Teralink X2 - Page 2 - diyAudio
Go Back   Home > Forums > Source & Line > PC Based

PC Based Computer music servers, crossovers, and equalization

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 18th May 2010, 05:08 PM   #11
anbello is offline anbello  Italy
diyAudio Member
 
anbello's Avatar
 
Join Date: Sep 2004
Location: Italy
Quote:
Originally Posted by diytoon View Post
I have a teralink X2 on my ubuntu netbook...works out of the box, but cannot get it to output 24b 96k

Thanks for the info

have you tried with aplay as i posted on #9?

Ciao
Andrea
  Reply With Quote
Old 18th May 2010, 07:45 PM   #12
diytoon is offline diytoon  Belgium
diyAudio Member
 
Join Date: Mar 2005
Location: belgium
I will read and check it the coming days...
even at 16 44.1 it plays nice...
  Reply With Quote
Old 19th May 2010, 08:10 AM   #13
anbello is offline anbello  Italy
diyAudio Member
 
anbello's Avatar
 
Join Date: Sep 2004
Location: Italy
Quote:
Originally Posted by diytoon View Post
I will read and check it the coming days...
even at 16 44.1 it plays nice...
Can i ask you which DAC do you have after the X2 and in which way is connected (coaxial, toslink or i2s)?

Ciao
Andrea
  Reply With Quote
Old 19th May 2010, 05:57 PM   #14
diytoon is offline diytoon  Belgium
diyAudio Member
 
Join Date: Mar 2005
Location: belgium
Quote:
Originally Posted by anbello View Post
Can i ask you which DAC do you have after the X2 and in which way is connected (coaxial, toslink or i2s)?

Ciao
Andrea
from the X2 it goes into a behringer SCR2496 and then to a Altmann DAC...
all optical.


but so far the behringer shows he receive 16 bits @ 44.1 Khz...

I am exploring ubuntu for the right player...so far I am pleased with the vlc player...

I need to find some time to do some more testing...

I have used a trends usb dac till now...was also very good.

Wanted to see if 24/96 native sound would be something...

kind regards,

Tony
  Reply With Quote
Old 20th May 2010, 08:29 AM   #15
anbello is offline anbello  Italy
diyAudio Member
 
anbello's Avatar
 
Join Date: Sep 2004
Location: Italy
Quote:
Originally Posted by diytoon View Post
from the X2 it goes into a behringer SCR2496 and then to a Altmann DAC...
all optical.


but so far the behringer shows he receive 16 bits @ 44.1 Khz...

I am exploring ubuntu for the right player...so far I am pleased with the vlc player...

I need to find some time to do some more testing...

I have used a trends usb dac till now...was also very good.

Wanted to see if 24/96 native sound would be something...

kind regards,

Tony
Thanks Tony really kind

i don't know your linux audio skill but if you are using pulseaudio you have everything resampled at a fixed samplerate / bit depth, so if you want to try 96/24 you have to configure your player to talk directly to alsa device.
The more direct way is to use 'aplay' from the prompt of a terminal window first to know the name of the alsa device:

andrea@supermicro:~# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 0: Intel ICH [Intel 82801DB-ICH4]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 4: Intel ICH - IEC958 [Intel 82801DB-ICH4 - IEC958]
Subdevices: 1/1
Subdevice #0: subdevice #0

in this example if i would like to play throu "Intel ICH - IEC958" i have to use card 0 and device 4 so the right command is:

andrea@supermicro:~# aplay -D hw:0,4 file.wav

or (if the first give you error about format)

andrea@supermicro:~# aplay -D plughw:0,4 file.wav

with file.wav a 96/24 wav file

Ciao Andrea
  Reply With Quote
Old 20th May 2010, 05:08 PM   #16
diytoon is offline diytoon  Belgium
diyAudio Member
 
Join Date: Mar 2005
Location: belgium
Quote:
Originally Posted by anbello View Post
Thanks Tony really kind

i don't know your linux audio skill but if you are using pulseaudio you have everything resampled at a fixed samplerate / bit depth, so if you want to try 96/24 you have to configure your player to talk directly to alsa device.
The more direct way is to use 'aplay' from the prompt of a terminal window first to know the name of the alsa device:

andrea@supermicro:~# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 0: Intel ICH [Intel 82801DB-ICH4]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 4: Intel ICH - IEC958 [Intel 82801DB-ICH4 - IEC958]
Subdevices: 1/1
Subdevice #0: subdevice #0

in this example if i would like to play throu "Intel ICH - IEC958" i have to use card 0 and device 4 so the right command is:

andrea@supermicro:~# aplay -D hw:0,4 file.wav

or (if the first give you error about format)

