Re: [Jamin] CVS commit - 0.8.37

[R P. <rt...@ya...>]

Hi Jan,

> 	The problem as I see it right now is that Uwe's
> patch is for an old
> version of JAMin.  Another thing is that it is a
> plugin of some sort. 
> Do we really want to do that or build it in?

It's a LADSPA plugin that runs in Ardour on a per
track or bus basis. The modification to JAMin enables
interpretation of scene change instructions. Well,
that's my assumption.

  The
> way it appears to work
> is by setting scene changes based on times from the
> JACK transport
> time.

It's not the end of the world but I was afraid of
that. I'm not entirely sure of the consequences yet
but believe I know what the appropriate design should
be. I've described it to Paul as it applies to Ardour
and he's going to make the change. Essentialy,
automation events must be linked to the region and not
the timeline. I suspect we can still benefit from
transport position.

>  We can build that into the GUI fairly easily.

This part I've failed to understand. I have built the
LADSPA plugin, inserted it into an Ardour track and
applied scene changes. That works.

JAMin should be completely ignorant beyound responding
to scene change instructions. The location of the
events is the job of the plugin which is running in an
Ardour track. I suspect we don't want to save data of
any type if that's possible.

I was assuming that's how the plugin was designed.
However, I see this plugin in Rezound. Have you looked
at it?

>  The real trick is
> saving the number of automated changes, scene
> numbers and times in the
> .jam file.

  Before we implement this we need some
> input from Steve and
> Jack.  I must admit that I don't see the need for
> this.  It seems that
> in order to set the automated scene changes you'd
> have to run through
> the session.  Once you've done that why do it again?

Consider the tasks involved in mastering a ten song
album. There are many and they include comparing gain
of hot and low volume spots for all songs across the
album.

With that in mind, Ardour features Playlists. They
essentialy enable us to create mulitiple region views
for any given wave file for all tracks. Ardour will
soon have user definable names for Playlists. The
objective is to create Playlists along the order of
song-hottest-volume, song-lowest-volume, song-head,
song-tail, etc.

song-hottest-volume is probably a five second snippet
of audio and one exists for every song so you have
song#01-hottest-volume through song#10-hottest-volume.
These playlists are moved on the timeline so that they
line up heads to tails. Total length 50 seconds.

With JAMin scene change automation, an engineer can
engage transport play and know exactly how the hot
volumes of every song compare to the other songs.

Another example; however, I don't even know if this is
possible but Paul informed me that Ardour will perform
freewheel mode direct to CD output. With all songs
aligned heads to tails on the Ardour timeline with the
exact amount of timing between them as they are to
appear on the album, engage transport play with scene
automation and watch the mastered album burn to disk.
I guess you use song marker points to distinguish each
song. Is that doable?

One point I've overlooked, these mastering sessions
use an Ardour return bus that can 'Export' Selection
or Session to disk, CD or whatever. So, you never
print the mastered file back into an Ardour track.
This type of session eliminates the need for a
destructive wave editor like Rezound--heads, tails,
timing are configured in the Ardour editor. When
you're doing albums, this becomes a significant time
saver.

The bottom line is we create much greater control and
save a significant amount of time.

My thoughts on this topic are the result of doing a 13
song remastering job. I used the described session and
ran 26 tracks, 13 of the original masters and 13 for
raw mixes. By routing original masters to
alsa_pcm:playback_13,14 and
jamin-return:playback_15,16 I was able to roll
transport and with one button push compare the results
of my new work with the existing.

Let me know if this starts making any sense. It makes
sense to me but strangely enough that don't always
mean much. :)

ron 

> Jan
> 
> 



	
		
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