mp4tools broken HE-AAC+v2 broken?

2009-02-21 02:40:58

I'm very frustrating...
For a week I try, without success, to make good m4a files on Ubuntu 8.10 x64.
aacplusenc make raw aac files and my Motorola V3x don't recognize it (and I must convert before on wave).
I've found mp4tools, but it make broken audio files (the sample on the site is perfect on playing) in some part:
(And ignore my setting 64k bitrate!)

Code: [Select]

mkmp4 input.mp3 output.m4a 64

Analysing input file
(standard_in) 1: syntax error

Ripping Audio
MPlayer SVN-r28680-4.3.2 (C) 2000-2009 MPlayer Team
A: 148.5 (02:28.4) of 148.0 (02:28.0)  0.5% 
Normalizing Audio
Computing levels...
 audio.10358.wav   100% done, ETA 00:00:00 (batch 100% done, ETA 00:00:00) 
/tmp/audio.10358.wav already normalized, not adjusting...

Audio only file, increasing quality a bit

Encoding AAC+ Audio

*************************************************************
* Enhanced aacPlus Encoder
* Build Oct 29 2008, 23:02:09
* Matteo Croce <rootkit85@yahoo.it>
*************************************************************

input file /tmp/audio.10358.wav: 
sr = 44100, nc = 2

output file /tmp/audio.10358.aac: 
br = 32000 sr-OUT = 44100  nc-OUT = 2

[100%]

encoding finished

Muxing
AAC import SBR (explicit) - sample rate 44100 - MPEG-4 audio - 1 channel
Setting up iTunes/iPod file...                       
Saving output.m4a: 0.500 secs Interleaving
                                                        
saved to 
output.m4a

p.s. sorry, but i can't correct the title

mp4tools broken HE-AAC+v2 broken?

Reply #1 – 2009-02-21 03:01:03

I've found on mp4tools this broken line:

Code: [Select]

#aacplusenc <infile> <outfile> [quality]
aacplusencode()
{
    green "Encoding AAC+ Audio"
    if [ "$AAC_ENCODER" = 'nero' ]
    then
        [ "$CHANNELS" = 2 ] && PS='v2'
        neroaacenc "$1" "$2" "-he$PS -q ${3:-0.15}"
        RET=$?
    else
        aacplusenc "$1" "$2" 32
        RET=$?
    fi
    MP4BOX_AOPTS="-sbrx -add $2"
    return $RET
}

the setting is 32 and is arbitrary (I can't set the bitrate), if i try to modify to 48, the final output is playing but seem "mute".

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