LinuxQuestions.org
Share your knowledge at the LQ Wiki.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware
User Name
Password
Linux - Hardware This forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

Notices


Reply
  Search this Thread
Old 09-07-2002, 11:50 PM   #1
jburford
Member
 
Registered: Sep 2002
Distribution: Mandrake 10, IPCOP 1.4, SME Server 6, EvilEntity
Posts: 106

Rep: Reputation: 15
Digital output using emu-tools


I am using a SoundblasterLive sound card, and Boston Acoustic digital speakers. Using emu10k, I get output to headphone on analog, and used emu-config -d to switch to digital output for the speakers.

I have no idea how to set this up so that the output is digital on boot up.

Can anyone help me here?

James
 
Old 09-08-2002, 12:02 AM   #2
pbharris
Member
 
Registered: Apr 2001
Location: chicago, IL
Distribution: debian, redhat
Posts: 280

Rep: Reputation: 30
hello,
can your put the neccessary commands in /etc/rc.local ?
 
Old 09-08-2002, 01:07 AM   #3
jburford
Member
 
Registered: Sep 2002
Distribution: Mandrake 10, IPCOP 1.4, SME Server 6, EvilEntity
Posts: 106

Original Poster
Rep: Reputation: 15
Yes - It works fine, and I should have thought of this. Thanks for your help.

LOVELY speakers - and rather easier to get soundcard and speakers to work than I expected. I thought the drivers might result on a poorer sound than under windows, but this is not at all true......Pink Floyd screaming at the world - all I have to worry about is the neighbours now!
James
 
Old 09-08-2002, 04:41 AM   #4
MasterC
LQ Guru
 
Registered: Mar 2002
Location: Salt Lake City, UT - USA
Distribution: Gentoo ; LFS ; Kubuntu
Posts: 12,612

Rep: Reputation: 68
jburford, think outside the box That's a joke btw, just a little bit of geek humor.

Anyway, the box isn't what is going to control the quality of your sound. This is a digital signal being sent to the digital speakers, and be decoded there, so sound quality shouldn't differ from OS to OS, or any other source. The DAC is at the destination, rather than the source, this helps to ensure that the final sound is not "filtered" or "boosted" or anything, but just purely as it was sent from the original source. One of the very good reasons to use Digital products.

Cool
 
Old 09-08-2002, 07:32 AM   #5
jburford
Member
 
Registered: Sep 2002
Distribution: Mandrake 10, IPCOP 1.4, SME Server 6, EvilEntity
Posts: 106

Original Poster
Rep: Reputation: 15
I hadn't ever considered what a driver does, beyond the obvious interface to hardware. Fore a sound card using digital speakers, does this mean there is no loss between digital file and speaker (other than cabling or interference issues)?


James
 
Old 09-08-2002, 07:37 AM   #6
MasterC
LQ Guru
 
Registered: Mar 2002
Location: Salt Lake City, UT - USA
Distribution: Gentoo ; LFS ; Kubuntu
Posts: 12,612

Rep: Reputation: 68
Well it would mean that a binary (1 and 0) signal is sent from the source media (Audio DVD or whatever) through the digital cable on the back of the DVDROM, to the soundcard, which if it's capable of, will carry that digital signal to the digital speakers, where resides a DAC (digital to analog converter) and thats where your sound is made from binary. IF you had say an analog audio cable traveling from your ROM to your soundcard, the signal would (probably) be converted at your soundcard from analog to digital (ADC) then sent to the speakers, resulting in less "quality" loss than if everything was analog.

Does that explain that better? And if anyone has a better example, or can explain it better, feel free.

Cool
 
  


Reply


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 Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
via82xx digital output justin_p Linux - Hardware 1 06-21-2005 05:13 AM
Enable digital output for digital speakers? alphster Linux - Hardware 5 12-26-2004 10:56 PM
emu tools vexer Linux - Software 1 08-14-2003 12:26 AM
emu-config digital outup, I'm lost HELP! Zeth_htp Linux - Newbie 1 04-03-2003 09:28 AM
emu-config digital outup, I'm lost HELP! Zeth_htp Linux - General 2 03-05-2003 10:54 AM

LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware

All times are GMT -5. The time now is 05:51 AM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration