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ADAU1761 volume control

SigmaDSP & SigmaStudio inventis May 6, 2010 00:00 3 replies Original on forum ↗
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inventis Question
May 6, 2010 00:00

hello

I'm looking for a volume control where the change happen with a costant db/s slew.

The algorithm for volume control in help file is not avaiable for the adau1761,

anyone has a suggestion how to implement this kind of algorithm?

Audio Signal Processors

SigmaDSP Audio Processors

adau1761

ADIApproved Reply
Aug 3, 2011 00:00

Hi Stephano:

I thought we had this volume control, but I can't find it somehow now. To do this graphically, you need to compare first see if you are going up or down. Use the conditional block to make the comparison. If your value is Zero, then set your starting point at very low value and use a multiplier (above 1) with some feedback to increment your current volume logarithmically. If your value is 1, things are easier. You simply need multiply your current volume by a multiplier (below 1) until you reach Zero (or a minimum value).

Let me know if this is clear.

Miguel

ADIApproved Reply
Oct 1, 2011 00:00

Hi stephano

This block will be available next week in a new SigmaStudio release.

Miguel

EZAdministrator Reply
Aug 2, 2018 00:00

This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

Thank you,
EZ Admin