Date: Mon, 17 Sep 2012 13:21:28 +0200 From: =?utf-8?Q?Robert_Sjon=C3=B8y?= <roberth.sjonoy@gmail.com> To: Ian Smith <smithi@nimnet.asn.au> Cc: "freebsd-multimedia@freebsd.org" <freebsd-multimedia@freebsd.org> Subject: Re: Sound system developement question Message-ID: <158ED432-5FE9-4FF9-A7EB-2009BC45F7F5@gmail.com> In-Reply-To: <20120917193515.C82816@sola.nimnet.asn.au> References: <4B739CF4-5D1D-4FE0-83FD-6987DCB40866@gmail.com> <CABzXLYNvsJm6QKPJga2FYFm_ssDW2cz9ZVrDfx5-DeMFW=0LAg@mail.gmail.com> <201209151453.41118.hselasky@c2i.net> <20120917193515.C82816@sola.nimnet.asn.au>
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This is irrelevent, we are talking about jitter with the bitperfect parameter enabled. Regards, Roberth Sjonøy On 17. sep. 2012, at 12:09, Ian Smith <smithi@nimnet.asn.au> wrote: > On Sat, 15 Sep 2012 14:53:41 +0200, Hans Petter Selasky wrote: > >> There are some sysctls which tell how oversampling is done: >> >> hw.snd.feeder_rate_quality > > Hans and all, > > That's good to know, so I checked mine (default): > > hw.snd.feeder_rate_quality: 1 > hw.snd.feeder_rate_quality: sample rate converter quality (0=low .. 4=high) > > and so set it to 4. I'm just listening to a ~192kbps VBR MP3 radio > stream, and hear no perceptible difference (probably not surprising), > nor does top show any apparent difference in cpu or interrupt rates: > > last pid: 2172; load averages: 0.16, 0.25, 0.21 up 12+19:41:12 19:54:06 > 150 processes: 2 running, 132 sleeping, 16 waiting > CPU: 14.0% user, 0.0% nice, 5.3% system, 7.8% interrupt, 72.9% idle > Mem: 292M Active, 243M Inact, 161M Wired, 25M Cache, 85M Buf, 17M Free > Swap: 2048M Total, 170M Used, 1877M Free, 8% Inuse > > PID USERNAME THR PRI NICE SIZE RES STATE TIME WCPU COMMAND > 11 root 1 171 ki31 0K 8K RUN 43.2H 90.97% idle > 1740 smithi 1 46 0 203M 143M select 509:57 3.56% Xorg > 1852 smithi 1 50 0 35756K 10544K select 310:36 2.88% gkrellm > 16115 smithi 5 59 0 298M 211M ucond 153:18 1.37% seamonkey-bin > 12 root 16 -60 - 0K 128K WAIT 96:09 1.37% intr > 1844 smithi 6 44 0 18812K 7064K select 230:56 0.10% xmms > > .. via xmms, on an 1133MHz P3-M running at 733MHz, 8.2-RELEASE i386. > > Need I reset the sound system to have that take effect? If so, how? > > cheers, Ian > _______________________________________________ > freebsd-multimedia@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-multimedia > To unsubscribe, send any mail to "freebsd-multimedia-unsubscribe@freebsd.org"
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