On Sat, May 10, 2008 at 6:41 AM, Julien Claassen <julien(a)c-lab.de> wrote:
Hello!
I can only reliably comment on one aspect: Clipping and volume:
ecasound -i input.wav -o null -ev
Will give a long statistic and the last line of that says something like:
(audiofx) Max gain without clipping, all: 1.69677.
that means with:
ecasound -i input.wav -o output.wav -ea:169.677
you can amplify your file to full volume without having clipping.
You could alternatively use some normalising software like:
ecanormalize input.wav
If it tells you the the file is already normalised, it means (in 99 of 100
cases), that there is clipping.
Other interactive ways might be some graphical analysing software, take a
look at
linuxaudio.org or at Dave's page
linux-sound.org, they should list
enough software in this field.
For glitches I don't know, listen, perhaps some fft-based piece of software
exists, which could find possible glitches, by finding "broken waves", with
methods of mathematical analysis.
HTH.
Kindest regards
Julien
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For software caused glitches: ardour has an option to stop recording
if jack has an xrun (an xrun being the most likely kind of software
glitch). I would turn this option on when recording, and if a track is
interrupted in the middle somewhere, re-record starting at that track.
For post-production mastering (which you need to get the most out of
your raw recorded material) there is jamin, but how to do
post-production mastering is a bit too big a topic for an email (as I
understand it, there are plenty of folks out there which will offer
you multiple-year courses in the subject for a considerable fee).