Re: [slim] Re: Backing up ripped music
If I look at the tracks in my shortest and longest albums I get: h:mm MinMax 164M 0:40 Enya/Watermark 28.4% 52.8% 561M 1:18 The Stone Roses/The Very Best Of 63.6% 76.1% (My previously reported largest single album turned out to be a double...) I've also got an audio book (simple speech) compressed, and this is typically ~20%, but down as low as 16.5% in places. The bottom line is that the compression ratio you get is down to the complexity of the music. Looking at my entire collection (509 "albums", 6350 tracks) I have 20 days, 15 hrs, 18 mins and 33 secs of music. This works out at 299,970MB of uncompressed data. The flac data takes up 185,871MB, which shows an average of 62%, which isn't bad. On Sun, 2005-04-10 at 16:39 -0700, radish wrote: > Well, yes, most of my albums are "full", i.e. 72 mins, which will make > them larger than 40-45 mins pop albums. But, I'm still not seeing the > ratios. For example, I took a random selection of 4 tracks from an > album, and compared them at different settings: > > 4 tracks, total play time 16:06 > > WAV: 162mb > FLAC (0): 129mb (1.26:1) > FLAC (4): 122mb (1.32:1) > FLAC (8): 117mb (1.38:1) > > [FYI - I use 4 as my default setting) > > The best I could get for these settings is a ratio of approx 1.4:1, no > where near the touted 2:1 (50%). Looking over my collection, this is > fairly typical. I'm not suggesting other people are lying, and there's > nothing wrong with my compression settings, so that's why I'm assuming > that it's the style of music. > > -- "The biggest problem encountered while trying to design a system that was completely foolproof, was, that people tended to underestimate the ingenuity of complete fools." (Douglas Adams) ___ Discuss mailing list Discuss@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/discuss
Re: [slim] Re: Backing up ripped music
Well for single albums, mine seem to vary between pretty small and very large: 164M/media2/Flac/Enya/Watermark to 689M/media2/Flac/Fish/Mixed Company (This CD is so long that I can't rip the last track, and I've tried 4 different DVD drives on Linux and Windows... It's also a live recorded CD, so is probably not as "clean" as a studio CD, I guess this could affect the compression ratio.) Overall the largest "album" is: 1.5G/media2/Flac/Yes/Keys to Ascension (which is a 4-disc set - I rip and tag multi-disc albums as if they were one long album). About 380 of 509 albums are less than 400MB, and on a first analysis they seem to be fairly evenly distributed through the range. On Sun, 2005-04-10 at 09:01 -0700, radish wrote: > > I keep meaning to compile some statistics on the average size of my > > compressed albums, but a quick scan shows they tend to be between > > 200-400MB > > Wow. Mine average 500, I must have some kind of broken FLAC codec ;) > More seriously, I think it must have to do with the type of music. I > always see people saying that you get decent compression with FLAC, and > that albums come in at 300MB or so, but the majority of mine seem to be > 500 or higher. I have a number around 600 - seems like very little > compression going on there. It's my personal theory (backed up by very > little evidence) that it depends on the level of dynamics within the > music. > > -- "The biggest problem encountered while trying to design a system that was completely foolproof, was, that people tended to underestimate the ingenuity of complete fools." (Douglas Adams) ___ Discuss mailing list Discuss@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/discuss
Re: [slim] Re: Backing up ripped music
I have a lot of CDs that were originally released on vinyl. That limits them, in most cases, to 25-40 minutes in length. Considering the rule-of-thumb of a bit over 10 MB / minute of audio, uncompressed and approx 50% compression with FLAC, I generally get 200 - 250 MB (in FLAC) for a 30 minute album, er... CD. Newer releases *generally* have longer running times and will, of course, take more MBs. So I'd guess. radish, that most of your CDs fall in the "newer release" category. Of course, you can trade processing time and get a bit better compression, if you set up your FLAC program that way, but even the highest compression settings aren't going to get you much over 50% (consistently) with FLAC. Robert radish wrote: I keep meaning to compile some statistics on the average size of my compressed albums, but a quick scan shows they tend to be between 200-400MB Wow. Mine average 500, I must have some kind of broken FLAC codec ;) More seriously, I think it must have to do with the type of music. I always see people saying that you get decent compression with FLAC, and that albums come in at 300MB or so, but the majority of mine seem to be 500 or higher. I have a number around 600 - seems like very little compression going on there. It's my personal theory (backed up by very little evidence) that it depends on the level of dynamics within the music. ___ Discuss mailing list Discuss@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/discuss
