audio cutting and exporting

audio cutting and exporting

[blinux-list]

Hi,

I am looking for accessible and easy to use audio application, which 
allows me to:

- select sound from point a to point b

- delete, move or export selected section

- export the result in multiple formats.

I know about Audacity, but maybe you know some more accessible and more 
easy to use editor.

My environment is Fedora 34 with Mate desktop and with all a11y 
variables enabled.

Thanks,

Pavel

audio cutting and exporting

[blinux-list]

I'm a long-time Audacity user, and I've found it to be about the best 
application available for what you're trying to do. You select the audio 
you want using shifted left and right arrows, similar to editing text, 
and you can shorten the selection on the left using control+shift+right 
or shorten the selection on the right using control+shift+left. Unlike 
editing text, if you shift+right and then shift+left, your selection on 
the right doesn't change, but you add sound to your selection on the 
left. An important set of keys for you is control+1, control+2 and 
control+3. Each file you import or track you record has a default zoom 
width based on its initial length. Control+2 resets that zoom width to 
something in the middle, it says normal. Control+1 zooms in, tightening 
the area that you select with shift+arrows and deselect with 
control+shift+arrows. Control+3 does the opposite. It zooms the audio 
out so that each time you select or deselect a section of your audio, 
the selected or deselected piece is longer. These keys also determine 
how far your cursor moves when you just want to seek through the audio 
to find the part you want to select. You jump further using control+3 or 
tighten the movement with control+1. And of course control+2 will take 
you back to a middle level. The rest is pretty straightforward. Deletion 
is achieved with the delete key, cut, copy and paste are the same as in 
a text editor, and file -> export selected audio will export what you 
have selected, even if you don't cut or copy it.


If you have access to Flatpak in Fedora, I would recommend installing 
the 3.x Audacity you'll find there, unless there is a packaged 3.x 
version already available. 2.x has a strange focus bug that seems to 
take you off your main track list randomly, usually putting you on some 
kind of drop-down box related to sound selection or device output. The 
3.x version in Flatpak doesn't seem to have this issue; no matter what I 
do, I always stay focused on the track list using 3.x, but my package 
management doesn't have that version, so I need to install from flatpak, 
which can be done easily using gnome-software. Hope this helps.

~Kyle

audio cutting and exporting

[blinux-list]

Hi,

in addition to what Kyle mentioned there is also dae (Digital Audio Editor),
much simpler indeed as it's a Python script that its author Willem van 
der Walt
made recently compatible with Python3.

Not source URL but here is the source directory in the Slint repo (the new
version is newdae, not dae in the archive):

http://slackware.uk/slint/x86_64/slint-14.2.1/source/dae/

You could also contact the author:
wvdwaltatcsir.co.za
replace at by the at sign.

Aldo this needs a Python3 pyeca module shipped in a recent ecasound package

Cheers,
Didier

.Le 16/07/2021 ? 16:27, Linux for blind general discussion a ?crit?:
> Hi,
> 
> I am looking for accessible and easy to use audio application, which 
> allows me to:
> 
> - select sound from point a to point b
> 
> - delete, move or export selected section
> 
> - export the result in multiple formats.
> 
> I know about Audacity, but maybe you know some more accessible and more 
> easy to use editor.
> 
> My environment is Fedora 34 with Mate desktop and with all a11y 
> variables enabled.
> 
> Thanks,
> 
> Pavel

audio cutting and exporting

[blinux-list]

Hi Pavel,

Nama is another audio editor you might try.  It was written
for music production and like DAE, uses Ecasound to peform
the audio processing. You can issue commands in a terminal,
and also search for commands, plugins, etc. 

Nama works with WAV files. You define a region by a pair of
marks. For editing down a lecture, there is a compose
command that joins several regions together.

The mixdown command exports to multiple formats. 

A fairly recent version is available as a debian package.

Nama tries to make everything as easy as possible.
There is a mailing list for questions.

