Re: Audio cable requirement?

From: Charles Sullivan (cwsulliv_at_triad.rr.com)
Date: 05/28/04 

Date: Fri, 28 May 2004 11:12:32 GMT

On Fri, 28 May 2004 08:58:56 +0200, Måns Rullgård wrote:

> Charles Sullivan <cwsulliv@triad.rr.com> writes:
>
>> What determines whether an audio cable between
>> a CD reading device and onboard sound is required
>> in order to play audio CDs through the PC's sound
>> system?
>>
>> My old system has a DVD-ROM and Ensonic 1391 chip
>> onboard sound, and has been running RedHat versions
>> 6 through 9 over the years. It never needed an
>> audio cable to listen to audio CDs.
>>
>> My new system has a CD-RW and AC97 onboard sound,
>> and is running Fedora Core 2. MP3s on the hard
>> drive play fine, but I get no sound from Audio CDs
>> (except via earphones plugged into the front panel
>> jack on the CD-RW).
>>
>> Is it the CD reading device, the sound circuitry on the
>> mobo, or some configuration item in the OS that makes
>> the difference?
>
> Using the extra cable the CD drive does the digital to analog
> conversion and the sound is passed through the analog mixer of the
> sound card to the speakers. Without the cable the digital data has to
> be read from the CD, pass through the CPU, and be written to the
> digital input of the sound card. This obviously uses some CPU cycles
> and hogs the IDE bus, i.e. if the CD drive is sharing an IDE cable the
> other thing will perform sluggishly.
>
>> (The current problem is that the 18" audio cable
>> I have isn't long enough for the new tower case.)
>
> This is c.o.l.HARDWARE. Get out your soldering iron.

I can do that, but my original question remains unanswered.
Any ideas?

Regards,
Charles Sullivan

Relevant Pages

  • Re: Audio cable requirement?
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    (comp.os.linux.hardware)
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