VM-42 Valve Mixer ... no longer available

rodos1979 · Post by **rodos1979** » Wed Jan 10, 2007 5:27 pm

Wouldn't the addition of a phase compensation button (like the CW mixers have) solve the issue?... Ok, maybe it is hard to implement... BTW, if you load a device into the inserts slots, as it is now, doesn't cause phase issues?...

It sounds cool Shroomz! Thank you very much for the device!

I d' like too to have a stereo link button, so that settings one one channel are duplicated to the next one, for stereo use.. Some other features that I would like would be:
- when you double-click a knob it should return to the 0 position and not to the middle position
- the ability to have a LPF.

rodos1979 · Post by **rodos1979** » Wed Jan 10, 2007 5:54 pm

I just had this idea.. Have a look..

Shroomz~> · Post by **Shroomz~>** » Wed Jan 10, 2007 8:11 pm

rodos1979 wrote:BTW, if you load a device into the inserts slots, as it is now, doesn't cause phase issues?...

In theory if you load a different effect into each channel you could possibly end up with a different delay on each channel. Delay between dsps on the same board is 2 - 6 samples, so if you insert four instances of the same effect there needn't be an issue with phase. You'd just have to realise the 2-6 sample delay in the device using those inserts (providing those 4 effects are loaded on the same dsp board).

Shroomz~> · Post by **Shroomz~>** » Wed Jan 10, 2007 8:16 pm

btw rodos, I also had a channel strip in mind & that's why I put direct outs on the channels just before the mix stage. So basically, this can also be used as a 4-channel strip as well as a mixer

rodos1979 · Post by **rodos1979** » Thu Jan 11, 2007 4:01 am

I know.. but this device is TOO heavy to be used as a simple colouring strip before a CW mixer.

When I load a fourth instance of it I get a DSP limit error, which cant be resolved after optimizing (I have 2 Pulsar II). So, that means that I can have a maximum of three instances, which amounts to 12 mono channels or 6 stereo ones. Certainly not enough when mixing. I think a simple device such the one I describe in the Device Wishlist, that does only the colouring thing, would be more handy to use just as a channel strip... I think...

But that is just a device that I wish it existed! It doesn't mean that I necessarily expect you to build it!... But it would be totally useful I think, and it is something that everyone would be interested in (I suppose

).

Shroomz~> · Post by **Shroomz~>** » Thu Jan 11, 2007 4:11 am

It would be a great help to me if you could check how many instances you can load into an empty project. I'd expect you to be able to load 5 instances onto 5 of your primary Pulsar2's 6 dsps which would leave space for IOs etc & would give you 20 channels.

rodos1979 · Post by **rodos1979** » Thu Jan 11, 2007 4:18 am

Into a totally empty project I get a DSP limit error when loading the fifth instance. Optimizing DSP load, doesn't solve the problem.. So, maximum I get is 4 instances of the device. [ I have a Pulsar 2 and a Pulsar XTC]

Shroomz~> · Post by **Shroomz~>** » Thu Jan 11, 2007 4:28 am

Very strange. It should definatetly be loading on 1 dsp.

In sdk you get an overload message if your module is set to load on 1 dsp but exceeds the limit, so I don't think there's much room for error in that sense.

I'll PM you a link to a version without the insert slots shortly. I'd really appreciate if you could test it in an empty project for me.

Thanks !!

Shroomz~> · Post by **Shroomz~>** » Thu Jan 11, 2007 4:30 am

beta v0.6 now available.

- added midi IOs & activity LED to circuit again (I'd removed them whilst testing dsp loads & forgot to put them back)
- Fixed bug in HPF freq' controls. (the popup freq' values were inacurate due to a flaw in the control ranges)
- set min HPF freq' to 40Hz
- updated gui

rodos1979 · Post by **rodos1979** » Thu Jan 11, 2007 4:37 am

Shroomz wrote:Very strange. It should definatetly be loading on 1 dsp.

In sdk you get an overload message if your module is set to load on 1 dsp but exceeds the limit, so I don't think there's much room for error in that sense.

I'll PM you a link to a version without the insert slots shortly. I'd really appreciate if you could test it in an empty project for me.

Thanks !!

sure!

I ll download now the 0.6version to check..

edit: same behaviour with the 0.6version

Shroomz~> · Post by **Shroomz~>** » Thu Jan 11, 2007 5:30 am

I can load 12 instances onto our 14dsp board with an error message on the 13th which it won't load. For some reason it won't load onto dsps 6 or 7 of the 14. I just made a version which loads onto board 1 (the second card in a system) to see how many I could load onto our Pulsar2 & I could only load 3 instances onto 3 of the 6 dsps error free. I don't understand why some dsps won't load a single dsp module such as this. It makes no sense to me at the moment. Removing the insert slots doesn't help, so it's not that causing a problem.

Anyway, you'll find attached a version of 0.6 which loads onto your 2nd card which should let you get another few instances running if you wanted.

Mr Arkadin · Post by **Mr Arkadin** » Thu Jan 11, 2007 6:17 am

Haven't tried this yet - but second card is good for me - i have Pulsar2 in slot 1 and SCOPE SRB in slot2, so should be good for me. Will test later. Well done on this Schroomz.

musurgio · Post by **musurgio** » Mon Jan 15, 2007 6:31 am

Dear Shroomz,
I keep on playing with your nice sounding mixer and I mean nice...
I ALWAYS use the full drive control to have that nice tube warmth.
Will you so consider a lighter version of your mixer ??
That will NOT need the mixer part only inputs and direct outputs, no drive control just full driver standard NO mixer channel knob , no nothing by the way...
Like ECC83 !
The mixer sounds so nice with full drive.
Maybe this way you can make a special 8 or 12 or even 16 channel version with nothing but a simple bypass switch.
Even if the volume will be louder due to the drive control we can use a mixer from SFP on outputs to calibrate volume...
Is it difficult to do ?
Thanks !
Dimitrios

Shroomz~> · Post by **Shroomz~>** » Mon Jan 15, 2007 8:24 pm

Check this one musurgio >>> http://www.planetz.com/phpBB2/viewtopic.php?t=21224

btw, removing the gui or gui elements will save virtually no dsp power