I'm the author, and happy to help :-)

Joel


On Fri, Jul 16, 2021 at 04:27:51PM +0200, Linux for blind general discussion wrote:
> Hi,
> 
> I am looking for accessible and easy to use audio application, which allows
> me to:
> 
> - select sound from point a to point b
> 
> - delete, move or export selected section
> 
> - export the result in multiple formats.
> 
> I know about Audacity, but maybe you know some more accessible and more easy
> to use editor.
> 
> My environment is Fedora 34 with Mate desktop and with all a11y variables
> enabled.
> 
> Thanks,
> 
> Pavel
> 
> 
> _______________________________________________
> Blinux-list mailing list
> Blinux-list at redhat.com
> https://listman.redhat.com/mailman/listinfo/blinux-list
> 

-- 
Joel Roth

audio cutting and exporting

[blinux-list]

Tim here.  Beyond the other options folks have recommended, here are
two more:

1) if your input files are MP3, using "mp3splt" (that's "split"
without the letter "i") manages to do it without losing quality as
would normally happen if you load a .mp3 converting it to raw audio
data, slice & dice, and then re-encode it back as a new .mp3 file.

I use this for automating the removal of some annoying adverts in my
podcasts. This splits off the first 40 seconds ("0.40" is "0 minutes
and 40 seconds") and the last (EOF=end-of-file) 30 seconds:

  mp3splt -o "%n_%f" podcast.mp3 0.40 EOF-0.3

It produces output files for each of those parts, but you can then
delete the parts you don't want.  It requires knowing where the
split-points are that you want to chop at.  Additionally, there's
"mp3join" which will paste such pieces back together, allowing you to
chop them up with mp3splt and stitch them back together in the order
you want without re-encoding the audio.

2) if you're processing .wav files, you can use "sox" 

 sox file_in.wav file_out.wav trim 30 $((20*60))

which will produce "file_out.wav" starting 30 seconds in and output
the 20 minutes following that.  It will work for a variety of
input/output formats, but transcodes, so you can lose sound quality.

Hopefully this puts a few more tools in your belt.

-tim


On July 16, 2021, Linux for blind general discussion wrote:
> Hi,
> 
> I am looking for accessible and easy to use audio application,
> which allows me to:
> 
> - select sound from point a to point b
> 
> - delete, move or export selected section
> 
> - export the result in multiple formats.
> 
> I know about Audacity, but maybe you know some more accessible and
> more easy to use editor.
> 
> My environment is Fedora 34 with Mate desktop and with all a11y 
> variables enabled.
> 
> Thanks,
> 
> Pavel
> 
> 
> _______________________________________________
> Blinux-list mailing list
> Blinux-list at redhat.com
> https://listman.redhat.com/mailman/listinfo/blinux-list
> 

audio cutting and exporting

[blinux-list]

Hi Tim-and-All: Please also consider mp3wrap which will combine files, but I 
usually must ajust the name it adds on an end.
Chime

audio cutting and exporting

[blinux-list]

On Wed, 21 Jul 2021, Linux for blind general discussion wrote:

> 1) if your input files are MP3, using "mp3splt" (that's "split"
> without the letter "i") manages to do it without losing quality as
> would normally happen if you load a .mp3 converting it to raw audio
> data, slice & dice, and then re-encode it back as a new .mp3 file.

You can also split Ogg Vorbis files with this tool.

A couple of other splitting options.

For raw/wav files, soundgrab is a simple console-based file splitter which 
lets you move around the file and select regions to be exported.  I've 
been using it for many many years for simple command-line-based file 
editing.

As the main website for it now seems to be down, you can get it from 
https://sourceforge.net/projects/soundgrab/

I usually use it in conjunction with sox and the quelcom tools (especially 
qwavjoin and qwavinfo to perform file editing.

Note that the quelcom tools also  have mp3 utils but I've never had much 
luck with them.  For mp3 I usually use madplay to find the split-points 
and mp3splt to do the splitting.

Finally ffmpeg should be able to slice up files without re-encoding but 
I've never actually used it for this so I don't know how good a job it 
does.

HTH,
Geoff.