Thanks Jack for you intelligent questions...
On Wed, 23 Feb 2000 08:27:58 -0600, you wrote:
How much RAM do you have in the system? Did you rip the songs from CD
----- Original Message -----
From: Stuart Hall
convert them to mp3s?
128 mb ram.
That is more than enough
I ripped the songs from CD to Wav, then it converts them to mp3 - what quality, I have no idae.
So it takes 10 minutes to go from .wav to .mp3? ; that is good time. If you are getting a full CD from wav to mp3 in 10 minutes with average to great sound quality I would say that is a good thing. I wouldn't worry about it to much. You might want to check to make sure the mp3 converter is using both processers (sorry can't help you here, don't have an SMP machine), other than that it looks good. If you make sure that the mp3 converting software is running on both processers that isn't really much that you could do to increase performance (besides more hardware:) Lowering the sound quality will help it convert it faster, but most people don't like this option (I personally can't tell the differant between 64 and 256 just by listening to it). Another thing I ussually do is rip the cd to wav while I am at the console (so I can manually put in and take out CD from the drive), then at night when I go to bed have a cron or at job start and convert it from wav->mp3 at the middle of the night. As long as it doesn't take over 5 hours, it is fast enough for me, plus there is a nice hot steaming plate of pure mp3 goodness sitting on the computer when I wake up. You might want to try other mp3 converting software, benchmark a couple of them with the same data, same machines, same processes running and see what you come up with. I don't think you will cut your time to 30 seconds, but you might be able to knock a 1-2 off your 10 minutes if you find a "tweaked" out mp3 converter. Jack
If you say took a CD and rip it directly from CD to finish, then that is
a
fast machine. Even if you have 8 Pentium 800Mhz and 2 Gigs of RAM with 10,000RPM RAID cage, it will still take awhile if you have a 24X CD-ROM drive. The processer can only encode as fast as the CD dumps out the data.
40x IDE CD-Rom drive. Dual Pentium II 400mhz machine, but only a 5400 rpm hard-drive.
What speed is your CD-ROM? Ussually no matter how fast the CD-ROM is, it can keep up with a decent CPU/RAM configuration.
On a AMD K62-300Mhz W/176MB RAM and 40X SCSI CD-ROM drive it takes about 30-90 minutes to dump/convert an entire music CD from start to finish.
If I
"pre-dump" the music CD onto the Hard drive in .wav format it ussually takes 20-45 minutes for all the wav files to be converted over into mp3 in the highest sound quality (something like 256KBPS/16-bit IIRC).
Looking at the times above makes me feel a little better about the times that I got. Like I said, I'll do some more testing tonight and try and figure out the specifics (like what sound quality it is using).
Also if you convert into a low quality mp3 not only will you save disk space, but also it should take less time to convert, but the sound
quality
won't be as good. What speed are the CPUs in your system? 9 times out of 10 the CD-ROM drive in the system is ussually one of the biggest bottlenecks in a decent system, and there is no way I know of to "heighten" the performance of CD-ROM drives, they have to obey the laws of physics just like the rest of us. CD-ROM drives can only spin the CD-ROM so fast, even the new CD-ROM drives you see don't have the performance of a /really/ good hard drive.
I don't know of any Linux programs that will benchmark your CD-ROM drive.
Jack
Thanks! Stuart -- Stuart Hall Cheshire, Connecticut, USA Linux User# 141732
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