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Old 18th November 2019, 12:18   #1  |  Link
Forteen88
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Recommended software to reencode to AppleAAC?

I wonder, which is the recommended software to reencode DTS and AC3 (DD) into Apple-AAC (like using QAAC software)?

Normally I use Foobar2000 with DTS/AC3-plugins and Foobar2000 uses QAAC to encode to Apple-AAC, but now I've come upon a PCM-audio in 1 channel that is not recognized in Foobar2000. VLC can play that PCM-audio in 1 channel though.
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Old 19th November 2019, 10:03   #2  |  Link
tebasuna51
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Not problem here encoding a wav 1 channel to AAC (qaac) with Foobar2000:

Code:
Audio
ID                                       : 1
Formato                                  : AAC LC
Formato/Info                             : Advanced Audio Codec Low Complexity
ID códec                                 : mp4a-40-2
Duración                                 : 20 s 53 ms
Tipo de tasa de bits                     : Variable
Tasa de bits                             : 22,8 kb/s
Tasa de bits máxima                      : 168 kb/s
Canal(es)                                : 1 canal
ChannelLayout                            : C
Velocidad de muestreo                    : 48,0 kHz
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Old 19th November 2019, 12:00   #3  |  Link
Forteen88
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Thanks tebasuna51.
Maybe your source-audio is different? Here's my source-audio MediaInfo-data,
Quote:
Audio
ID : 1
Format : PCM
Format settings : Little / Signed
Codec ID : A_PCM/INT/LIT
Duration : 1 h 51 min
Bit rate mode : Constant
Bit rate : 1 152 kb/s
Channel(s) : 1 channel
Sampling rate : 48.0 kHz
Frame rate : 30.000 FPS (1600 SPF)
Bit depth : 24 bits
Stream size : 922 MiB (100%)
Default : No
Forced : No
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Old 19th November 2019, 15:08   #4  |  Link
tebasuna51
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My source have a WAVE_FORMAT_EXTENSIBLE header:

Code:
General
Nombre completo                          : D:\Test\AudioD\Samples\wavs\1w100.wav
Formato                                  : Wave
Tamaño de archivo                        : 1,83 MiB
Duración                                 : 20 s 0 ms
Modo de tasa de bits                     : Constante
Tasa de bits general                     : 768 kb/s

Audio
Formato                                  : PCM
Ajustes del formato                      : Little / Signed
ID códec                                 : 00000001-0000-0010-8000-00AA00389B71
Duración                                 : 20 s 0 ms
Tipo de tasa de bits                     : Constante
Tasa de bits                             : 768 kb/s
Canal(es)                                : 1 canal
ChannelLayout                            : C
Velocidad de muestreo                    : 48,0 kHz
Profundidad bits                         : 16 bits
Tamaño de pista                          : 1,83 MiB (100%)
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Old 19th November 2019, 19:59   #5  |  Link
Forteen88
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Thanks tebasuna51, I will re-save the source-audio file in some audio-program like Audacity, and if necessary, I'll lower bits (from 24 bits to 16 bits, like yours).
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Old 20th November 2019, 11:07   #6  |  Link
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qaac must accept 24 bits also.

Try output WAVE_FORMAT_EXTENSIBLE with ChannelLayout: C, or the parameter --chanmask 4 using qaac command line.
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Old 21st November 2019, 12:37   #7  |  Link
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Quote:
Originally Posted by tebasuna51 View Post
qaac must accept 24 bits also.

Try output WAVE_FORMAT_EXTENSIBLE with ChannelLayout: C, or the parameter --chanmask 4 using qaac command line.
You can try to use BatchEncoder for qaac as well (there's a wiki page for setting it up).
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Old 21st November 2019, 13:42   #8  |  Link
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chros, thanks, that worked great too, and I like it more since it got a GUI, which is more user-friendly.
It's a perfect audio-encoding replacement for Foobar2000, except when I re-encode commentary-audio, which I often resample (SSRC) down from 48KHz to 44.1KHz.

Weird though that BatchEncoder creates AAC-files with the extension ".aac", when it's really a ".m4a" file. Foobar2000 told me to rename the .aac file to .m4a
And MediaInfo told me too that the .aac file got a container.
EDIT: Oh, weird, there are 3 modes that the user can output an AAC-file: "AAC: (MPEG-2/AAC) qaac" & "M4A: (MPEG-4/AAC) qaac" & "M4A: (MPEG-2/HE-AAC) qaac".
I didn't knew that QAAC could output to a MPEG-2 file...

Last edited by Forteen88; 24th November 2019 at 11:57. Reason: 3 output modes in Batchencoder...
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