RPi for NOOBS!

pre65 · Post by **pre65** » Sun Jan 26, 2014 10:36 am

The TDA1543 was not a top range chip.

It seems stacking loads of them was one way to improve the quality.

My Ebay dac (like yours) is much better.

Post by **Nick** » Sun Jan 26, 2014 10:45 am

The TDA1543 was not a top range chip.

No, but many do like the sound or the r2r dac instead of the later designs.

Here is a £7k DAC that uses them

http://www.6moons.com/audioreviews/cad/1.html

I have a board somewhere with a stack of them on you can try if you like Paul.

Ray P · Post by **Ray P** » Sun Jan 26, 2014 11:03 am

My RAKK dac can accept i2s so is ripe for an experiment. I already tap the i2s signals from a Juli@ sound card and use a proprietary solution to send it to the dac, more info here if anyone is interested;

http://www.raleighaudio.com/I2S%20Interface%20v3.1.pdf

I think I'll buy a HiFiBerry digi to get spdif out as a starter then hook up my i2s sender card and see what happens. If that works it would seem reasonable to think that hooking up the RPi i2s output directly to the dac board should also work.

Ray

Ray P · Post by **Ray P** » Sun Jan 26, 2014 11:08 am

I'm also thinking that one of Andrew's regulator boards might be worth trying as a RPi power supply.

Ray

Paul Barker · Post by **Paul Barker** » Sun Jan 26, 2014 1:27 pm

Yes Phil my AK4396 was good while it worked.

Ray I'll see how you get on.

Nick yes please can I borrow your dac?

Post by **Nick** » Sun Jan 26, 2014 1:35 pm

Paul Barker wrote:Nick yes please can I borrow your dac?

Will put it in the post, will check what power supply it needs.

Paul Barker · Post by **Paul Barker** » Sun Jan 26, 2014 1:45 pm

Thank you Nick.

Ray P · Post by **Ray P** » Thu Jan 30, 2014 9:14 pm

Some links that might be useful;

http://www.electronicsweekly.com/news/d ... i-2013-07/

http://raspberrypi.stackexchange.com/qu ... dio-output

http://elinux.org/RPi_Hardware

Ray

Paul Barker · Post by **Paul Barker** » Fri Jan 31, 2014 8:43 am

Thank you Ray I have waded through all of the links and the various relevant links of those links.

Some of the links explained terms I am beginning to learn.

It seems to me that if I have read things right that we are on the cusp of software announcements which quite easily (read cheaply and without disappointing not to mention costly failures) turn the P5 connector (which I don't have; just another in the serial bus of obstacles to i2s connectivity for me) into an i2s out which it doesn't appear to become without software.

I think that I still have to sit and wait while all these clever people bring out more software, and I think I have to buy a new rPi to which I can more easily draw out the p5 information, which I learned I could do from my board, but the instructions I found I didn't comprehend as much as 1% of. Had I been tasked to instruct someone how to connect a valve base, which is something similar I could have communicated it so that any fool could do it. I am learning that in this new geek environment I am trying to learn from the surface contact between the geek and the normal person in society isn't in the same room. Though I appreciate the attempts to bridge the gulf it is still the size of the Grand Canyon. there is so much assumed knowledge creating a serial buss of divisions accumulating to hand off the outsider.

I shall continue to watch and wait as the plot unfolds.

Paul Barker · Post by **Paul Barker** » Fri Jan 31, 2014 8:47 am

for now I shall more than likely do that horrific thing of taking a usb to spdif converter to it. This in the hope that Volumio is written to work with USB which I think it may be. Or else I am searching for other software which I believe is out there waiting to be flashed to my micro SD.

Horrific though the usb out is for audio (apparently).

Paul Barker · Post by **Paul Barker** » Fri Feb 07, 2014 9:05 pm

I must repeat just how pleased I am with the rPi on Volumio. Not touched it for about a week. Bought some new headphones, thought I'd see how they sound on it. Plug it into the Ethernet, power and headphones, and it starts playing the last webradio station I had on a week ago, without me even going to a controller like the volumio website or the sound@home app. simply on it's own it plays music by default. To boot it sounds a lot better than the Android phone music player with same headphones.

Ray P · Post by **Ray P** » Sat Feb 08, 2014 9:51 am

Paul Barker wrote:I must repeat just how pleased I am with the rPi on Volumio. Not touched it for about a week. Bought some new headphones, thought I'd see how they sound on it. Plug it into the Ethernet, power and headphones, and it starts playing the last webradio station I had on a week ago, without me even going to a controller like the volumio website or the sound@home app. simply on it's own it plays music by default. To boot it sounds a lot better than the Android phone music player with same headphones.

Think how nice it could be with a really good output stage then Paul.

Ray

Paul Barker · Post by **Paul Barker** » Sat Feb 08, 2014 4:51 pm

It'll come in the fullness of time.

cressy · Post by **cressy** » Mon Feb 24, 2014 10:50 pm

saw these little cases and thought they were cool
http://www.ebay.co.uk/itm/Pibow-Timber- ... 1e845cdbe8

Ray P · Post by **Ray P** » Tue Feb 25, 2014 5:37 am

cressy wrote:saw these little cases and thought they were cool
http://www.ebay.co.uk/itm/Pibow-Timber- ... 1e845cdbe8

They don't have any room for sub-boards, sockets etc. If you want a wooden box for a pi this one looked a lot nicer;

http://www.ebay.co.uk/itm/251442254115? ... 1423.l2648

unfortunately it's not currently listed but might be worth a message to the seller.

I'm building my rpi/hifiberry into one of these little boxes;

http://www.ebay.com/itm/Aluminum-Projec ... 25829f3cb4

relocating the sockets I need to the back panel next to the Ethernet and usb. I'll post a picture or two in due course.

Ray

audio-talk

RPi for NOOBS!

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