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MikeEnRegalia
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Joined: April 22 2005
Location: Sweden
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Points: 21199
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Posted: January 26 2006 at 10:54 |
^ make that "waveform" ... of course the compression changes that. What a pity that you generally refuse the idea of listening tests. These clearly show that for high bitrates it becomes really difficult to distinguish the CD from the compressed file. EVEN on high end equipment.
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oliverstoned
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Joined: March 26 2004
Location: France
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Points: 6308
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Posted: January 26 2006 at 10:48 |
MikeEnRegalia wrote:
Lindsay Lohan wrote:
Certainly look at analysis on a 192kbps file and the original file from the cd and im sure you will be surprised how much "stuff" is cut away.
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The point is that the human ear can't hear most of that which is removed by the mp3 algorithm. So while it's true that you can hear a difference, it's not like only 10% of the music is left after the compression.
Lindsay Lohan wrote:
And certainly although i cant pin point exactly what is lacking in the mp3 sound image its like playing a wrongly tuned guitar...i cant really tell WHAT is exactly wrong but i certainly can easily hear that it is tuned very wrong.
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Now that's objectively wrong. mp3 does many things, but it doesn't change the tuning ... not in the slightest. |
You've found a new one to bother, bad boy!
Your so-called 10% ruins 100% of the music.
What Lindsay wanted to say IMO, is that the instruments "tones" are ruined by digital, and even more MP3.
I'm not sure it's the good word, in french we say "timbre".
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MikeEnRegalia
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Joined: April 22 2005
Location: Sweden
Status: Offline
Points: 21199
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Posted: January 26 2006 at 10:22 |
Lindsay Lohan wrote:
Certainly look at analysis on a 192kbps file and the original file from the cd and im sure you will be surprised how much "stuff" is cut away.
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The point is that the human ear can't hear most of that which is removed by the mp3 algorithm. So while it's true that you can hear a difference, it's not like only 10% of the music is left after the compression.
Lindsay Lohan wrote:
And certainly although i cant pin point exactly what is lacking in the mp3 sound image its like playing a wrongly tuned guitar...i cant really tell WHAT is exactly wrong but i certainly can easily hear that it is tuned very wrong.
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Now that's objectively wrong. mp3 does many things, but it doesn't change the tuning ... not in the slightest.
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oliverstoned
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Joined: March 26 2004
Location: France
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Points: 6308
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Posted: January 26 2006 at 10:08 |
--->Bob
Buy the smallest Nad cd player.
It makes music.
--->Lindsay
Here are my dream solid state amps (for low in a bi-amp set up):
Goldmund Mimesis 9.4
The sound aesthetic of this brand is fantastic:
extremely neutral, virtual infinite bandwidth, striking dynamic, incredible transparency...
Edited by oliverstoned
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oliverstoned
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Joined: March 26 2004
Location: France
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Points: 6308
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Posted: January 26 2006 at 08:07 |
goose wrote:
oliverstoned wrote:
Compared to a good cd, MP3 is:
-Harsh, edgy, rough.
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That could mean anything of a variety of problems including distortions and artifacts, both of which are of course real.
-Thin
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Again, not very specific, but I assume you mean frequencies missing? That's certainly true although I think "thin" rather implies bass missing, which isn't very common at all.
-Flat
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If you mean treble missing, that's entirely true.
-Lacks of image (sound scene)
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For any MP3 encoded by a modern codec (LAME, for preference) at any bitrate above 128kbps (I'm pretty sure), stereo compression is entirely lossless - i.e. there's no difference in the soundstage of MP3 and CD) - the only explanations for hearing differences in the stereo image are a) you've heard poorly coded MP3s, or b) the other artifacts that really do exist are affecting your perception. Although come to think of it, I suppose if there is a lot of treble on one channel and little on another, it could affect the imaging.
dynamic | Again, I can't see this happening in high bitrate modern encodings.
low, high | covered already
detail, precision, clarity | All the same thing really, and this is probably the biggest audible difference - to do with nearby frequencies to others, as well as possibly some harmonics, being removed. |
Actually, all these adjectives are linked together:
When there's a lack of dynamic, there's also a lack of low and image.
I.E when you add a musical sub on a good system, there's a dramatic improvment on low/dynamic/image. (and also on highs BTW!).
All goes together actually.
"Thin" is an adjective which aplies well to digital versus analog. It's obvious when you switch from one to the other. It's a lack of sound matter. The digital sounds "ethereal" (in the pejorative way) compared to analog. The digital sound is like a skeleton.
Lacks the flesh.
The better the CD player, the more matter you'll have, the more analog it'll sound.
And the more pleasure you'll have!!
