How do Iencode MP3 to AAC using Nero Digital? How do I use MKVMerge?

[rocky12]

1.) How do I encode from MP3 to AAC using Nero Digital Audio? It's a command line tool? What is good command to encode it at 256kbps? Does the sampling rates have to be set at 48? I know for Lame for example, it would be --resample 48. Lame doesn't encode to AAC. It's MP3. I just just setting an example for sampling rate command.


2.) Should I use this following command to put 264 into a MKVMerge container? Will this command also mux the AAC tracks into my H.264 file?

MKVMerge --title "My sample video" -o "Sample.mkv" --default-track 0:true --default-duration 0:1001/30000s "Sample.264" --language 0:eng "Sample.mp3"

[Baldrick]

1. You can use a gui like LameXP.
2. Use mkvmerge gui

Or do you just want to use the command line tools? Maybe the guis will show the command line parameters when you convert using them. Or read the MANUALS....

http://www.bunkus.org/videotools/mkvtoolnix/doc/mkvmerge.html

neroAacEnc [options] -if <input-file> -of <output-file>

Where:
<input-file>  : Path to source file to encode.
                The file must be in Microsoft WAV format and contain PCM data.
                Specify - to encode from stdin.
<output-file> : Path to output file to encode to, in MP4 format.

  ==== Available options: ====

Quality/bitrate control:
-q <number>   : Enables "target quality" mode.
                <number> is a floating-point number in 0...1 range.
-br <number>  : Specifies "target bitrate" mode.
                <number> is target bitrate in bits per second.
-cbr <number> : Specifies "target bitrate (streaming)" mode.
                <number> is target bitrate in bits per second.
                When neither of above quality/bitrate options is used,
                the encoder defaults to equivalent of -q 0.5

Multipass encoding:
-2pass        : Enables two-pass encoding mode.
                Note that two-pass more requires a physical file as input,
                rather than stdin.
-2passperiod  : Overrides two-pass encoding bitrate averaging period,
  <number>    : in milliseconds.
              : Specify zero to use least restrictive value possible (default).

Advanced features / troubleshooting:
-lc           : Forces use of LC AAC profile (HE features disabled)
-he           : Forces use of HE AAC profile (HEv2 features disabled)
-hev2         : Forces use of HEv2 AAC profile
                Note that the above switches (-lc, -he, -hev2) should not be
                used; optimal AAC profile is automatically determined from
                quality/bitrate settings when no override is specified.
-ignorelength : Ignores length signaled by WAV headers of input file.
                Useful for certain frontends using stdin.