Quantcast
Channel: EngineerZone: Message List
Viewing all articles
Browse latest Browse all 24339

Re: Readback gain reduction of Dynamic Processor with ADAU1452

$
0
0

    Hello Bernd and Miguel,

 

    SteveL came up with an ingenious way to produce a true exponential decay for a level meter.  By applying feedback to a External Decay Peak Detector, he sets up the differential equation dy/dt = - Ky, which solves to y = e^ (-Kt).  The original, shown at https://ez.analog.com/message/64727#64727 ran on a -1701, but easily ports to a -1452 as shown:

Level_Meter-Readback-1452--2-sch_pic.png

Level_Meter-Readback-1452--2-rslts_pic.pngThe result is an exponential decay, which makes an excellent level meter.

 

     I haven't found a compression block that offers a gain reduction (ratio) output, but the limiter block definitely does.

 

 

     Best regards,

 

     Bob


Viewing all articles
Browse latest Browse all 24339

Trending Articles



<script src="https://jsc.adskeeper.com/r/s/rssing.com.1596347.js" async> </script>