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Old 14th February 2013, 01:46 AM   #811
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Quote:
Originally Posted by studiostevus View Post
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
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Last edited by FarmTech; 14th February 2013 at 01:57 AM.
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Old 14th February 2013, 05:35 AM   #812
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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
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Old 14th February 2013, 07:42 AM   #813
danzup is offline danzup  Romania
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Quote:
Originally Posted by studiostevus View Post
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.
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Last edited by danzup; 14th February 2013 at 08:11 AM.
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Old 14th February 2013, 06:38 PM   #814
danzup is offline danzup  Romania
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Default Regards last firmware

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.
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Old 15th February 2013, 11:08 AM   #815
Junie is offline Junie  Philippines
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Default A preamp case for VICOL AUDIO R2R controller

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

Click the image to open in full size.
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Click the image to open in full size.
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The circuit already tested and working fine, I will post more photos once it's done.

Junie
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Old 15th February 2013, 02:13 PM   #816
danzup is offline danzup  Romania
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Quote:
Originally Posted by Junie View Post
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 .
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Old 18th February 2013, 05:55 PM   #817
Junie is offline Junie  Philippines
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now working on the front panel.

Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.

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.
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Old 21st February 2013, 06:00 PM   #818
aditya is offline aditya  India
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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.
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Old 21st February 2013, 06:05 PM   #819
aditya is offline aditya  India
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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.
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Old 22nd February 2013, 12:02 AM   #820
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Quote:
Originally Posted by aditya View Post
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
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