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Date:      Thu, 21 Jan 1999 12:10:57 -0800 (PST)
From:      Jeff Brown <jabrown@value.net>
To:        Richard Foulk <richard@pegasus.com>
Cc:        freebsd-hardware@FreeBSD.ORG
Subject:   Re: Sound stutters
Message-ID:  <Pine.BSF.3.96.990121115448.25200A-100000@pinky.local.lan>
In-Reply-To: <199901211836.IAA23746@pegasus.com>

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On Thu, 21 Jan 1999, Richard Foulk wrote:

> Does anyone have a system that plays WAV and MP3 music files flawlessly?

Yes.  Both of the machines I use as workstations have no problems playing
MP3's.

> Where you can play full stereo music (MP3 or WAV) for an hour while
> actively using netscape on the same machine with no skips or stutters
> in the audio.  Win95 can do it, but FreeBSD often cannot.  :-(

The play continuously, all day long.  I'm currently using "tk3play" to play the
MP3's, which in turn uses a modified "mpg123" executable.  The sound output
format is 44KHz, 16-bit stereo.  I notice no skipping.


> If you're fairly sure your machine passes this test could you please let
> me know what your configuration is:  CPU, sound card, disk controller,
> drive, amount of memory, FreeBSD version and sound driver, etc.

Box 1
-----------------------
PII-333, 64MB RAM

No-name ISA sound card, using the "luigi" driver of 2.2.6 vintage:
CSN 1 Vendor ID: YMH0030 [0x3000a865] Serial 0x80860001
mss_attach <Yamaha SA3>1 at 0x530 irq 5 dma 0:1 flags 0x11
pcm1 (CS423x/Yamaha <Yamaha SA3> sn 0x80860001) at 0x530 irq 5 drq 0 flags 0x11 
 id 29

Disk controller:
ahc0 <Adaptec 2940 Ultra SCSI host adapter> rev 0 int a irq 15 on pci0:15:0
ahc0: aic7880 Wide Channel, SCSI Id=7, 16 SCBs

Drive:
(ahc0:0:0): "WDIGTL WDE4360-1807A3 1.80" type 0 fixed SCSI 2
sd0(ahc0:0:0): Direct-Access 4095MB (8388314 512 byte sectors)
ahc0:A:5: refuses WIDE negotiation.  Using 8bit transfers

FreeBSD Version:
FreeBSD stimpy.XXXXX.XXX 2.2.6-RELEASE FreeBSD 2.2.6-RELEASE #0: Wed Jun 24
02:08:22 PDT 1998     jabrown@XXXXXX.XXXXX.XXX:/usr/src/sys/compile/STIMPY
i386


Box 2
-----------------------
P5-200, 64MB RAM

SB16 ISA sound card, using the "luigi" driver of 2.2.6 vintage:
Probing for PnP devices:
CSN 1 Vendor ID: CTL0070 [0x70008c0e] Serial 0xffffffff
pcm1 (SB16pnp <SB16 PnP> sn 0xffffffff) at 0x220 irq 5 drq 1 flags 0x15 id
  14

Disk controller: on-board IDE
wdc0 at 0x1f0-0x1f7 irq 14 flags 0x80ff80ff on isa

Drive:
wdc0: unit 0 (wd0): <QUANTUM FIREBALL ST6.4A>, 32-bit, multi-block-16
wd0: 6149MB (12594960 sectors), 13328 cyls, 15 heads, 63 S/T, 512 B/S

HOWEVER, the mp3 files are coming over nfsv2 (UDP) across a 10B2 ethernet from
a 386/40.  Gotta love progress.  :-)

FreeBSD Version:
FreeBSD brain.XXXXX.XXX 2.2.6-RELEASE FreeBSD 2.2.6-RELEASE #28: Sat Oct  3
15:43:20 PDT 1998     jabrown@XXXXX.XXXXX.XXX:/usr/src/sys/compile/BRAIN  i386


> Any and all responses will be most appreciated.

I regularly run Netscape Navigator 4.05 (the Linux version) and xemacs 20.4
long-term on both machines, as well as several (10 or so?) xterms.

I didn't know skipping was that big of a problem; I've never had trouble with
it.  I hope this info helps.


		-Jeff Brown


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