Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error

Login


Options
View
Go to last post Go to first unread
nyc_paramedic  
#1 Posted : Wednesday, April 14, 2010 3:33:52 PM(UTC)
nyc_paramedic

Rank: Member

Groups: Member
Joined: 4/14/2010(UTC)
Posts: 2
Location: NYC

I'm fairly new to the world of Twisted Pear DIY, so forgive me if what I am about to ask sounds a bit wacky...

I've been interested in using some type of Twisted Pear DAC in the future but also want to integrate it with my Linux computer setup. Currently I use a custom designed Linux music server feeding a USB DAC. Simply, it's a PC Engines Alix (http://www.pcengines.ch/alix3d2.htm) that is loaded with Debian based Voyage Linux OS (http://linux.voyage.hk/) for embedded boards. The software is Music Player Daemon (http://mpd.wikia.com/wiki/Music_Player_Daemon_Wiki), that grabs FLAC files from a remote NFS machine. Board runs silent and using only 3 watts of power; entire software stack runs in RAM, which boots off a small 512MB compact flash card. MPD output to USB to feed a USB DAC. So...

I see that some some Twisted Pear DAC's accept I2S as an input stream. Can one use , or is anyone using a similar single board computer with I2S audio out to feed a Twisted Pear DAC? I have been investigating some inxepensive boards that might do the trick:

The Technologic System TS-7400 has Debian pre-installed, boots in a couple of seonds, and has open specs. Link: http://www.embeddedarm.c...tail.php?product=TS-7400
Datasheet: http://www.embeddedarm.c...on/ts-7400-datasheet.pdf

There are also SoM (System on Modules) that have I2S out: http://www.emacinc.com/som/som536em.htm You can buy generic carried boards or have 'em custom made.

Questions? Comments? Suggestions?



Edited by user Wednesday, April 14, 2010 3:39:06 PM(UTC)  | Reason: Not specified

Russ White  
#2 Posted : Wednesday, April 14, 2010 3:39:57 PM(UTC)
Russ White

Rank: Administration

Groups: Administration, Customer
Joined: 10/24/2006(UTC)
Posts: 3,979
Location: Nashville, TN

Thanks: 25 times
Was thanked: 89 time(s) in 83 post(s)
I have used the Beagle board to play PCM directly to my DACs via I2S. :) It certainly a viable solution.

Cheers
Russ
nyc_paramedic  
#3 Posted : Wednesday, April 14, 2010 3:56:53 PM(UTC)
nyc_paramedic

Rank: Member

Groups: Member
Joined: 4/14/2010(UTC)
Posts: 2
Location: NYC

Russ White wrote:
I have used the Beagle board to play PCM directly to my DACs via I2S. :) It certainly a viable solution.


May I ask what software you used for the player? Also, is it simply a matter of using a jumper from the Beagleboard to the DAC?

The Beaglboard is similar to the Technologic Boards I'm researching.

Edited by user Wednesday, April 14, 2010 3:58:20 PM(UTC)  | Reason: Not specified

Russ White  
#4 Posted : Wednesday, April 14, 2010 4:01:10 PM(UTC)
Russ White

Rank: Administration

Groups: Administration, Customer
Joined: 10/24/2006(UTC)
Posts: 3,979
Location: Nashville, TN

Thanks: 25 times
Was thanked: 89 time(s) in 83 post(s)
I basically just hacked the source code which is used for the Beagle's on-board CODEC. There was not much to it really.

The TS-7400 looks pretty cool too.
Brian Donegan  
#5 Posted : Wednesday, April 14, 2010 4:18:58 PM(UTC)
Brian Donegan

Rank: Administration

Groups: Administration, Customer
Joined: 10/24/2006(UTC)
Posts: 2,868
Location: Massachusetts, USA

Thanks: 2 times
Was thanked: 141 time(s) in 134 post(s)
Quote:
I see that some some Twisted Pear DAC's accept I2S as an input stream


All of them do, actually.
Graperain  
#6 Posted : Monday, November 21, 2016 9:02:18 AM(UTC)
Graperain

Rank: Member

Groups: Member
Joined: 10/10/2016(UTC)
Posts: 2
China
Location: Shenzhen

I using a similar single board computer with I2S audio out to feed a Twisted Pear DAC, and I have used the Beagle board to play PCM directly to my DACs via I2S. :) It certainly a viable solution.
There are also SoM (System on Modules) that have I2S out.
gwikse  
#7 Posted : Friday, December 2, 2016 12:08:25 PM(UTC)
gwikse

Rank: Member

Groups: Member
Joined: 1/19/2011(UTC)
Posts: 332
Location: Oslo, Norway

Thanks: 14 times
Was thanked: 17 time(s) in 17 post(s)
Been using raspberry pi1&2 (i2s and hifiberry digi), odroid c2 (i2s and usb) and cubox-i (optical and usb) with my tpa dac`s for a while now. I am hoping that someone will take it one step further at some point and make alsa control the volume and inputs so that I can get rid of the dedicated arduino controller and the ir-remote.

Atm I am using Roon music playback software, and it is capable of controlling the volume via alsa from the app (on phone, tablet, pc etc).

Now that roon will get support for sonos (and chromecast is also on the roadmap); multiroom music playback using the same input method in all the rooms should be possible.

Edited by user Friday, December 2, 2016 8:40:51 PM(UTC)  | Reason: Not specified

Rss Feed  Atom Feed
Users browsing this topic
GuestUser (3)
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.