUOTE (w...   Jan 24 2010, 12:55
|- - richard123   QUOTE (wkmax @ Jan 24 2010, 06:23) Are th...   Feb 5 2010, 17:33
|- - rpp3po   QUOTE (richard123 @ Feb 5 2010, 17:33) In...   Feb 5 2010, 17:37
|- - richard123   QUOTE (rpp3po @ Feb 5 2010, 11:37) Nope, ...   Feb 5 2010, 19:07
- - Mix3dmessagez   tested it out, got a file with 10.1MB with it, kne...   Jan 26 2010, 01:59
|- - kornchild2002   QUOTE (Mix3dmessagez @ Jan 25 2010, 17:59...   Jan 31 2010, 21:10
- - Steve Forte Rio   Why iTunes (v9.0.2.25) and qtaacenc produce files ...   Jan 29 2010, 20:37
- - lvqcl   Try qtaacenc --cvbr 320 --normal.   Jan 29 2010, 20:48
- - Steve Forte Rio   Duration : 6:35.613 (17446548 samples) Sample Rate...   Jan 30 2010, 08:46
|- - C.R.Helmrich   So for extra clarification: Does that mean that iT...   Jan 30 2010, 11:57
|- - nao   QUOTE (C.R.Helmrich @ Jan 30 2010, 19:57)...   Jan 30 2010, 12:46
- - clintb   You are my audio transcoding hero! I HATE havi...   Jan 30 2010, 17:52
- - richard123   I've been encoding a song from Abbey Road. At...   Jan 30 2010, 18:15
|- - clintb   QUOTE (richard123 @ Jan 30 2010, 10:15) I...   Jan 30 2010, 18:20
|- - richard123   QUOTE (clintb @ Jan 30 2010, 12:20) Check...   Jan 30 2010, 18:23
|- - wkmax   QUOTE (richard123 @ Jan 30 2010, 18:23) Q...   Jan 30 2010, 23:58
- - richard123   Any idea why Apple would do levels in this stepwis...   Jan 31 2010, 02:33
- - singaiya   I just noticed that for Q values <59, output is...   Feb 1 2010, 02:47
- - lvqcl   Quick test: lame -V 6.248: 126 kbps lame -V 6.249...   Feb 1 2010, 16:35
|- - singaiya   QUOTE (lvqcl @ Feb 1 2010, 07:35) Quick t...   Feb 3 2010, 06:57
|- - singaiya   QUOTE (singaiya @ Feb 2 2010, 21:57) Both...   Feb 4 2010, 05:10
- - matt_t   Thanks nao for your program. Could you possibly g...   Feb 2 2010, 04:34
- - redsandvb   Thank you nao   Feb 2 2010, 05:32
- - punkrockdude   I notice that the output files sometimes are almos...   Feb 2 2010, 20:43
- - b66pak   ok...i have done some tests...here are the results...   Feb 2 2010, 21:34
- - Steve Forte Rio   QUOTE I notice that the output files sometimes are...   Feb 2 2010, 21:34
- - tedgo   @punkrockdude I noticed this too. Also when i enco...   Feb 2 2010, 21:35
|- - wkmax   QUOTE (tedgo @ Feb 2 2010, 21:35) @punkro...   Feb 2 2010, 22:16
|- - greynol   QUOTE (tedgo @ Feb 2 2010, 12:35) It seem...   Feb 2 2010, 22:59
|- - lvqcl   QUOTE (tedgo @ Feb 2 2010, 23:35) It seem...   Feb 2 2010, 23:53
|- - lvqcl   QUOTE (lvqcl @ Feb 3 2010, 01:53) It look...   Feb 3 2010, 16:24
- - b66pak   QUOTE (b66pak @ Feb 2 2010, 22:34) ok...i...   Feb 2 2010, 21:38
- - lvqcl   ALAC never clips.   Feb 2 2010, 22:40
|- - wkmax   QUOTE (lvqcl @ Feb 2 2010, 22:40) ALAC ne...   Feb 2 2010, 22:49
- - tedgo   What's wrong with the word "seems"? ...   Feb 2 2010, 23:20
- - greynol   I implicitly trust lvqcl, so I won't continue ...   Feb 3 2010, 00:07
- - tedgo   QUOTE (greynol @ Feb 3 2010, 00:07) I imp...   Feb 3 2010, 00:20
