|20th February 2014, 06:47 PM||#1|
Join Date: Nov 2007
How to link several BuffaloIII volume control ?
Hi there everyone,
So, I need your help with something that seems was not discussed before here as it's bit of a particular case to say the least.
I'm setting up a surround system in which each monitor (2 way SEOS12 + AE TD12M) has it's own stereo Buffalo III (se), each driver powered by an NCore amplifier. Loudspeaker crossovers will be managed by a dedicated computer with RME AES I/O cards (one AES pair per monitor) running IR's done with RePhase (so XO's + amplitude and phase correction).
I will offset each driver level and delay inside the host but I want to take the advantage and convenience of the high quality digital volume control built-in the ESS9018 DAC. If I recall correctly it's done over 32bit, the DSP being 48bit.
Now what I want to do as said in the title of this thread is to control volume on several Buffalo III at the same time.
To look at it another way, what I must do is control simultaneously and remotely several motorized pots, as volume control on the Buffalo DAC is done via a potmeter. (ADC connector)
What I've think about so far is controlling the motorized potentiometers by programming an Arduino microcontroller and buffer the output to the "x" number of pots I need to control. I don't think I need one microcontroller per motorpot, do I ? I also want to be able to program some reference listening levels so a microcontroller seems to be the only way to go.
Other thoughts : in place of a motorized potmeter which may be imprecise (but again, I will offset each driver level on the host computer) or has tracking inconsictancies over time, what do you think of using instead a resistor network like the Joshua Tree ? Such device has 128 steps (can it work with 0.5dB steps ?), can be remote controllable and has a mute function.
Not as easy as wiring a motor pot but what I want to do is far from easy !
I would really appreciate any help or ideas on that particular matter !
|20th February 2014, 08:54 PM||#2|
Join Date: May 2010
Just control the volume of the BIII(SE)s with a microcontroller. You just need a controller with multiple I2C busses to hook up all of the boards and set the volume by software.
|Thread Tools||Search this Thread|
|Thread||Thread Starter||Forum||Replies||Last Post|
|WTB: BuffaloIII||valleyman||Swap Meet||0||9th March 2013 10:31 PM|
|Volume control on DVD player remote. Lose resolution at low volume?||Circlotron||Digital Source||2||10th June 2011 08:20 PM|
|Replacing broken volume control with digital volume control||Gunawan W||Solid State||19||15th December 2010 11:46 AM|
|remote control motorised control for volume pot/knob||CharlesY||Parts||0||25th July 2005 12:12 PM|
|Link to a guy who have made some digital volume control tests||sonnya||Solid State||5||16th May 2002 12:12 AM|
|New To Site?||Need Help?|