andrea@supermicro:~# aplay -D plughw:0,4 file.wav

with file.wav a 96/24 wav file

Ciao Andrea
this is whatI have:
mini@toon-minilaptop:~$ aplay -l
**** Lijst van PLAYBACK hardware-apparaten ****
kaart 0: Intel [HDA Intel], apparaat 0: STAC92xx Analog [STAC92xx Analog]
Sub-apparaten: 1/1
Sub-apparaat #0: subdevice #0

thanks for the tip!
  Reply With Quote
Old 20th May 2010, 07:37 PM   #17
anbello is offline anbello  Italy
diyAudio Member
 
anbello's Avatar
 
Join Date: Sep 2004
Location: Italy
Quote:
Originally Posted by diytoon View Post
this is whatI have:
mini@toon-minilaptop:~$ aplay -l
**** Lijst van PLAYBACK hardware-apparaten ****
kaart 0: Intel [HDA Intel], apparaat 0: STAC92xx Analog [STAC92xx Analog]
Sub-apparaten: 1/1
Sub-apparaat #0: subdevice #0

thanks for the tip!
Strange, i see only the sound card integrated with the motherboard.
Had you connected the teralink x2 before entering the 'aplay -l' command?

Ciao
Andrea
  Reply With Quote
Old 20th May 2010, 08:20 PM   #18
diytoon is offline diytoon  Belgium
diyAudio Member
 
Join Date: Mar 2005
Location: belgium
Quote:
Originally Posted by anbello View Post
Strange, i see only the sound card integrated with the motherboard.
Had you connected the teralink x2 before entering the 'aplay -l' command?

Ciao
Andrea
correct...X2 was not connected at that time...
saved your command and I will try it the coming days...
there is a long weekend ahead!
  Reply With Quote
Old 24th May 2010, 06:23 AM   #19
diyAudio Member
 
Join Date: May 2010
Quote:
Originally Posted by anbello View Post
Thanks Tony really kind

i don't know your linux audio skill but if you are using pulseaudio you have everything resampled at a fixed samplerate / bit depth, so if you want to try 96/24 you have to configure your player to talk directly to alsa device.
The more direct way is to use 'aplay' from the prompt of a terminal window first to know the name of the alsa device:
This is not 100 percent true.

In /etc/pulse/default.pa, you can configure default sample rates for each device, thusly.

add-autoload-sink output module-alsa-sink device=plughw:0,0 rate=48000 sink_name=output

But these rates can also be set on the fly. It may be that Gstreamer and other player back ends are not yet able to switch sample rates and bit depths to match files though.
  Reply With Quote
Old 30th July 2010, 03:26 AM   #20
mb is offline mb
diyAudio Member
 
Join Date: Dec 2002
Location: Singapore
Quote:
Originally Posted by elingeniero View Post
This is not 100 percent true.

In /etc/pulse/default.pa, you can configure default sample rates for each device, thusly.

add-autoload-sink output module-alsa-sink device=plughw:0,0 rate=48000 sink_name=output

But these rates can also be set on the fly. It may be that Gstreamer and other player back ends are not yet able to switch sample rates and bit depths to match files though.
I have had fairly good success with pulseuadio, sample rates and different output devices (hdmi audio, usb 96/24 converter). This may be useful to others trying the same:

1. Sample rate and word-depth can be set on a per-user basis, with a file .pulse/daemon.conf in your $HOME directory. Copy the daemon.conf from /etc/pulse and customize the one in your own directory.

2. Set the following according to your source and output device capabilities:

resample-method = speex-float-2 (or src-sinc-medium-quality if you have a fast CPU)
default-sample-format = s24le
default-sample-rate = 96000

3. If pulse is already running,
$ pulseaudio -k
will kill / restart pulse, using your new settings.

4. If source is 96/24, then playing with these settings should NOT need resampling. If playing CD or 48Khz audio, the audio will upsample with the resampler defined. Checking the CPU usage should confirm this.

Comment: on a fairly fast Dell laptop, only src-sinc-medium resampling is reliable (20% CPU usage). src-sinc-best stutters. Also my UHFnanoS dac (ESI Dr DAC Nano), seems to sound best using 48kHz or 96kz. 44.1kHz sounds harsh.

As manually editing daemon.conf is a hassle, I wrote a little python utility that allows me to change sample/word rate via the applet tray, as I would for network manager

After the pain of figuring out pulseaudio, I find it works rather well. I have an outstanding issue using Alsa (without pulse) on the USB dac... see my next post.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
FS: Antek Torroid 40V x2, 18V x2, 800VA dweekie Swap Meet 0 7th July 2008 12:24 PM
x2 preamp bpucekov Pass Labs 1 11th January 2006 09:05 PM
Pass pre X2 vs X2.5 Duck-Twacy Pass Labs 2 23rd January 2005 08:08 AM
And another review (X2.5) Duck-Twacy Pass Labs 0 23rd November 2003 05:42 PM
Pass X2 and BOZOZ bigswede Pass Labs 2 7th January 2002 10:20 PM


New To Site? Need Help?

All times are GMT. The time now is 01:00 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2