Audio speed issue

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Joris
Posts: 5186
Joined: Fri May 22, 2009 11:38

Re: Audio speed issue

Post by Joris »

Ah! That could very well be the missing piece of the puzzle. What I think is happening is the following:

The master speed is in a range of 0...10. DMX channels are in a range of 0...255. To get a value of 1 for the master speed, you would need to send value ( 255 / 10 ) * 1 from your desk. That would equal 25.5, and fractions are something that DMX can't send.

Sending value 25 from your desk means that you set the master speed to (25 / 255) * 10, which equals 0,9803921569. So ever so slightly slower than 1.

Because DMX sends full frame info, the master speed value is set to DMX value 25 aka float value 0,9803921569 on every frame. Even when you right click in it Resolume and don't change the value on your desk. As long as your desk is connected, it will send this value on every frame.

We will have to see if we can hack fix this so DMX value 25 actually means exactly 1. In the meantime, you should be able to workaround this by removing that channel from your personality.

satelitemac
Posts: 7
Joined: Mon Jul 27, 2015 14:13

Re: Audio speed issue

Post by satelitemac »

i think the problem is in the master speed value in the dmx/artnet librarie of the lighting console.
i cant see a number in the resolume interface of the master speed. i can in the layer speed a numeric vale but no in master speed.

i change the value and now is correct the speed but i dont know what value is...

thanks

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Oaktown
Resolume honorary member
Posts: 2837
Joined: Tue May 08, 2012 15:19
Location: Oakland, CA

Re: Audio speed issue

Post by Oaktown »

Joris, anyway you could change the DMX range to 0-250 for values from 0-10 so that 25 will send an exact value of 1. As an alternative, you could make the maximum value of master speed to 10.2 instead of 10 but that would get confusing for those of us who use MIDI and OSC.

Also, it would be so great to have an numeric indicator of master speed in resolume so that we can know what the current speed is.

Satelitemac, this is a good reminder that DMX is an aging standard! Use OSC and you'll be able to control all your parameters very precisely. For instance /composition/speed : <OSCVal f 0.100000> would be a speed of 1 on a scale from 0 to 10 and since you can send value with 6 decimals, you can really fine do some fine tuning.

satelitemac
Posts: 7
Joined: Mon Jul 27, 2015 14:13

Re: Audio speed issue

Post by satelitemac »

i found the problem.

the artnet value range in the lighting software (Chamsys MagicQ) have a bad value.
i found the correct value in a range of 0-255 in 26.

now all is in sinrcro.

great¡¡

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