Hello,
Our current design require meters (RMS and Peak) with hold functionality (Hold: The meter shows the last maximum value for pre defined amount of time and than gradually moves to the next maximum value of that period). this is very common in professional mixing consoles.
Is there a way to implement that with AW (it will be in addition to the standard AW meter modules)?
Thanks,
Yair
6:16pm
Hi Yair,
I presume you've taken a look at the different options available. None of them purport to have a "hold" feature. I am trying to find more info on the Custom function.
Meter <<< Help page
Note that the meter module is only useful within Designer for viewing the meter inspector while creating/editing a layout. Anything beyond this (control interface, paramsets/gets, etc.), and a Sink module should be used. So, if the goal is to export a sample value for display on an embedded product, I would recommend using a sink, after which you can do whatever you like as regards displaying the resulting value. Of course you can use the block statistics module before the sink to calculate average, peak, RMS, etc.
Thanks,
Gary
8:12pm
Hi Gary,
We been using meters fir displaying on an embedded products before and it worked. However, I don't mind changing is to use Sink, with some additional processing.
Can you propose the proper ways to use for:
- RMS Meter
- Peak Meter
- The required hold function?
Any idea will be appreciated ;-)
Best regards,
Yair
11:06am
Hi Yair,
The advice about sinks was taken from some of our internal documentation and to be honest, I don't really see any reason you can't use a meter on the embedded device if you've already figured out how to do it.
For a hold function, I think you'll need to track current sample and the previous two. If (x[n-2] < x[n - 1] && x[n - 1] > x) then that would be a peak - count samples/blocks for the desired amount of time before letting it decay. You will have to put the held value back into the "state" variable at that point.
Thanks,
Gary