Edited by oliverstoned
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Lindsay Lohan
Forum Senior Member
Joined: May 25 2005
Location: Norway
Status: Offline
Points: 3254
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Posted: January 26 2006 at 07:46 |
Certainly look at analysis on a 192kbps file and the original file from the cd and im sure you will be surprised how much "stuff" is cut away.
And certainly although i cant pin point exactly what is lacking in the mp3 sound image its like playing a wrongly tuned guitar...i cant really tell WHAT is exactly wrong but i certainly can easily hear that it is tuned very wrong.
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Lindsay Lohan
Forum Senior Member
Joined: May 25 2005
Location: Norway
Status: Offline
Points: 3254
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Posted: January 26 2006 at 07:41 |
goose wrote:
Lindsay Lohan wrote:
Depends
if you first convert the cd files into wave and then burns it on a cd there seem to be some loss of quality
| If you do that right, you're imagining it. The problem with that method is there's no way of verifying they're identical. |
Im suspecting a loss in the conversion to wave and back to cd format again...most converters are not 100 percent perfect and if you do a advanced spectrum analysis on the two formats there will be certain things that have changed...nothing is 100 percent perfect but it should be pretty accurate and it does not make it a big difference to me.
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goose
Forum Senior Member
Joined: June 20 2004
Location: United Kingdom
Status: Offline
Points: 4097
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Posted: January 26 2006 at 07:22 |
Lindsay Lohan wrote:
Depends
if you first convert the cd files into wave and then burns it on a cd there seem to be some loss of quality |
If you do that right, you're imagining it. The problem with that method is there's no way of verifying they're identical.
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goose
Forum Senior Member
Joined: June 20 2004
Location: United Kingdom
Status: Offline
Points: 4097
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Posted: January 26 2006 at 07:20 |
oliverstoned wrote:
Compared to a good cd, MP3 is:
-Harsh, edgy, rough.
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That could mean anything of a variety of problems including distortions and artifacts, both of which are of course real.
-Thin
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Again, not very specific, but I assume you mean frequencies missing? That's certainly true although I think "thin" rather implies bass missing, which isn't very common at all.
-Flat
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If you mean treble missing, that's entirely true.
-Lacks of image (sound scene)
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For any MP3 encoded by a modern codec (LAME, for preference) at any bitrate above 128kbps (I'm pretty sure), stereo compression is entirely lossless - i.e. there's no difference in the soundstage of MP3 and CD) - the only explanations for hearing differences in the stereo image are a) you've heard poorly coded MP3s, or b) the other artifacts that really do exist are affecting your perception. Although come to think of it, I suppose if there is a lot of treble on one channel and little on another, it could affect the imaging.
dynamic |
Again, I can't see this happening in high bitrate modern encodings.
low, high |
covered already
detail, precision, clarity |
All the same thing really, and this is probably the biggest audible difference - to do with nearby frequencies to others, as well as possibly some harmonics, being removed.
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Lindsay Lohan
Forum Senior Member
Joined: May 25 2005
Location: Norway
Status: Offline
Points: 3254
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Posted: January 26 2006 at 07:19 |
Depends
if you first convert the cd files into wave and then burns it on a cd there seem to be some loss of quality
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MikeEnRegalia
Special Collaborator
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Joined: April 22 2005
Location: Sweden
Status: Offline
Points: 21199
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Posted: January 26 2006 at 07:15 |
^ ok, so you haven't. If the copy really sounded different, the only reasonable explanation is that you made an analog copy - it is possible on old computers or newer ones which aren't configured properly. Digital copies are bit-exact identical to each other, so there cannot be any difference.
But you're right ... we did discuss that to great length and no agreement.
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oliverstoned
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Joined: March 26 2004
Location: France
Status: Offline
Points: 6308
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Posted: January 26 2006 at 06:43 |
MikeEnRegalia wrote:
oliverstoned wrote:
MikeEnRegalia wrote:
Bob Greece wrote:
oliverstoned wrote:
Compared to a good cd, MP3 is: -Harsh, edgy, rough. -Thin -Flat -Lacks of image (sound scene), dynamic, low, high, detail, precision, clarity, precense etc... |
Phew, that's quite a lot. Considering the huge compression in mp3s it's not surprising. OK, I'll try the test. I'll play an mp3 and a CD version of the same song side by side. As my mp3 player is broken, I will write the mp3 onto a CD first.
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Here's how you can perform a listening test:
- Have someone burn two CDs for you - one exact copy of the original CD, the other one from the ripped mp3s. On two identical CD-Rs of course. Then that person marks one CD "A", the other one "B". Then you can listen to them, not knowing which is which.
