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MikeEnRegalia
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Joined: April 22 2005
Location: Sweden
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Posted: March 22 2007 at 18:06 |
^ distortion can sound quite pleasing too ... it can be harmonic (as in good tube amps) or completely awful (clipping transistors).
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Failcore
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Joined: October 27 2006
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Points: 4625
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Posted: March 22 2007 at 17:20 |
The simplest wave form are the most pleasing to the ear aren't they? OF course here at PA we are concerned with what's pleasing to the mind as well.
Edited by Deathrabbit - March 22 2007 at 17:21
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MikeEnRegalia
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Joined: April 22 2005
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Posted: March 22 2007 at 07:40 |
"white noise" is the most complex signal ... a completely random mix of waveforms. Highly distorted signals come close ... that's why Industrial/Death Metal/Grindcore etc. are among the most difficult to compress signals. On the other hand classical music is really simplistic by comparison of the waveforms.
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goose
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Joined: June 20 2004
Location: United Kingdom
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Points: 4097
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Posted: March 22 2007 at 07:08 |
Creative have too long a history of making crap soundcards for me to give them a chance (Ok, that's probably more my failing than theirs these days..!) and iPods are just overpriced for what they do. I've not seen anything to rival Cowon, although iRiver and Archos aren't bad. And Neuros, if you don't mind something a bit bulky.
All that said, I might end up working for a subsidiary of Creative next year so
Re bitrates/lossless compression, another interesting point is that noisier recordings are much harder to compress - that's not surprising from a technical point of view because of Fourier Transform and all that malarky, but it's counterintuitive because many people expect to be able to use low bitrates on poor quality originals, wheras it's actually probably likely to make more of a difference than on a quality modern recording...
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MikeEnRegalia
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Joined: April 22 2005
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Posted: March 22 2007 at 03:22 |
^ simply use variable bitrates, and it will sound *much* better, at equal file size.
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KoS
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Joined: May 17 2005
Location: Los Angeles
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Points: 16310
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Posted: March 22 2007 at 02:29 |
MikeEnRegalia wrote:
^ it depends on the music too. There are complex audio signals which are hard to compress, and simple signals which are easy to compress. Basically the more is going on in the music the more difficult it is to reduce the information without any audible change.
Here are some albums which are very difficult to compress ... try any of them (Lossless/CD vs. 160kbps mp3) and you'll most definitely hear a difference. I picked those because I rip the CDs using variable bitrates, which means that the encoder chooses higher bitrates for complex signals and lower bitrates for simpler signals, and those albums were the ones with the highest resulting bitrates.
Anata - Under a Stone with No Inscription Into Eternity - The Scattering of Ashes Disillusion - Back to Times of Splendor Devin Townsend - Synchestra Converge - You Fail Me
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I would also add The Human Equation, sounds terrible but acceptable.
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Failcore
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Joined: October 27 2006
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Posted: March 21 2007 at 14:38 |
Yeah, that makes sense. I haven't been able to tell a difference so far, but just to be sure I'll bump it up to 224Kbps, just in case I ever come accross something that it might make a significant difference on. I don't trust VBRs on account of I've heard ITunes does a craptastic job of making them. Coincidentally, I actually have a friend who refuses to listen to anything but wavefiles. He can't fit too much on his music player.
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MikeEnRegalia
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Joined: April 22 2005
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Posted: March 21 2007 at 10:15 |
^ no. The complexity of a signal is essentially determined by how many frequencies are active simultaneously ... the least complex signal is silence (obviously), the second least complex signal is one perfect sine wave (one frequency). All other signals can be thought as a combination of different sine waves layered on top of each other. The more independent waves there are, the more difficult it is to remove information without affecting the quality. mp3 uses some tricks - some parts of the signal cannot be heard anyway for various reasons and can be left out without any problems. But when the desired bitrate is too low, the algorithm also removes parts which are audible ... particularly in high frequency sounds. Cymbals are a good benchmark.
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Failcore
Forum Senior Member
Joined: October 27 2006
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Points: 4625
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Posted: March 21 2007 at 09:34 |
MikeEnRegalia wrote:
^ it depends on the music too. There are complex audio signals which are hard to compress, and simple signals which are easy to compress. Basically the more is going on in the music the more difficult it is to reduce the information without any audible change.
Here are some albums which are very difficult to compress ... try any of them (Lossless/CD vs. 160kbps mp3) and you'll most definitely hear a difference. I picked those because I rip the CDs using variable bitrates, which means that the encoder chooses higher bitrates for complex signals and lower bitrates for simpler signals, and those albums were the ones with the highest resulting bitrates.
Anata - Under a Stone with No Inscription Into Eternity - The Scattering of Ashes Disillusion - Back to Times of Splendor Devin Townsend - Synchestra Converge - You Fail Me
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I doubt I'd still be able to hear a difference. I had some bad ear nfections as a child, that scarred my ear drum and damaged my auditory nerves,;I even have to look up lyrics to most songs before I can understand what they are saying. I suppose by complexity of the signal, you are mainly referring to production stuff?
