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ADAU1450 Volume Control

SigmaDSP & SigmaStudio Evin Jan 23, 2019 00:00 3 replies Original on forum ↗
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Evin Question
Jan 23, 2019 00:00

I did a volume control test in the ADAU1450 and found no way to control the volume output (only no output and 3dB 2 results)

Volume-Control2.jpg
Volume-Control2.jpg
Evin Reply
Jan 23, 2019 00:00

Attach test file

Volume Control TEST.zip

DaveThib Reply
Jan 25, 2019 00:00

Hello Evin,

You are going around the very long path!

All you need to do is this:

Then connect it to the control input of the volume control cell. This project was more complicated because it also had a GPIO mute button so I just am showing you what you need to do.

You can find the Arithmetic Shift cell here:

This should work much better for you.

Dave T

Volume-Control.JPG
Volume-Control.JPG
Shift-Location.JPG
Shift-Location.JPG
Evin Reply
Jan 26, 2019 00:00

Thank you very much for your help and I will test according to your opinion.