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Date:      Fri, 11 Dec 1998 07:55:26 -1000
From:      richard@pegasus.com (Richard Foulk)
To:        PB <pb@wave.campus.luth.se>
Cc:        freebsd-hardware@FreeBSD.ORG
Subject:   Re: sane sound cards?
Message-ID:  <199812111755.HAA09539@pegasus.com>
In-Reply-To: PB <pb@wave.campus.luth.se> "Re: sane sound cards?" (Dec 11,  2:23pm)

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} >All of the cards I've checked into appear to fail because there is no data
} >buffer on the card.  At least not large enough to handle 44.1kHz stereo.
} >My guess is that somewhere between 16K and 64K bytes of buffer should be
} >sufficient.
} 
} Buffering is done with primary memory. Card only needs about 4K buffer.
} 

What do you mean by primary memory?  If it ain't on the card it's not
what I want.  If it's not on the sound card a slow device elsewhere on
the system will be able to starve the sound card.

} >I've recently been using a SoundBlaster AWE 64 Gold, with a 200Mhz
} >MMX Pentium running 3.0-RELEASE.  It works fine while lightly loaded.
} >But will start dropping audio data as the load climbs a bit.  A second
} >or two of on-board buffering should fix the problem completely, and make
} >it possible to play mp3s on slower systems.  (Dedicating a whole machine
} >to this function for want of a few K-bytes of buffer seems pretty silly.)
} >
} 
} I think your problem is IDE, I have seen this problem several times. As soon
} an IDE unit is used in the system. mp3 playing becomes a lot easier 
} disturbed task.
} 
} Advise .. use SCSI ONLY. Ofcourse it's a question of money too.. ;) 
} 
} If you really must use IDE, throw them to another computer which runs as a
} NFS server.

Who said anything about IDE?  Yikes!  I don't have any of that junk on
any of my systems.

My problem is insufficient buffering on the sound card.  Poor card design.
I'm almost certain that this is a problem endemic to most all current
systems.  Given a bit of load just about any configuration will fail to
deliver uninterrupted audio.  (At least for 200Mhz CPUs and below.)

A larger on-card buffer would make the problem go away.

So are there any good sound cards out there?


Thanks

Richard

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