Inverted meter~

    Dec 26 2008 | 12:52 am
    Does a downward-reading version of meter~ exist? I'm creating a compressor and I'd like to have a meter that shows gain reduction in the standard format where the LEDs push down from the top rather than climb up from the bottom. Thanks.

    • Dec 26 2008 | 1:54 am
      The standard way to do this is to have your signal drive the meter, not have a special type of meter. The meter should always just reflect the actual state of the incoming signal. Therefor, a signal which reflects the level below threshold (i.e. sits at full scale when no gain reduction is occuring) rather than a meter which does this for you is more useful, I think. Of course, your mileage may vary.
      Depending on how your patcher works, you could for example compare the current output signal against the current input signal (assuming the output is lower) and then subtract this difference from a full-scale signal, and viola! you have the gain reduction signal.
      Have a look inside the help and tutorial patches for the OMX limiter/compressor objects for how they use standard meters to show gain reduction, as well.
      Hope this helps!
    • Dec 26 2008 | 4:23 am
      Yeah, I had seen that as well. I've seen a number of hardware and software compressors and expanders that exhibit the behavior I describe and was hoping to replicate that behavior.
    • Dec 26 2008 | 5:29 am
      Unless I misunderstand your post, my suggestion will also give you the behavior you desire, no?
    • Dec 26 2008 | 5:38 am
      What I'm trying to do is have the first LED that illuminates be at the top of the vertical meter~ object, then each successive LED is further down the meter until it gets all the way to the bottom. So, instead of it being a bottom-up meter~, it would be a top-down meter~. I hope that makes sense.
    • Dec 26 2008 | 6:03 am
      Ahh, ok, I see what you mean. My suggestion would effectively turn segments off from the top down rather than turn them on. Same info, different aesthetic. Let me know what you find.
    • Dec 27 2008 | 9:34 am
      Try this patch, which use LCD and a pict to achieve the GR meter.
      you may just have to scale your signal for the input.
      Are you doing a feedforward or feedback compressor ?
      If you need any further advice or sharing , I may be able to help as myself I'm doing a lot with compressors too.
    • Dec 27 2008 | 6:22 pm
      I love it! Thanks! I'm doing both a sidechain compressor and a downward expander, and this meter will be perfect!