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Re: [softrock40] Audio system

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  • ian mcphedran
    Thanks Shanon, I ll check that out Ian ________________________________ From: Shanon Herron To: softrock40@yahoogroups.com Sent:
    Message 1 of 5 , Sep 28, 2012
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      Thanks Shanon, I'll check that out

      From: Shanon Herron <ka8spw@...>
      To: softrock40@yahoogroups.com
      Sent: Thursday, 27 September 2012, 20:29
      Subject: Re: [softrock40] Audio system

      The new HiDef audio jacks are different than the jacks used on the old mother boards.  The old MB had just the three wires from the jack that connected to the audio Codec, left, right and common.  The new jacks also have a SPST switch that tells the codec that something is indeed plugged into the jack and to go ahead and send or receive audio to it.  The codec disables unused jacks to remove noise from the system audio.  Unterminated jacks suck noise from everywhere!  (The switch connection in the jacks does not make any contact to the left or right audio lines.)  Search for and download the like 30 page document on it.  I was working on a headset project and ran into this improvment in the jacks. 
      73, Shanon KA8SPW

      --- On Thu, 9/27/12, EB4APL <eb4apl@...> wrote:

      From: EB4APL <eb4apl@...>
      Subject: Re: [softrock40] Audio system
      To: softrock40@yahoogroups.com
      Date: Thursday, September 27, 2012, 2:54 PM


      I had exactly the same experience and yesterday I found that when I plug the cable in the MB sound system Line-in, the system lists the Microsoft Hi def sound and then it can be used.  Windows helping you in the wrong way!

      73 de Ignacio, EB4APL

      On 27/09/2012 11:22, ian mcphedran wrote:
      Hi all, when I used my old computer which had an XP operating system (before it died!) I had the PCI card for  m-audio Delta 44 installed and had the option, for other applications, of making the default audio system the inbuilt Soundmax sound system. Now, with a new computer with Windows 7 and the appropriate Drivers for that system installed I find that the PCI Delta44 card dominates the scene and I can't get at the Microsoft High definition sound sytem when I want to.
      Has anyone had the same experience and ovecome the difficulty?
      Ian GM3GTQ

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