- - greynol   You're over-reacting. I already said I apolog...   Feb 3 2010, 00:28
- - Xire   QUOTE (nao @ Jan 22 2010, 13:15) Hi, Any ...   Feb 4 2010, 13:56
|- - nao   QUOTE (Xire @ Feb 4 2010, 21:56) Maybe a ...   Feb 4 2010, 15:41
- - rpp3po   I just realized that nao is 'tmkk', the au...   Feb 4 2010, 17:20
- - kornchild2002   XLD is a nice tool. I have thought about purchasi...   Feb 4 2010, 23:08
- - tedgo   The scaling has nothing to do with foobar2000, mus...   Feb 4 2010, 23:51
- - rpp3po   Lossy compression adds energy due to filtering art...   Feb 4 2010, 23:58
|- - gaekwad2   QUOTE (rpp3po @ Feb 4 2010, 23:58) I don...   Feb 5 2010, 19:52
|- - rpp3po   QUOTE (gaekwad2 @ Feb 5 2010, 19:52) Beca...   Feb 5 2010, 20:27
||- - gaekwad2   QUOTE (rpp3po @ Feb 5 2010, 20:27) QUOTE ...   Feb 5 2010, 20:35
||- - Alex B   QUOTE (rpp3po @ Feb 5 2010, 21:27) Or is ...   Feb 5 2010, 20:59
|- - Alex B   QUOTE (gaekwad2 @ Feb 5 2010, 20:52) ... ...   Feb 5 2010, 21:18
- - rpp3po   I didn't think about that. If the energy added...   Feb 5 2010, 20:47
|- - gaekwad2   QUOTE (rpp3po @ Feb 5 2010, 20:47) Does i...   Feb 5 2010, 21:52
- - lvqcl   It is possible to multiply input by 0.95 to preven...   Feb 5 2010, 21:05
|- - rpp3po   QUOTE (lvqcl @ Feb 5 2010, 21:05) It is p...   Feb 5 2010, 21:38
|- - Alex B   QUOTE (rpp3po @ Feb 5 2010, 22:38) I also...   Feb 5 2010, 21:57
- - Alex B   BTW, all resulting bitrates in my screenshot are d...   Feb 5 2010, 21:47
- - rpp3po   Could you please upload 30 sec of a file, that get...   Feb 5 2010, 21:55
- - lvqcl   Test file for QT limiter:all (but one) samples are...   Feb 5 2010, 22:12
- - Alex B   QUOTE (rpp3po @ Feb 5 2010, 22:55) Could ...   Feb 5 2010, 22:28
|- - rpp3po   Alex, I get 0.999969 track peak for the original M...   Feb 5 2010, 22:52
- - Larson   Nao could you also give us instruction for a CLI d...   Feb 7 2010, 11:00
|- - nao   QUOTE (Larson @ Feb 7 2010, 19:00) Nao co...   Feb 7 2010, 12:09
|- - matt_t   QUOTE (nao @ Feb 7 2010, 11:09) QUOTE (La...   Feb 7 2010, 17:12
|- - nao   QUOTE 1) Converting mono tracks - is it better to ...   Feb 7 2010, 19:14
- - Larson   thank you nao!it works amazing! Should ...   Feb 9 2010, 12:37
|- - wkmax   QUOTE (Larson @ Feb 9 2010, 12:37) thank ...   Feb 9 2010, 13:07
- - Larson   sometimes it's 2-3 kbps of difference,anway mo...   Feb 9 2010, 13:53
- - rpp3po   I can confirm that the differences are not due to ...   Feb 9 2010, 14:10
- - nao   QUOTE Should "highest quality decoded source...   Feb 9 2010, 14:28
|- - wkmax   QUOTE (nao @ Feb 9 2010, 14:28) I don...   Feb 9 2010, 15:18
- - Steve Forte Rio   Hello. I have one question about VBR encoding in ...   Feb 15 2010, 17:07
- - rpp3po   There is no technical reason to expect CVBR to be ...   Feb 15 2010, 17:29
5 Pages V   1 2 3 > » 


Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



RSS Lo-Fi Version Time is now: 23rd September 2014 - 19:57