22 Nov
2012
22 Nov
'12
1:10 a.m.
Fons Adriaensen <fons(a)linuxaudio.org> wrote:
On Wed, Nov 21, 2012 at 10:13:21PM +0000, Eric Wong
wrote:
I already pretty much do what you describe using the sox and play(1)
commands with trim.
I'm not _totally_ anti-GUI :) I also combine sox trim with the
spectrogram effect of sox (w/ feh to open the .png) to visualize
portions of tracks. I also use --plot=gnuplot with sox to
visualize EQ curves.
If I built a tool it'd support several command-line tools (starting with
SoX and ecasound, but maybe ecasound+LADSPA/LV2 can do everything SoX
does...).
I've been considering writing a make-like
tool, but would like know if
something existing fills the role. I haven't been able to find
information on using csound for mastering a few sections of audio, but
maybe that could work...
Not what you want, but using Ardour's automation, gain curves,
etc. combined with the 'export' facility amounts to some form
of scripting. I don't know of any command line tool that would
allow the same. If you want to apply some process on an audio
file from position A to B, the basic problem is to determine
A and B. Having a view on the actual waveform helps a lot to
do that. The only alternative I see would be some command line
player that allows to define markers, also offers some 'preview'
facilities such 'play from T - N seconds to T', 'play N seconds
starting at T', 'move T by N milliseconds', etc. etc., and then
offers some convenient way to store such information for later
use by off-line processing. I'd be interested to have such a
thing as well, but it takes a lot of programming to make it.