Re: Fwd: Re: merging mono files

On 2016-12-10 06:44, Dr. Mark Bugeja MD wrote:
> The files have to match in name not size

Oh?

I think what you mean is that you WANT the final stereo file to have the
same (note/pitch) name as the left & right parts.

But from everything you've said, as each pair of left & right files are 
meant to
have been created from the same original source file, they should have 
the exact
same size.  Putting a check that that's actually the case into a script 
that
is automating merging is the kind of thing a programmer would do as an 
example
of 'sanity checking'.  It should always be true, but if it isn't it's 
better
that the script stops what it's doing so the user can investigate why.

On the other hand, if you already have lots of pairs of files which are 
not the
same size... why is that?

Maybe they contain the same number of audio samples, but different 
amounts of header
data?  If that's commonly the case I would add to my script calls of sox 
with the
stat or stats (or both) effects to check in more detail that the audio 
in each file
has common characteristics.

I might also change code that expected files to be the same size, to 
something that
(say) accepted only very small differences in size.


It's normal for carefully-written programs to check that everything they 
do actually
works, because a program can get into a terrible mess if it just issues 
commands and
assumes that every one of them did exactly what was hoped.  Depending 
somewhat on the
language that a program is written in, maybe two thirds of the code in a 
program will
be all about checking for problems and recovering from them.

-- 
Jeremy Nicoll - my opinions are my own

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