Re: merging mono files

["Dr. Mark Bugeja MD" <marcusfb@gmail.com>]

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I have already alluded to the audio software I use, in previous posts. 
However there is one other I have not mentioned.

I create markers using /*iZotope RX3 Advanced*/. It allows me also to 
clean up samples from noise, cut pieces out, and do all sort of editing, 
like eliminating artefacts, change frequency of a good sample to say 
create missing/ unplayable or discordant notes when sampling a real 
instrument like an old pipe organ.

Loops are then generated. I use /*L*//*oop*//*A*//*uditioneer*/ 
(https://sourceforge.net/projects/loopauditioneer/) created by Lars 
Palo, a small but marvellous piece of software. It also sports other 
features eg generating pitch information to wav files vital when 
selecting to play the virtual instrument set to a different temperament 
to that which it was created from.

Some software if used may not show the loops/ markers and if I recall 
may even ignore and delete them upon saving any changes. I think, but I 
may be wrong, Audacity would do that but /*Sony Soundforge*/ doesn't. I 
stand to be corrected. I don't use Audacity that much.

Just for those who are interested, I have a website about my project in 
creating digital samplesets of instruments from recorded samples of real 
instruments:

  * http://maltesepipeorgans.webs.com

One may listen to these virtual instruments, as they are played by 
remote musicians in their homes, in my other website:

  * http://maltesepipeorgans2.webs.com

I cannot add more than this since I am in no way technically minded to 
be able to answer certain questions. I am capable of using some pieces 
of software in so far as what I have been taught to do by others in the 
know and, like a monkey, I just copy the steps I was shown to accomplish 
specific, routine and repetitive tasks in the process of creating 
digital wav files. Some processes are carried out by others eg noise 
reduction which can prove quite challenging at times considering that 
recording are made in churches where chairs are dragged across, doors 
banged, people talk in the background, cars, buses, trucks and motor 
bikes zooming past and hooting their horn in the busy streets outside, 
church bells ringing half way through a session, birds chirping, etc etc 
etc. Most frustrating. But the end results of hundreds or even thousands 
of hours of hard work are the clear and crisp wav files that can do 
justice to the instrument being replicated digitally.

The task I am now performing is basically reversing part of the process 
that was done to these files after loops and markers were created.... 
that of recombining the L and R channels back into single stereo samples 
preserving the processing done before the separation. Loops and markers 
are created in positions that apply to both channels in a stereo file so 
they are bound to match exactly when recombining them again.

Mark

On 08/12/2016 23:23, Jeremy Nicoll - ml sox users wrote:
> On 2016-12-08 20:37, Dr. Mark Bugeja MD wrote:
>> I cannot give any more information on where the loops and markers are.
>> They are created using audio software.
> Well, what software?
>
>
>> Apologies for any inconvenience caused.
> I'm sure no-one thinks you've caused any inconvenience.  We're all here
> because we want to process audio files, and like the approach that sox
> offers.
>
> In my case, I use sox for things because it's easy to keep notes
> describing
> what sox command I used to do something or other, whereas documenting
> how I
> may have used a GUI-based application is far more difficult.  And, I
> worked
> as a computer programmer so have little difficulty using sox (& other
> tools)
> to find things out about portions of a set of audio files, and then use
> my
> own programs to generate sox commands to manipulate those files.
>
>
>> At least I got as far as
>> merging two files using a bat process. Re-creating loops and markers
>> and checking each is as much of a task as the process at hand so might
>> as well just get on with it.
> Does the audio tool within which you created these markers offer any
> options
> for exporting marker definitions separate from audio data?
>
>



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