Re: Fwd: Re: merging mono files

Erich Eckner <[email protected]> Fri, 9 Dec 2016 18:48:54 +0100
Newsgroups	gmane.comp.audio.sox
Message-ID	<[email protected]>
Hi,

I just had a brief look at your example files and it looks like the mono
files are actually stereo, but with one channel muted (in retrospect I
think, you mentioned that). So the correct sox comman to combine these
would be

sox -M left.wav right.wav stereo.wav remix 1 4

this imports all 4 channels (actual left channel, silent right channel
in left file, silent left channel in right file, actual right channel)
to sox and exports only the actual left and right in one file (a.k.a.
stereo).
However, this will still not preserve the markers.

regards,
Erich

On 09.12.2016 15:10, Dr. Mark Bugeja MD wrote:
> The mega links works - just tried it myself.
> 
> These are the original left and right wav samples and the stereo (sox
> generated) file together with the bat file used.
> 
> https://mega.nz/#!oYYlARqQ!HMwkzCuDoFjBQvUwEFJjnrDbuJrN5kQ6ptKlEV5QWng
> 
> 
> On 09/12/2016 14:51, Jan Stary wrote:
>> On Dec 08 14:36:54, [email protected] wrote:
>>> Loops are markers that allow appropriate software to keep sounding a
>>> note
>>> (recorded sample) played digitally on a MIDI keyboard for as long as the
>>> note is held down even though the recorded sample may be of only a few
>>> seconds' duration.
>>>
>>> The release marker is placed in the point where the note is released
>>> in the
>>> actual recorded sample and where the sounds starts to fade away. The
>>> software needs to know that moment especially if there are multiple
>>> releases
>>> available for that note that would represent "staccato", "portato" and
>>> longer held notes. This exercise renders more realism when recorded
>>> samples
>>> are played from a "sampleset" loaded in software like jOrgan,
>>> GrandOrgue and
>>> Hauptwerk.
>> This would be a perfect beginning of your original post.
>> Now I understand why you need to preserve them: you are building
>> and actual sample library to be used with MIDI. Indeed, attack
>> and sustain and release and decay are indisposable.
>>
>>> Picture (42kB):
>>> https://mega.nz/#!dQIwkDKI!QlrmlYHywFqpG9ujJfJLBm_1skxaYz88AJJJy4Euxs0
>> An error occurred while loading MEGA.
>> Filename: :0
>> Exception: out of memory
>> Please try again later. We apologize for the inconvenience
>>
>>> In the example demonstated there is no release marker as the "tail"
>>> of the
>>> waveform was removed and saved as a separate file. So the end of a loops
>>> would be the release marker in such instances.
>>>
>>> Clearly from this picture loops and markers were not retained in the
>>> merger
>>> using sox though the exercise was purely a simple exercise without any
>>> frills of extra codes.
>> I don't have the picture, but I thnik I can picture it.
>> How is a piece of audio software (a clickwty editor)
>> expected to display a waveform with cue points such as release?
>> Especially if there is more than one possible release point?
>>
>> Can you please post some of the original files (that do have
>> the markers) so that we make actually look at them?
>>
>>     Jan
>>
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