DSP options - Sure Audio DSP?

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   Thank you, had a good read and seems to make sense. Will have a play with it and see how I get on.

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Natedub Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 07 January 2013 Status: Offline Points: 126	Post Options Post Reply Quote Natedub Report Post Thanks(0) Quote Reply Topic: DSP options - Sure Audio DSP? Posted: 26 April 2018 at 11:11pm
	Thank you, had a good read and seems to make sense. Will have a play with it and see how I get on.

carlosdelondres Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 21 June 2012 Location: London Status: Offline Points: 243	Post Options Post Reply Quote carlosdelondres Report Post Thanks(0) Quote Reply Posted: 24 April 2018 at 1:45pm
	Have you looked at the peak rms limiter page in the Sigma Studio wiki? https://wiki.analog.com/resources/tools-software/sigmastudio/toolbox/dynamicsprocessors/peakrmscombonogain The settings are explained there fairly clearly, and there is an example showing the connections and how to set up a stereo limiter to act on the larger signal of the stereo pair. You use the graph on the limiter gui to set the threshold, then tweak the other settings as you like. I think I left them as they were apart from the RMS TC and Hold parameters, which I set according to the hpf of the band being limited. Seems to work, but others may have better knowledge, I haven't spent any time analysing the signal to see how the limiter is actually working...

fatfreddiescat Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 15 October 2010 Location: N.E.Wales Status: Offline Points: 1060	Post Options Post Reply Quote fatfreddiescat Report Post Thanks(0) Quote Reply Posted: 24 April 2018 at 9:03am


Natedub Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 07 January 2013 Status: Offline Points: 126	Post Options Post Reply Quote Natedub Report Post Thanks(0) Quote Reply Posted: 23 April 2018 at 8:35pm
	Thanks for your responseand apologies for my late reply! Yes everything else is working great. Only using it as a crossover and basic parametric. I want to add a limiter but havent a clue The rms limiter requires an external input? how do I connect this? An example of a limiter setup or explaination of the settings/ inputs would be ideal. Edited by Natedub - 23 April 2018 at 10:19pm

carlosdelondres Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 21 June 2012 Location: London Status: Offline Points: 243	Post Options Post Reply Quote carlosdelondres Report Post Thanks(0) Quote Reply Posted: 06 April 2018 at 6:53pm
	What aspect of the setup are you having trouble with? Have you got the rest of the crossovers etc. working ok? Can you upload your sigma studio project file somewhere and link to it, will try to take a look...

Natedub Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 07 January 2013 Status: Offline Points: 126	Post Options Post Reply Quote Natedub Report Post Thanks(0) Quote Reply Posted: 06 April 2018 at 6:15pm
	I am trying to set a basic limiter on my sure adau1701 board but am struggling to set it up. Even a basic peak limiter would be good. The more I read the more confused I become Does anyone have any examples or tips for this? Thanks

carlosdelondres Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 21 June 2012 Location: London Status: Offline Points: 243	Post Options Post Reply Quote carlosdelondres Report Post Thanks(0) Quote Reply Posted: 21 February 2018 at 11:34am
	Been waiting for something like this since I saw the solder pads for a bluetooth module on the sure In circuit programmer...nice! LIve DSP control via bluetooth app :) http://store3.sure-electronics.com/wondom-in-circuit-programmer-with-ble-bluetooth-for-app-control might have to pick one or two up...

Natedub Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 07 January 2013 Status: Offline Points: 126	Post Options Post Reply Quote Natedub Report Post Thanks(0) Quote Reply Posted: 28 November 2017 at 1:54pm
	Thanks for sharing. That is helpful.

carlosdelondres Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 21 June 2012 Location: London Status: Offline Points: 243	Post Options Post Reply Quote carlosdelondres Report Post Thanks(0) Quote Reply Posted: 25 November 2017 at 10:46am
	I seem to have figured out the issue with connecting to the JAB3 DSP. The JAB3 has a power saving cutout if no signal is detected, which also seems to cut out the DSP, preventing if from being programmed. Put a signal through the board while trying to programme it and the usb communication seems to work OK. At least for me...now reliably able to change settings at last.

Natedub Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 07 January 2013 Status: Offline Points: 126	Post Options Post Reply Quote Natedub Report Post Thanks(0) Quote Reply Posted: 22 October 2017 at 12:38pm
	Thanks for the input guys. Interestingly the few times I have managed to get it to work have been after pressing the reset buttons on the board. Nothing seems to make it work now. I have tried another dsp so now going to get a replacement icp sent out by sure.

studio45 Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 16 October 2007 Location: United Kingdom Status: Offline Points: 3860	Post Options Post Reply Quote studio45 Report Post Thanks(0) Quote Reply Posted: 19 October 2017 at 3:47pm
	I dunno if it's relevant but the cheap Arduino clones usually require some "fiddling" with the reset button to get them to accept a new program, ie press it either just before, or just after, clicking "transfer" on the computer. You find this out by repeatedly trying to send the program and pressing it at different moments. Some don't need it pressing at all (which is how the system is supposed to work) but it seems there is variability between individual boards on this. And if you have a board that needs "the fiddle", it will occasionally accept a program without after many many tries - sounds like what is happening here?
	Studio45 - Repairs & Building Commotion Soundsystem -Mobile PA

carlosdelondres Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 21 June 2012 Location: London Status: Offline Points: 243	Post Options Post Reply Quote carlosdelondres Report Post Thanks(0) Quote Reply Posted: 18 October 2017 at 5:43pm
	The dsp in my jab3 is definitely flakey, the one in the standalone adau1701 has been mostly ok. It seems to be a usb connection or driver issue of some sort. Also, tried a few cables and the one with the tightest fitting connectors seems to work most often. Not ideal for making on the fly changes. Ok for working out settings then writing to the eeprom... Edit, did try 2 icp1 programmers, no noticeable difference on that front. Edited by carlosdelondres - 18 October 2017 at 5:44pm