Re: [slim] Re: Backing up ripped music
From: "radish" <[EMAIL PROTECTED]> I keep meaning to compile some statistics on the average size of my compressed albums, but a quick scan shows they tend to be between 200-400MB Wow. Mine average 500, I must have some kind of broken FLAC codec ;) Mine are much shorter as well. Here's a short sample: 225356 Billy Joel/The Stranger 297292 Billy Joel/Storm Front 621032 Billy Joel/Greatest Hits 1143716 Billy Joel/ 268332 Bruce Springsteen/Darkness Of The Edge Of Town 229276 Bruce Springsteen/Greetings from Asbury Park, N.J 304836 Bruce Springsteen/Born In The U.S.A 506368 Bruce Springsteen/The River 286272 Bruce Springsteen/The Wild, The Innocent & The E Street Shuffle 1367888 Bruce Springsteen/Live 1975-85 215872 Bruce Springsteen/Nebraska 282456 Bruce Springsteen/Tunnel Of Love 231556 Bruce Springsteen/Born to Run 3692948 Bruce Springsteen/ I use maximum compression when I rip the albums. Note that Billy Joel/Greatest Hits is 2 disks, Bruce Springsteen/The River is 2 disks, and Bruce Springsteen/Live is 3 disks. So, on average, I seem to do much better than your average. Check your compression settings. -- Jeff ___ Discuss mailing list Discuss@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/discuss
RE: [slim] Re: Backing up ripped music
>Shoot, most of my 5.25" disks that had sat in >> a box for 10 years worked the last time I went through them >> before their ultimate disposal. I think that magnetic media--although it's sensitive to fields--is notably better for long-term archiving. I believe CDs are estimated at about 10 years where magnetic is like 20. CD media is metal that will rust where rust (on disk) won't rust. I think it's a pretty interesting topic actually. Thanks, Phillip ___ Discuss mailing list Discuss@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/discuss
Re: [slim] Re: Backing up ripped music
I used this in EAC (compression options -> External Compression -> Additional command line options): -6 --replay-gain -V -T "artist=%a" -T "title=%t" -T "album=%g" -T "date=%y" -T "tracknumber=%n" -T "genre=%m" -T "comment=EAC 0.95prebeta5 / FLAC 1.1.0" %s And as an example these are the sizes for Steely Dan (everybody should have these :-) Can't Buy A Thrill (1972) 242Mb Countdown To Ecstasy (1973) 238Mb Pretzel Logic (1974) 199Mb Katy Lied (1975) 206Mb The Royal Scam (1976) 245Mb Aja (1977) 236Mb Gaucho (1980) 216Mb Two Against Nature (2000) 331Mb Everything Must Go (2003) 257Mb ==> as WAV it takes 466Mb jan ___ Discuss mailing list Discuss@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/discuss
RE: [slim] Re: Backing up ripped music
DVDs are not exactly archival There are lots of arguments on that. Frankly, I wish MO had caught on; that's probably the most "archival" there is. Even chiseling something into a rock won't last forever. Unfortunately, migrating data between old and new media isn't going to go away, though it would be nice. I figure my DVD-Rs, properly stored, will last long enough to be transferred to whatever replaces them (Blu-Ray? DVD-HD? Punchcards?). Shoot, most of my 5.25" disks that had sat in a box for 10 years worked the last time I went through them before their ultimate disposal. Kevin -- Kevin O. Lepard [EMAIL PROTECTED] Happiness is being 100% Microsoft free. ___ Discuss mailing list Discuss@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/discuss
RE: [slim] Re: Backing up ripped music
DVDs are not exactly archival. Naturally, hard drives have the issue that your OS may not support the HD in the future. I often feel like a dung beetle copying all my stuff from computer to computer. Anyway, I just use HDs. Thanks, Phillip ___ Discuss mailing list Discuss@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/discuss
Re: [slim] Re: Backing up ripped music
Oh, around 10 to 20 - Nice and accurate ;=) max.spicer wrote: How many FLAC albums do you get on a DVD on average? I keep meaning to compile some statistics on the average size of my compressed albums, but a quick scan shows they tend to be between 200-400MB. Nice and accurate! ;-) ___ Discuss mailing list Discuss@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/discuss
