qtaacenc: a command-line QuickTime AAC encoder for Windows Options

[nao]

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.

[lvqcl]

Quick test:

lame -V 6.248: 126 kbps
lame -V 6.249: 115 kbps

qtaacenc --tvbr 59: 135 kbps
qtaacenc --tvbr 58: 105 kbps

(and qtaacenc --tvbr 58 --samplerate keep: 114 kbps)

I cannot say that 126 is 'much lower' than 135 kbps.

This post has been edited by lvqcl: Feb 1 2010, 16:41

[singaiya]

Quick test:

lame -V 6.248: 126 kbps
lame -V 6.249: 115 kbps

qtaacenc --tvbr 59: 135 kbps
qtaacenc --tvbr 58: 105 kbps

(and qtaacenc --tvbr 58 --samplerate keep: 114 kbps)

I cannot say that 126 is 'much lower' than 135 kbps.

When talking of "much lower" I was thinking of NeroAAC but said mp3 by mistake. The last encoder I used was Nero 1.1.1.3 (I think that's the version before 1.3.3) at ~104 kbps (Q0.25 -LC) and that encoder/setting does not resample to 32 kHz.

Anyway I found a strange behavior with qtaacenc output and iTunes/iPod. Both iTunes and iPod will stop playback at 71.6% through a file. I tested this on three files and they all skipped at different absolute times, but they were each 71.6% of the way through the total time of the file. This behavior does not happen with foobar, but it does both on iTunes 9.0.1.8 and iPod 160 GB version 2.0.2. My command line is --tvbr 59 --highest %s %d.

EDIT: I'm using qtaacenc 20100107. I'll try it with the latest version tomorrow.

This post has been edited by singaiya: Feb 3 2010, 07:11

[singaiya]

Both iTunes and iPod will stop playback at 71.6% through a file.

Update on this: I really don't know what happened with that particular set of three albums I encoded to produce that strange behavior reported earlier. I deleted those QT AAC files and re-encoded from flac, using the exact same method, encoder, and settings, and the files play normally in both iTunes/iPod without skipping to the next song at 71.6% of the current song.