Need a script for automation the convert a lot number audio files to another format Post: 302957614

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Top Forums Shell Programming and Scripting Need a script for automation the convert a lot number audio files to another format Post 302957614 by temp-usr on Tuesday 13th of October 2015 07:57:44 AM

10-13-2015

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Need a script for automation the convert a lot number audio files to another format

I have a lot number audio files in the MP3 proprietary format, I want to convert them to 'opus' the free and higher quality format, with keep metadata also.

My selection command-line programs are SoX (Sound eXchange) for convert MP3 files to 'AIFF' format in order to keep quality and metadata* and 'opusenc'[1] the official encoder for convert 'AIFF' files to 'opus' format. Most important part of the work is use of 'mediainfo' program for exporting metadata tags of MP3 files and giving them to 'opusenc' program for importing metadata tags to encoding opus files, also giving the bit-rate value of original MP3 files to 'opusenc' for encoding large size AIFF files in order to achieve the opus files with same bit-rate of original MP3 files, so I need a script for automation listed below operations:

1. Use sox for convert MP3 files in a directory with many sub-directory to the files with AIFF format with same name.

2. Use 'mediainfo' for exporting metadata tags (Album, Performer, Track name, Recorded date, Genre) and bit-rate value of original MP3 files.

3. Giving the previous step information to 'opusenc' (artist, title, album, date YYYY-MM-DD, genre)[1] and run it.

4. Delete MP3 and AIFF files after encode successfully done.

I want mentioned operations run consecutive on directories one by one.

My goal of this work is achieve to more freedom. Thank you very much for help and time that you devote to this work.

*: I choose AIFF format because it supports ID3v2 tags but when for test I convert a MP3 file contains metadata to 'AIFF' format with 'SoX' program and convert it to 'opus' with 'opusenc', result was the output opus file lacks metadata (don't known what is the problem exactly) also there was need to specify bit-rate value of MP3 file, so use of 'mediainfo' is necessary.

[1]: https://mf4.xiph.org/jenkins/view/opus/job/opus-tools/ws/man/opusenc.html

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LEARN ABOUT HPUX

soxi

SoXI(1) 							  Sound eXchange							   SoXI(1)

NAME

       SoXI - Sound eXchange Information, display sound file metadata

SYNOPSIS

       soxi [-V[level]] [-T] [-t|-r|-c|-s|-d|-D|-b|-B|-e|-a] infile1 ...

DESCRIPTION

       Displays  information from the header of a given audio file or files.  Supported audio file types are listed and described in soxformat(7).
       Note however, that soxi is intended for use only with audio files with a self-describing header.

       By default, as much information as is available is shown.  An option may be given to select just a single piece of information (perhaps for
       use in a script or batch-file).

OPTIONS

       -V     Set verbosity. See sox(1) for details.

       -T     Used  with  multiple files; changes the behaviour of -s, -d and -D to display the total across all given files.  Note that when used
	      with -s with files with different sampling rates, this is of questionable value.

       -t     Show detected file-type.

       -r     Show sample-rate.

       -c     Show number of channels.

       -s     Show number of samples (0 if unavailable).

       -d     Show duration in hours, minutes and seconds (0 if unavailable).  Equivalent to number of samples divided by the sample-rate.

       -D     Show duration in seconds (0 if unavailable).

       -b     Show number of bits per sample.

       -B     Show the bitrate averaged over the whole file (0 if unavailable).

       -e     Show the name of the audio encoding.

       -a     Show file comments (annotations) if available.

BUGS

       Please report any bugs found in this version of SoX to the mailing list (sox-users@lists.sourceforge.net).

SEE ALSO

       sox(1), soxformat(7), libsox(3)

       The SoX web site at http://sox.sourceforge.net

LICENSE

       Copyright 2008-9 by Chris Bagwell and SoX Contributors.

       This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as  published	by
       the Free Software Foundation; either version 2, or (at your option) any later version.

       This  program  is  distributed  in  the	hope  that  it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MER-
       CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

AUTHORS

       Chris Bagwell (cbagwell@users.sourceforge.net).	Other authors and contributors are listed in the ChangeLog file that is  distributed  with
       the source code.

soxi								 February 19, 2011							   SoXI(1)