Yet another Volume controlers and source selections

[FarmTech]

Originally Posted by studiostevus

Ok I'm quite confused now....

I was looking for a volume control and input selector solution for my dcb1. Looking essentially for highest sound quality, and had bad experience with light speed (channel imbalance). So started looking at relay/shunt based solutions...

- found the Amb lcduino and delta1/2 board, but they get quite expensive and difficult to source parts in my location (Amb don't offer a kit).
- then found vicol audio kit, which looks promising. However if I read this thread correctly, there are some minor and major issues with the software, which farmtech has tried to solve.
- now I read that farmtech is actually using a Chinese eBay volume controller (no input selection as far as I could tell)

So far i am a confuser if any of the above is a viable and stable option....

Hi,
vicol audio kit works OK no problems

I was wrong by me to add info for china board here in this topic
it have nothing to do with the vicol audio kit !!!
I know that some of the users here have this china board thats why I put link here to

I only made some "custom change" to vicol audio kit software as as extra funktion thats all


so no problem to get a vicol audio kit

[FarmTech]

I have PM Mod to remove the 2 post (#808 #809 )
about China board in this Thread
so no one gets confused about it again

[danzup]

Originally Posted by studiostevus

Ok I'm quite confused now....

I was looking for a volume control and input selector solution for my dcb1. Looking essentially for highest sound quality, and had bad experience with light speed (channel imbalance). So started looking at relay/shunt based solutions...

- found the Amb lcduino and delta1/2 board, but they get quite expensive and difficult to source parts in my location (Amb don't offer a kit).
- then found vicol audio kit, which looks promising. However if I read this thread correctly, there are some minor and major issues with the software, which farmtech has tried to solve.
- now I read that farmtech is actually using a Chinese eBay volume controller (no input selection as far as I could tell)

So far i am a confuser if any of the above is a viable and stable option....

As I am the man who write the vicol-audio firmware I am stated now that there is no problems with vicol-audio firmware !!!!
And I am a bit upset by this allegations. Even in the first version firmware was working perfectly but lacking in some features .
Now we are at 3.5 version of firmware , and on the 1.3 ...1.5 version Farmtech come with some ideas / improvement / features at that time ( 3..2 years ago ) and we exchange some message about some feature that Farmtech suggest and then implemented by him by adding a lot of code for a version which at that time added vu-meter RC5 programmable IR command and text changing name of input channel .
At that time it was for me some oppening eyes as I was not aware that some user want this. Later that year i was again rewriting all the code .
Now in the last firmware ( v3.5 ) there is very little from the collaboration between me and Farmtech (only the subroutine RC5 programming remain (which replace the Bascom native RC5 function ) !!!! THX FARMTECH again for that !!!! ) as everything in firmware is written by me again and again by the years.

As now Farmtech is a dear friend of mine , i thank him for all the job is doing on this thread for tailoring and writing software in Bascom for all users that need it .
(Now I do not have the time that I was sharing for users in those years )
Hope everything is clear now ?
Ok ?
As you see there is no other link / involvement from Farmtech to / with vicol-audio, nor hiding something about this.

[danzup]

As allways last firmware for vicol audio R2R controller can be downloaded from :
vicol audio : r-2r volume controller
There you will see the first comercial version ( from autumn 2008 ) v1.0 and last comercial version now 3.5 (today 14.02.2013).
Last version print volume as attenuation in dB from -63 dB to 0 dB.

[Junie]

I'm making a case for the controller i purchased from Tibi a year ago, here are some photos of my progress.









The circuit already tested and working fine, I will post more photos once it's done.

Junie

[danzup]

Originally Posted by Junie

I'm making a case for the controller i purchased from Tibi a year ago, here are some photos of my progress.
The circuit already tested and working fine, I will post more photos once it's done.

Junie

Very very nice piece of craftsmanship !
Congratulation .

[Junie]

now working on the front panel.







I will use a cd case (transparent cover) cut it to fit the window. I cannot find a shop selling a piece of acrylic, till then a lot of things to do. Will put more photos later.

[aditya]

Hi Kim, wanted to add SI4703 to the TDA7439 code you wrote for me, is it possible since my system is running on 3.3 volts i think we could do it hardware wise. no problems yet
need you to match the two codes. in to one.

[aditya]

and yes. tda7439 is on 5 volts but i do have P82B96 so i dont think we should have problem with level shifting i2c. and i remember you ahd also ordered those ic's last year right. along with the SI4703 board from sparkfun.

[FarmTech]

Originally Posted by aditya

and yes. tda7439 is on 5 volts but i do have P82B96 so i dont think we should have problem with level shifting i2c. and i remember you ahd also ordered those ic's last year right. along with the SI4703 board from sparkfun.

Hi,
Yes it run 3.3V via levelshift

http://www.sparkfun.com/datasheets/B...x-Eval-v11.pdf