Changing aac file frame rate?

[magsoud]

Hello
Please fast and good Way for Changing aac file frame rate (fps).
Thanks

[kypec]

AAC files do not have framerate (fps) because they are audio only. Digital Audio files have samplerate and bitrate attributes.

[locotus]

Guess what you're tryng to say is to speed up or slowdown
the audio, try UsEac3To, a gui for eac3to by tebasuna51.

[magsoud]

I extract aac file of 25fps MKV video file.
I changed the video file to 23.976fps. But I did not find a way to change the sound file.(BeSweet , eac3to)
Please help for aac file 25fps to 23.976fps (slowdown)!
Please Help for eac3to (AAC 25 to 23.976).

[Rodeo]

http://en.wikibooks.org/wiki/Eac3to/How_to_Use#Command_Line_Syntax

The option is called -slowdown

[magsoud]

Error!!!
"D:\eac3to v3.24\eac3to.exe" c:\1.aac c:\2.aa
c -25.000 -changeto23.976
AAC, 2.0 channels, 48kHz
Decoding with DirectShow (Nero Audio Decoder 2)...
Getting "Nero Audio Decoder 2" instance failed.
Aborted at file position 262144.

I downloading Nero AAC Codec and copy neroAacDec.exe, neroAacEnc.exe, neroAacTag.exe to eac3to dir.
http://www.nero.com/eng/downloads-nerodigital-nero-aac-codec.php
But Nero Audio Decoder 2 ERROR!!!

[Guest]

You must have Nero 7 (7.8.5.0 or newer version 7 only) or Sonic audio decoder installed for AAC decoding with eac3to.

You can find Nero 7 for sale online.

[tebasuna51]

Or you can decode first the .aac to wav with Faad (http://www.rarewares.org/aac-decoders.php)

"path\faad.exe" -b 2 -o c:\1.wav c:\1.aac
"D:\eac3to v3.24\eac3to.exe" c:\1.wav c:\2.aac -25.000 -changeto23.976

[magsoud]

Thanks @neuron2, @tebasuna51
I've installed Nero v7.11.10.0c
But again gives error!!!
Decoding with DirectShow (Nero Audio Decoder 2)...
Getting "Nero Audio Decoder 2" instance failed.
Aborted at file position 262144.

[Guest]

Where did you get the source file or how did you make it? Perhaps it is corrupted.

[magsoud]

Where did you get the source file or how did you make it? Perhaps it is corrupted.
http://ftp22.nero.com/Nero7/79a1617ac1f8b22196e2c6ed2724df74/Nero-7.11.10.0c_all_update.exe

[kypec]

http://ftp22.nero.com/Nero7/79a1617ac1f8b22196e2c6ed2724df74/Nero-7.11.10.0c_all_update.exe:eek: He (neuron2) meant your audio AAC file, not Nero 7 installation package.

[magsoud]

Found its way
Install Nero 7 and Then Activate Blu-ray/HD DVD Video Plug-in
work

[magsoud]

Only one problem
eac3to input.aac output.aac -slowdown -24
I'm Set "output.aac"
But
in the end output.m4a !!!

[tebasuna51]

Only one problem
eac3to input.aac output.aac -slowdown -24

The parameter -24 is ignored here.

But in the end output.m4a

NeroAacEnc only output aac in mp4 container -> m4a
Is not a problem to mux in mkv.

[magsoud]

tebasuna51 :thanks:
Pleas parameter for bitrate (aac file)

[tebasuna51]

With eac3to you can only select VBR (quality) mode.
By default is -quality=0.50.
The range is 0.00 to 1.00.
Recommended at least 0.35 (AAC-LC) for lossy sources, 0.5 or more for lossless sources.

[magsoud]

tebasuna51:thanks: