Re: Feature Request JAMin

On 02/05/2013 05:55 PM, Patrick Shirkey wrote:

Hi Patrick,


Just delete a lot.

> Delays are easy to add. We have several plugins available for that.
>
> What I am seeing is the following signal chain:
>
> input -> stereo  ->eq -> 32/1024 band -> xover
>
> |-> pre aux -> ->individual stereo channels -> volume control -> jack out
> |-> compressors -> stereo -> limiter -> volume -> stereo out
> |-> compressors-> post aux -> individual stereo channels -> volume control
>   -> jack out
> |-> compressors -> limiters -> individual stereo channels -> volume
> control  -> multiple jack outs
At the stereo out level you would have:


xover-out-lo level  delay limiter output
xover-out-mi level delay limiter output
xover-out-hi level delay limiter output

And that for left and right. No compressors in the output drivers, just 
limiters to protect the speakers.
You draw the compressors before the stereo out/xover, that is a good 
place in the chain.

If you use the usual 3 band compressor that is now in Jamin, then please 
note that the crossovers for the multiband compressor have different 
frequencies then the crossovers in the output stages. The compressors 
have more a functional choice of the crossover frequency, while the 
output crossovers are dictated by the speaker systems. It could be more 
or less then three output drivers and even just one if you should drive 
a full-range system.

Now that I wrote this down, it looks more an extension of the existing 
Jamin with extra outputs via crossovers, then a change in the original 
Jamin design.


> That provides a decent amount of flexibility but limits us to a maximum of
> 3 stereo channels of output.
>
> To give us more channels we would need to add support for more compressor
> chains. I'm not sure how the xover would be affected by having more than 3
> output paths. What is the general method for dealing with that case?
>
That is not needed, jus leav it that way and add the extra outputs.


>> Most hardware units have a smaller eq (31 bands) then Jamin has. In
>> addition there are notch filters on some of them to suppress feedback. I
>> hate that but sometimes you really need them. The current eq can do that
>> too so I think you won't need to add that.
>>
>> There are also units that have an input delay for larger ranges. That's
>> only useful for very large venues where you place extra stacks away from
>> the main stage. But it can be useful in small theaters as well if you
>> have extra speakers on a balcony or something like that. More for fixed
>> systems but it can be a nice addition.
>>
> We can add an input delay but currently we only have stereo inputs. Is
> there a need for more?

I don't think so. The idea is to chain these processors, but they can be 
fed from one stereo source. The main unit does not need a delay, but 
units with amps and speakers  further away from the stage need a delay 
to prevent echo effects for the audience. However, this can be done with 
a number of jack-racks with a delay plugin too. Or make jamin allow for 
extra plugins in the input stage.


gtx, Michiel.


------------------------------------------------------------------------------
Free Next-Gen Firewall Hardware Offer
Buy your Sophos next-gen firewall before the end March 2013 
and get the hardware for free! Learn more.
http://p.sf.net/sfu/sophos-d2d-feb