But make it 192bps mp3 ... at 128kbps the difference is easily recognizable.
| Even worst: i made this test with an original CD and a computer burned copy from that same cd. Same adjectives than up for the computer burned CD... i don't even talk about a MP3 burned CD... |
How did you verify that the computer made an exact copy? |
No way, we have already discussed it.
See the old thread.
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oliverstoned
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Joined: March 26 2004
Location: France
Status: Offline
Points: 6308
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Posted: January 26 2006 at 06:42 |
Lindsay Lohan wrote:
Ah tubes are too...unpractical...yes yes class A amp's might be a bit big but atleast you dont need to replace parts |
Tubes last at least 3 years of intensive use (6 hours per day every day !!)
90€ replacment every 3 years for one amp.
And when you ear what it does in the highs, you'd be ready to pay much more...
Except tube replacment, no other practical problem.
And a Jolida amp makes much more music than any Gryphon or class A amp and costs ONLY 1000 to 2000€, depending on the models.
Edited by oliverstoned
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MikeEnRegalia
Special Collaborator
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Joined: April 22 2005
Location: Sweden
Status: Offline
Points: 21199
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Posted: January 26 2006 at 06:35 |
oliverstoned wrote:
MikeEnRegalia wrote:
Bob Greece wrote:
oliverstoned wrote:
Compared to a good cd, MP3 is: -Harsh, edgy, rough. -Thin -Flat -Lacks of image (sound scene), dynamic, low, high, detail, precision, clarity, precense etc... |
Phew, that's quite a lot. Considering the huge compression in mp3s it's not surprising. OK, I'll try the test. I'll play an mp3 and a CD version of the same song side by side. As my mp3 player is broken, I will write the mp3 onto a CD first.
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Here's how you can perform a listening test:
- Have someone burn two CDs for you - one exact copy of the original CD, the other one from the ripped mp3s. On two identical CD-Rs of course. Then that person marks one CD "A", the other one "B". Then you can listen to them, not knowing which is which.
But make it 192bps mp3 ... at 128kbps the difference is easily recognizable.
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Even worst: i made this test with an original CD and a computer burned copy from that same cd. Same adjectives than up for the computer burned CD... i don't even talk about a MP3 burned CD... |
How did you verify that the computer made an exact copy?
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Lindsay Lohan
Forum Senior Member
Joined: May 25 2005
Location: Norway
Status: Offline
Points: 3254
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Posted: January 26 2006 at 06:35 |
Ah tubes are too...unpractical...yes yes class A amp's might be a bit big but atleast you dont need to replace parts
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oliverstoned
Special Collaborator
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Joined: March 26 2004
Location: France
Status: Offline
Points: 6308
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Posted: January 26 2006 at 06:30 |
Lindsay Lohan wrote:
<SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 40px">Antileon Signature Mono</SPAN>
Look at that beauty...and yes you dont need to have any additonal heating in a room if ye got two of these babies |
Tubes heat even more! (and two is better, one per channel in the highs, plus one or two solid state in the low)
(Kora galaxy-french gear-)
Edited by oliverstoned
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oliverstoned
Special Collaborator
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Joined: March 26 2004
Location: France
Status: Offline
Points: 6308
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Posted: January 26 2006 at 06:26 |
Bob Greece wrote:
oliverstoned wrote:
Tape beats CD |
I've become something of an expert at fixing old cassettes. If a cassette starts to play badly, I will crack open the case, take out the tape, unscrew the case of a blank cassette and put the tape into the new case. 99% of the time it fixes the problems.
Has anyone-else done this? Or similar stuff? |
Yes, it works.
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oliverstoned
Special Collaborator
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Joined: March 26 2004
Location: France
Status: Offline
Points: 6308
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Posted: January 26 2006 at 06:26 |
My CD:
Drive Sonic frontiers SFT-1
Converter Goldmund Mimesis 14
Nordost Digital cable
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Lindsay Lohan
Forum Senior Member
Joined: May 25 2005
Location: Norway
Status: Offline
Points: 3254
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Posted: January 26 2006 at 06:21 |
Antileon Signature Mono
Look at that beauty...and yes you dont need to have any additonal heating in a room if ye got two of these babies
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Bob Greece
Prog Reviewer
Joined: July 04 2005
Location: Greece
Status: Offline
Points: 1823
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Posted: January 26 2006 at 06:18 |
oliverstoned wrote:
Tape beats CD |
I've become something of an expert at fixing old cassettes. If a cassette starts to play badly, I will crack open the case, take out the tape, unscrew the case of a blank cassette and put the tape into the new case. 99% of the time it fixes the problems.
Has anyone-else done this? Or similar stuff?
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