CEMETECH
Leading The Way To The Future
Login [Register]
Username:
Password:
Autologin:

Don't have an account? Register now to chat, post, use our tools, and much more.
Latest Headlines
» HP Prime Multitouch Graphing Calculator: The Scoop
» More Details on the Casio fx-CP400 Touchscreen Calculator
» Editorial: On Choosing and Shelving Projects
» Presenting Graph3D v4.1, a Color 3D Grapher
Online Users
There are 114 users online: 3 members, 77 guests and 34 bots.
Members: juju2143, Spyro543.
Bots: VoilaBot (4), Magpie Crawler (3), VoilaBot (7), Googlebot (20).
RSS & Social Media
[t] Follow @cemetech
[t] 'Like' Cemetech
[RSS] News Headlines
[RSS] Latest Posts
SAX
You must log in to view the SAX chat widget
Speaker Controller Program (Help)
» >
    »
» View previous topic :: View next topic  
Author Message
LincolnB


Advanced Member


Joined: 07 Jul 2011
Posts: 199
Posted: 07 Jul 2012 05:20:23 pm    Post subject: Speaker Controller Program (Help)
I have some speakers that have an external headphones plug-in thingy. I'd like to be able to write a program (or download one, if such a program has already been written) that lets me switch from headphone output to speaker output - that is, I'd like to be able to hear sound out of the speakers, not out of the headphones, without having to unplug the headphones. However, I don't know how to go about doing this - I'm familiar with C and Java syntax, and can learn quickly anyways, so if anyone knows how to do this, please let me know!
_________________
-LincolnB

Back to top
Tari


Systems Integrator


Joined: 03 Jul 2006
Posts: 2107
Location: Always-winter, Michigan
Posted: 07 Jul 2012 06:13:32 pm    Post subject:
Can't say without more details. It's probably not possible (usual disclaimer: without hardware modification).
_________________


Ask questions the smart way · タリ
Back to top
benryves


Cemetech Expert


Joined: 12 Aug 2008
Posts: 1358
Location: London, United Kingdom
Posted: 07 Jul 2012 06:46:39 pm    Post subject:
In the unlikely event that the headphones and speakers appear as separate audio devices in the Sound control panel then plug in both, right-click the speakers device and select Set as Default Device. That way they will still be used if both speakers and headphones are plugged in (though no sound would come out of the headphones, naturally).

If they are not separate audio devices then it's probably something that's handled on the hardware level. You may be able to find some device-specific software to control this but I would find it unlikely.

May I enquire as to why you would want to do this? There may be a more practical solution, as it seems odd that the obvious answer ("unplug the headphones") is not suitable.
Back to top
LincolnB


Advanced Member


Joined: 07 Jul 2011
Posts: 199
Posted: 07 Jul 2012 06:51:31 pm    Post subject:
benryves wrote:
May I enquire as to why you would want to do this? There may be a more practical solution, as it seems odd that the obvious answer ("unplug the headphones") is not suitable.


Yeah, I don't know. Its more of a curiousity thing.
_________________
-LincolnB

Back to top
seana11


Super-Expert


Joined: 23 May 2011
Posts: 833
Location: Well, the sign says "You are here"...
Posted: 07 Jul 2012 08:26:40 pm    Post subject:
alsamixer

You can mute stuff separately from there.
_________________

Code:
-----BEGIN GEEK CODE BLOCK-----
GCS d- s+: a---@ C+++ UL++ P L+++ E- W++ N o? K? w--- O? M--
V- PS++(--) PE- Y+ PGP t 5? X(+) R tv-- b++(+++) DI+(++)
D(+) G e-(*)>++@ h! r!>+++ y?
------END GEEK CODE BLOCK------
decoded
Back to top
KermMartian


Site Admin


Joined: 14 Mar 2005
Posts: 55742
Location: Earth, Sol, Milky Way
Posted: 08 Jul 2012 10:17:58 am    Post subject:
seana11 wrote:
alsamixer

You can mute stuff separately from there.
As benryves said far more eloquently, if they're not separate devices, this isn't possible. For my fancy 5.1 Logitech speakers, the headphones and line-out are indeed two different devices, but for almost every set of stereo speakers, the headphone jack override is handled entirely in the hardware of the speaker, often a physical switch that you trigger when you plug in headphones. If you were clever, you could use a microcontroller as a USB device to control that switch, and write a little PC-side program to interface with said microcontroller.
_________________
Back to top
Display posts from previous:   
Register to Join the Conversation
Have your own thoughts to add to this or any other topic? Want to ask a question, offer a suggestion, share your own programs and projects, upload a file to the file archives, get help with calculator and computer programming, or simply chat with like-minded coders and tech and calculator enthusiasts via the site-wide AJAX SAX widget? Registration for a free Cemetech account only takes a minute.

» Go to Registration page
Speaker Controller Program (Help)
    »
» View previous topic :: View next topic  
Page 1 of 1 » All times are GMT - 5 Hours

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

© Copyright 2000-2013 Cemetech & Kerm Martian :: Page Execution Time: 0.026216 seconds.