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MikeEnRegalia
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Joined: April 22 2005
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Posted: March 21 2007 at 02:32 |
^ it depends on the music too. There are complex audio signals which are hard to compress, and simple signals which are easy to compress. Basically the more is going on in the music the more difficult it is to reduce the information without any audible change.
Here are some albums which are very difficult to compress ... try any of them (Lossless/CD vs. 160kbps mp3) and you'll most definitely hear a difference. I picked those because I rip the CDs using variable bitrates, which means that the encoder chooses higher bitrates for complex signals and lower bitrates for simpler signals, and those albums were the ones with the highest resulting bitrates.
Anata - Under a Stone with No Inscription Into Eternity - The Scattering of Ashes Disillusion - Back to Times of Splendor Devin Townsend - Synchestra Converge - You Fail Me
Edited by MikeEnRegalia - March 21 2007 at 02:40
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Failcore
Forum Senior Member
Joined: October 27 2006
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Points: 4625
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Posted: March 20 2007 at 22:26 |
My ears aren't really good enough to determine the difference between lossless and an mp3 @ 160 kbps or above. As long as its sampled at 44100Hz. Gotta have that Nyquist rate, because my hearing range does go pretty high which is a bizarre combination, I guess.
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Unix
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Joined: March 11 2007
Location: Canada
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Points: 253
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Posted: March 20 2007 at 20:29 |
I have an 80 GB Ipod. I love it because I've got many many albums in ALAC format on it, and the sound quality on them is amazing. right now I have about 2800 songs equalling around 20-21 GB (because of the file size that comes with the lossless albums) and It's just great. I also have about 7 GB of video files. I dunno if I'll ever completely fill it up, but I'm gonna try my best to
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rileydog22
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Joined: August 24 2005
Location: New Jersey
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Points: 8844
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Posted: March 20 2007 at 20:24 |
Haha, I just checked and I have over 47 gigs, and that's just my mp3's. I also have gigs upon gigs of archived FLAC bootlegs. It's best to keep lossless, just in case.
Just in case of what, though, is beyond me.
Edited by rileydog22 - March 20 2007 at 20:24
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Failcore
Forum Senior Member
Joined: October 27 2006
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Points: 4625
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Posted: March 20 2007 at 20:19 |
bhikkhu wrote:
It's funny, but you would think 20GB would be more than enough. I still have a hard time when reloading music. I go to delete things, and I hesitate. I use my ipod all of the time, and I like having a lot of options. I can't predict what I will be in the mood to listen to when I get out of work, or when I am traveling. |
Believe it or not, I cant even fill up a 4 gig nano. I had a 30 gb video ipod but never even came close to using all the space so when some men of low moral fiber made off with it and my car stereo, I just replaced it with a nano. Maybe I'm just too picky about what I listen to.
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Arrrghus
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Joined: July 21 2006
Location: United States
Status: Offline
Points: 5296
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Posted: March 04 2007 at 19:08 |
Tony R wrote:
Yes, I guess an Ipod beats my Creative for looks:
but then again you pay extra for those gorgeous designs, and it is a music player that you keep in a pocket, after all...
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Lucky, my old Creative looked like a brick, and it weighed about as much as one, too.
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Paradox
Forum Senior Member
Joined: October 07 2004
Location: England
Status: Offline
Points: 1059
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Posted: March 04 2007 at 19:04 |
To be quite honest I don't like listening to music with headphones. They make my ears hurt and/or give me a headache. I plan to only use MP3 players for use in my car (when I've invested in a new iPod, stereo and speakers for my automobile). All very expensive but I spend a lot of time in my car so it's worth it I feel.
I just hope nothing like this happens...
in advance
Edited by Paradox - March 04 2007 at 19:07
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Kid-A
Forum Senior Member
Joined: October 02 2005
Location: United Kingdom
Status: Offline
Points: 613
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Posted: March 04 2007 at 16:45 |
I prefer the Sony.. had a zen like TOny's for two years but the headphone connection failed :(
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rileydog22
Forum Senior Member
Joined: August 24 2005
Location: New Jersey
Status: Offline
Points: 8844
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Posted: March 04 2007 at 15:55 |
No, I use an iPod, so I am forced to convert. I would do it anyway, though. My headphones are quite nice, Etymotic Research 6i Isolaters. Top-of-the-line in-ear headphones. And I STILL don't hear lossyness. I guess that's good for me, though; more music in less space!
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MikeEnRegalia
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Joined: April 22 2005
Location: Sweden
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Posted: March 04 2007 at 02:11 |
^ so your portable player can play FLAC files? Nice! But if you can't hear a difference to 128kbps you probably need much better headphones.
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rileydog22
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Joined: August 24 2005
Location: New Jersey
Status: Offline
Points: 8844
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Posted: March 03 2007 at 20:50 |
FLAC is WAYYYYY too bulky for me. I use it primarily to trade bootlegs electronically (most traders will not accept lossy sources), then convert to 128 kb/s mp3's for listening. I find that a 128 sounds the same to me as a lossless source, so I don't bother taking up any more space than that.
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