Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error

Login
Mute Switch for Multi-channel Buffalo-III
Options
View
Go to last post Go to first unread
Previous Topic Next Topic
greggtt  
#1 Posted : Saturday, March 21, 2015 9:01:37 PM(UTC)
greggtt

Rank: Member

Groups: Member
Joined: 2/26/2015(UTC)
Posts: 7
United States
Location: New York

Thanks: 2 times
I am starting a B-III + IVY3 (3 boards) 6-channel setup with volume potentiometer. Is there a simple way to activate a mute command to the B-III with a single or double pole switch that will mute all outputs? Only to silence the outputs, like for flipping a record. NOT for on/off thump protection.

I'm sure this is common request that may have been covered, but I couldn't find it, and would appreciate a pointer.

Thanks.
Back to top

Wanna join the discussion?! Login to your Twisted Pear Audio Support forum accountor Register a new forum account.
Back to top  
Brian Donegan  
#2 Posted : Monday, March 23, 2015 1:21:22 PM(UTC)
Brian Donegan

Rank: Administration

Groups: Administration, Customer
Joined: 10/24/2006(UTC)
Posts: 2,868
Location: Massachusetts, USA

Thanks: 2 times
Was thanked: 141 time(s) in 134 post(s)
The simplest way is to have your switch connect the volume control center pin to GND on all three DAC boards.
Back to top
WWW
greggtt  
#3 Posted : Tuesday, March 24, 2015 3:11:26 AM(UTC)
greggtt

Rank: Member

Groups: Member
Joined: 2/26/2015(UTC)
Posts: 7
United States
Location: New York

Thanks: 2 times
Brian - Thanks for the response.

I was thinking of doing just that, but worried that when the volume pot is in the max (CW) position, switching the wiper pin to ground will ALSO be grounding the 3.3V terminal of the ADC. That can't be ok, is it???

OR are you talking about using a SPDT switch, to switch the PB4 terminal off the pot wiper, then to GND to mute? I then worried about what happens during the transient disconnect if using a non-shorting switch.

Just to clarify, I'll be using a single B-III (in 6-ch mode) feeding the three IVY's, one volume pot. Already ordered.

Thanks,
Gregg
Back to top
greggtt  
#4 Posted : Monday, March 30, 2015 4:36:04 PM(UTC)
greggtt

Rank: Member

Groups: Member
Joined: 2/26/2015(UTC)
Posts: 7
United States
Location: New York

Thanks: 2 times
Originally Posted by: greggtt Go to Quoted Post
Brian - Thanks for the response.

I was thinking of doing just that, but worried that when the volume pot is in the max (CW) position, switching the wiper pin to ground will ALSO be grounding the 3.3V terminal of the ADC. That can't be ok, is it???

OR are you talking about using a SPDT switch, to switch the PB4 terminal off the pot wiper, then to GND to mute? I then worried about what happens during the transient disconnect if using a non-shorting switch.

Just to clarify, I'll be using a single B-III (in 6-ch mode) feeding the three IVY's, one volume pot. Already ordered.

Thanks,
Gregg


Brian - Sorry to bug, but can you confirm which (if either) of the above configurations is correct?

Many thanks,
Gregg
Back to top
Brian Donegan  
#5 Posted : Monday, March 30, 2015 5:16:56 PM(UTC)
Brian Donegan

Rank: Administration

Groups: Administration, Customer
Joined: 10/24/2006(UTC)
Posts: 2,868
Location: Massachusetts, USA

Thanks: 2 times
Was thanked: 141 time(s) in 134 post(s)
Sorry for the delay. Busy busy busy :)

You would want to use a SPDT switch as you outlined. the transition should be fast enough to not give you a full volume blast. There is some ramping in the volume code that would prevent it.
Back to top
WWW
thanks 1 user thanked Brian Donegan for this useful post.
greggtt on 3/31/2015(UTC)
Rss Feed  Atom Feed
Users browsing this topic
GuestUser (6)
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.

Youtube
Copyright © Twisted Pear Audio