Date: Sat, 28 Oct 2000 08:50:05 GMT From: "neil barnes" <[EMAIL PROTECTED]> Subject: Re: sound <everythings up here instead of replying directly to points below> Data transfer rates for MPEG audio are very low - that's why it was designed. You need from 64kbit/sec to 384kbit/sec (that's 8kByte to 48kByte/second) depending what your compression rate was. You can almost get this off a cassette tape so if your disc can't deliver - either due to *serious* defragmentation or lots of data errors/retries then you have major disc problems. Using my CT50 at 100MHz, on a 64k mono MPEG layer 2 file (all I happen to have on the system) it's averaging 40M instructions per second to decode using Sonique. Make the sonique not do the fancy graphics, and it drops below 20M ips. However, I have noticed that MS apps are seriously unfreindly in terms of hogging processor resources. For example, you can happily run W97 at the same time - provided you can cope with a half-second pause every time you press a key (provided you keep typing this doesn't happen - just if you type and stop to think about the next sentence). This happens on fast machines as well as slow ones - I think it's W97 saving undo information. But it's not nice! Writing this, I'm loading a 60M file into Cool Edit Pro and still playing without interruption... Neil >From: David Chien <[EMAIL PROTECTED]> >Reply-To: Libretto <[EMAIL PROTECTED]> >To: Libretto <[EMAIL PROTECTED]> >Subject: Re: sound >Date: Fri, 27 Oct 2000 11:15:10 -0700 > >Date: Fri, 27 Oct 2000 11:07:46 -0700 (PDT) >From: David Chien <[EMAIL PROTECTED]> >Subject: Re: sound > > > I have noticed that the Libretto 70 I have now sounds like it is parking > > the HD after every access. My Lib 20 does this but my last 70 did not, >and > > it played MP3's fine when set to 100% CPU - could this be the problem >with > > the frequent breaks in the playback, and if so, how do you adjust this? > > Well, it depends on if the entire MP3 song is loaded into memory or not. > If not, then frequent HD head parking (or banging/failure) will >interfere >with proper HD access. > > At the very least, I'd start with the HD and see if there is anything >wrong >with it. If it is an IBM, you can download diagnostics at >www.storage.ibm.com. > Maybe true with other brands. > > Then, I'd run a HD test program (maybe HDspeed?) to see what the average >read >transfer rates are like across the entire HD. That way, you'll know if the >averages are high enough to support mp3 playback or not, and if there's >anything wrong with the HD. I'd say at least 2-3MB/SEC sustained? (anyone >else >know of more exact values?) more is better. > > If the HD is working fine, then its back to software. At this time, I'd >download DOSAMP or any DOS mp3 player and try that out in pure DOS-only >mode >w/o windows running. DOSAMP must run perfectly or you've got some sort of >HW >problem going on - either bad HW or just too slow (which it shouldn't be as >everyone else can run MP3's just fine on similar systems). > > Maybe a full listing of the specs of your Libretto (RAM, HD size & >model, >etc.) as well as OS version, and all running software will help us dignose >from >afar. > >-- > >oh, and the usual. my computer -> properties -> turn all acceleration for >file >system to full >control panels -> display -> same thing with display acceleration features >->multimedia -> same thing with sound card. > >d =) > >===== >adorable toshiba libretto >The latest news and information for the Toshiba Libretto owner. >http://www.silverace.com/libretto/ > >__________________________________________________ >Do You Yahoo!? >Yahoo! Messenger - Talk while you surf! It's FREE. >http://im.yahoo.com/ > > > > >************************************************************** >http://libretto.basiclink.com - Libretto mailing list >http://libretto.basiclink.com/archive - Archives >http://www.picante.com/~gtaylor/portable/faq.html - FAQ > -------UNSUBSCRIBE------- >mailto:[EMAIL PROTECTED]?subject=cmd:unsubscribe > --------UNSUBSCRIBE DIGEST------ >Use above but add DIGEST to the subject line... >************************************************************** > _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. ************************************************************** http://libretto.basiclink.com - Libretto mailing list http://libretto.basiclink.com/archive - Archives http://www.picante.com/~gtaylor/portable/faq.html - FAQ -------UNSUBSCRIBE------- mailto:[EMAIL PROTECTED]?subject=cmd:unsubscribe --------UNSUBSCRIBE DIGEST------ Use above but add DIGEST to the subject line... **************************************************************
