Date: Thu, 27 Jan 2000 23:22:12 -0500 (EST) From: Andrew Gallatin <gallatin@cs.duke.edu> To: Nick Hibma <n_hibma@webweaving.org> Cc: FreeBSD CURRENT Mailing List <current@freebsd.org> Subject: Re: pcm - stutters Message-ID: <14481.5856.865621.444727@grasshopper.cs.duke.edu> In-Reply-To: <Pine.BSF.4.20.0001250032280.372-100000@localhost> References: <Pine.BSF.4.20.0001250032280.372-100000@localhost>
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Nick Hibma writes: > > The output of my ESS 1869 stutters whenever there is no new data fed to > it. For example pressing Ctrl-Z, or heavy disk usage (normally making > mpg123 jump). The stuttering is repetition of one short fragment of > about a quarter of a second, indefinitely > > Anything I can try with this machine current as of jan.24 02:00 GMT? I don't know much about sound, but it seems like pcm doesn't deal very gracefully with underflow. I have a very wimpy machine (133MHz P5 laptop): CPU: Pentium/P54C (133.64-MHz 586-class CPU) <...> sbc0: <ESS ES1688> at port 0x220-0x22f,0x388-0x38b,0x330-0x331 irq 5 drq 1 on isa0 pcm0: <SB DSP 3.01 (ESS mode)> on sbc0 I cannot play anything with amp -- the song starts to stutter after a second or two of play. I can use mgp123 which (I think) uses a more efficient decoder. Using mpg123, I see the same symptoms as you report. RealPlayerG2 seems to do better than amp. Especially if I tell it to "disable custom sampling rates." But still not as good as mpg123. Drew ------------------------------------------------------------------------------ Andrew Gallatin, Sr Systems Programmer http://www.cs.duke.edu/~gallatin Duke University Email: gallatin@cs.duke.edu Department of Computer Science Phone: (919) 660-6590 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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