Re: CVS commit : 0.98.1

On Fri, February 8, 2013 8:26 am, Michiel Broek wrote:
>
> Just trying it again without the picture
>
>
> -------- Original Message --------
> Subject: 	Re: [Jamin] CVS commit : 0.98.1
> Date: 	Thu, 07 Feb 2013 22:20:44 +0100
> From: 	Michiel Broek <[email protected]>
> To: 	[email protected]
>
>
>
> On 02/07/2013 08:14 PM, Patrick Shirkey wrote:
>>>>
>>>>> This part works fine.
>>>>>
>>>>>> Depending on which item is selected affects each output channel. Not
>>>>>> sure
>>>>>> about the simplest way to handle the multichannel output meters and
>>>>>> volume
>>>>>> controls though.
>>>>>>
>>>>> Maybe under a new tabs something like a number of boxes equal to the
>>>>> number of bands (just like the compressor tab), and in each box a
>>>>> level
>>>>> control, limiter control and level meters.
>>>> There are a few ways to handle this in the interface.
>>>>
>>>> 1: Radio buttons on the Limiter section
>>>>
>>>> ex.
>>>>
>>>> [all] [low] [mid] [high]
>>>>
>>>>    [    limiter controls    ]
>>>>
>>>>
>>>> 2: New scrollable tab in the upper tab panel
>>>>
>>>> 3: Tabbed controls for each compressor
>>>>
>>>> 4: Add the controls directly under the compressors by extending the
>>>> height
>>>> of the interface.
>>> That would be a bad idea, see below.
>>>
>>>> 5: New scrollable panel for the lower tab section with choice of 3 or
>>>> 4.
>>>>
>>>>> And below that a slider with
>>>>> crossover frequencies. That must be a new band splitter independent
>>>>> from
>>>>> the one for the compressors.
>>>>>
>>>> I'm not sure how this fits. Can you give a little more detail? What is
>>>> the
>>>> purpose of a second xover?
>>> The second xover and outputs/limiters/delay belong to driving an active
>>> speaker system. The crossover frequencies are different then one would
>>> need for a multiband compressor. It is even so that once the extra
>>> outputs are calibrated for the active speaker systems it is driving,
>>> you
>>> normally do not touch any settings anymore.
>>>
>> The intention is to make the bypass on the compressors work too. At the
>> moment they are hardcoded because that was the easiest way to get a
>> proof
>> of concept out the door.
>
> Ok.
>
>>> Different is the three compressors, the xover frequency choice is a
>>> personal taste and also dependent on the music style. This is more an
>>> art and taste part while the extra outputs is pure technical.
>>>
>>> Eventually, if the extra outputs, xover limiters etc were in its' own
>>> application, it would be a solution too and for live use you should
>>> chain mixer -> original jamin -> xover/limiters app -> lwo mid and high
>>> amplifiers and speakers.
>>>
>> If the compressors are bypassed do you need a seperate application?
>
> Not really. I attached a drawing based on the original drawing on the
> website. The bottom part on the drawing makes me think that the original
> limiter and output level is now duplicated in the new channels.
>
> First some ideas on the extra output channels and how DBX uses them
>

So effectively we are talking about a whole new section for the
multichannel output that comes after the signal has been processed for
stereo output.

That means pluggin a new xover into the final stage stereo output signal
and splitting it by as many channels as the user requires.


> If there are more that two bands, the lower band is driven by the
> crossover using as a bandfilter. Only the highest output uses a shelf
> filter. What they do in single band mode is to use only the high output
> and put the shelf frequency probably at 10 Hz.
>
> I think this is a good idea to make the system flexible, in single band
> mode it is classic Jamin. To make it a two band system, the crossover is
> something like 800 Hz, so the high channel is 800 upto whatever is
> possible,, and the low channel 10 up to 800 Hz.
>
> That system with its' crossover is being fed by the boost stage. (In my
> drawing the original level and limiter is still in place.
>

For the multichannel option do we need the boost+limiter on the stereo
signal before the secondary xover? I'm not going to take it out but it
might not be good to have too many boost+limiters int he mix. Probably it
should be disabled by default.


>
>
>
>>> That is the reason why I think it is logical to add a tab in Jamin
>>> where
>>> all controls for the extra xover and output drivers can be placed. I
>>> will try to make a diagram later this evening.
>>>
>> We should try to keep the signal flow. leading the eye down the
>> interface
>> and then back up again to the output controls is bad UI design.
>>
>> How about a collapsable panel for the multi channel band outputs
>> directly
>> under the compressor panel so we don't add extra space unless it is
>> explicitly requested?  We could also make the compressors optional by
>> hiding the compressor panel.
>
> I agree that the screen should represent the signal flow, it should be
> logical.
>
> To make the best use of the available space there are some thing that I
> find important. When I use Jamin I allways want to see the several level
> meters in the compressors, the spectrum and so on so that you can see
> what the signals are doing. It may be possible to show everything in one
> view if you use popup's or some other idea to bring up the controls of a
> part in the system. For example I don't need all the compressor controls
> at the same time if I'm only adjusting the Low compressor. Only popup
> the sliders when needed save a lot of space.
>

It would be nice to view the multiband and the compressor scales at the
same time. We could move the compressor scales to the compressor section
and add a tabbed view either per compressor or as a group.

> It may even be safer that the controls need to be activated to adjust
> them. You call it a collapse panel, I don't know exactly what you mean
> by that but it looks to me that for the user it has the same result.
>

Basically the panel is not visible unless required. When required it will
extend the size of the window or replace an existing section. It's similar
to tabs but has a slightly different visual action in the display
procedure.

Basically we can have a button either in the toolbar or under the master
output that enables the multichannel section of the interface.


--
Patrick Shirkey
Boost Hardware Ltd

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