[Crawling Chaos]

I got a second RPi, now the A+. The next step will be to buy/bild it a i2s DAC. At the present it´s connected to a mini-system via its analog out.
 
Crawling Chaos

 

[silvrr]

I tried volumio awhile back but ran into in issue with getting my Modi 2 to output anything but horribly distorted noise.  (among other things like getting my usb to mount, ect.)
 
I saw that volumio had updated a few versions and thought I would try again. Downloaded the ISO and for the life of me couldn't get it to unzip.  Tried that a few times and gave up on it.  
 
I saw this thread awhile back and remembered RuneAudio.  Download the iso, unzip, load to the SD, boot up and music is playing shortly there after!  Wifi setup was simple and it just works. There was a bit of noise at first but after turning off the software volume control I don't think the background noise is any worse than it was with my desktop or laptop. (barely audible on very quiet passages)
 
Raspberry PI 2 and the Modi 2 apparently can play together with runeaudio 0.3 it seems.  Powering it all off a small powered USB hub with all the music loaded on a USB drive.  
 
Going to try to get Mpod on my iphone working tonight and find a way to box it up nicely so there is only a USB and power cable coming out.  

 

[Crawling Chaos]

I had the same issue with Raspberry PI 2 and Modi, but I already posted here that there is a solution for this problem. Here we go:
 
Edit the file /boot/cmdtime.txt and add the folowing command at the end of it: "dwc_otg.fiq_fsm_enable=0"; then reboot. I found this solution on github.
 
Crawling Chaos

 

[silvrr]

I had the same issue with Raspberry PI 2 and Modi, but I already posted here that there is a solution for this problem. Here we go:

Edit the file /boot/cmdtime.txt and add the folowing command at the end of it: "dwc_otg.fiq_fsm_enable=0"; then reboot. I found this solution on github.

Crawling Chaos

What does this do?

 

[silvrr]

Has anyone tried on of the add on board Dacs like the hifi berry? If it would be a equivalent replacement for my modi it would be nice to have a tiny little player and DAC in one.

 

[Crawling Chaos]

What does this do?

I don´t realy know what exactly this kernel module does. But in the original source of this workaround, the github user P33M wrote:
 
"The fiq_fsm handler is incorrectly performing transfers to high-speed isoc OUT endpoints. It appears that it's blindly transferring data every microframe instead of strided per 2^(n-1) microframes. With Isoc IN endpoints, you can request data every microframe and the device just responds as-and-when. This is why nrpacks=1 worked - one isochronous transfer per URB which hid the bug. Without FIQ support, microframe jitter will cause variations in timing of the OUT packets which will probably cause sample rate skew."
 
Since I don´t know much of hardware, programing etc, it seems gibberish to me.
 
Crawling Chaos

 

[Crawling Chaos]

Has anyone tried on of the add on board Dacs like the hifi berry? If it would be a equivalent replacement for my modi it would be nice to have a tiny little player and DAC in one.

All these on board DACs uses i2s as interfacce standard to transfer digital data from the RPi to the DAC chip. Rigth now, I am in the process of building me a i2s DAC with a TDA1543. I chose this particular DAC due its embedded components. This chip is almost plug-and-play. I designed a 60x60mm PCB with A TDA1543, a voltage regulator, seven capacitors, twelve resistors, a diode, a LED and a rectifiing bridge that will plug into the i2s GPIO pins of the Raspberry. If I got this to work, I'll try later with a better DAC chip.
 
Crawling Chaos

 

[silvrr]

Picked up a hifi berry, figured it was cheap enough to just try it out.  Was pretty much plug and play, two changes to the boot/config file in rune to get it rolling.  
 
Initial impressions are that I don't hear any drastic differences in sound quality compared to my modi.  Did a few changes back and forth but there is a 10-20 second delay in getting the setting changed in Rune audio and the RCA cables changed from the modi to the hifiberry board.  
 
I will say that it is nice having a lot less wiring running around,  my modi wouldn't run off the Pi so I needed a USB hub which meant more cables running around.  

 

[silvrr]

 
I will say that it is nice having a lot less wiring running around,  my modi wouldn't run off the Pi so I needed a USB hub which meant more cables running around.  

 
So I think Im going to stick with the modi, the hifiberry is pretty good but I just enjoy the modi more.  
 
Also, enabling USB over voltage lets the modi run straight off the Pi!  Listened for quite awhile last night with a number of bit rates and no issues or drop outs.  Having a setup I can bring to any room in the house and to whatever comfy chair I want is really nice.  
 

 

[gus6464]

Can anyone recommend a linear power supply that is pretty much plug and play that I can stick in a case to power a rpi2 with volumio and also power a nano idsd with split data and power? If not, I was just going to go with a 5V/5A meanwell medical grade SMPS unit.

 

[silvrr]

Can anyone recommend a linear power supply that is pretty much plug and play that I can stick in a case to power a rpi2 with volumio and also power a nano idsd with split data and power? If not, I was just going to go with a 5V/5A meanwell medical grade SMPS unit.

Quite delayed but... Most of the linear supply options I have seen that are plug and play are quite expensive for what they are.  
 
If you want a little DIY look at this build from part time audiophile.  Scroll down in the comments and there are links for each item.  I think you could do it without soldering if you crimped the IEC socket connections and the rest have screw terminals.  http://parttimeaudiophile.com/2015/05/23/review-raspberry-pi-2-as-music-streamer/
 
 
On another note, my rune crashed the other day, not sure if I unplugged it before it shut down or what happened but no more boot.  Figured I would try out Moode.  It was a no go with the Schiit Modi 2, it only output a garbled static mess even though it says its supported.  Tried enabling the c-media fix and some other tricks but to no avail.  Re-installed rune and listened happily for the rest of the night.  

 

[dwayniac]

I recently experimented with replacing my 8yo laptop with a RPi2 as the source player for the sake of using the RPi2 for something. For some reason the RPi2 made the music sound better to me despite using the same DAC and amp. I think I will stick to it since I like it.

 

[silvrr]

I recently experimented with replacing my 8yo laptop with a RPi2 as the source player for the sake of using the RPi2 for something. For some reason the RPi2 made the music sound better to me despite using the same DAC and amp. I think I will stick to it since I like it.

I found the same, although I chalked it up to being able to bring my setup to a comfy chair in the house and kick back.  I did notice something though when I made the switch, not sure what it was but I was enjoying the music more, not sure if it was change in venue or a change in sound due to the Pi.

 

[yay101]

Specialised os based on Linux is always going to be better than any desktop OS for playback, even with its limited hardware. It has to do with magical words like jitter and I/ops. Almost all the dedicated and expensive playback devices run Linux, you just don't get to see it.

 

[silvrr]

Put together a post with a how to on my Pi setup,would appreciate any feedback anyone has.  
 
http://www.head-fi.org/t/795895/a-70-bit-perfect-audio-player