[SlimDevices: Ripping] Re: Audible difference between FLAC and 320 kps MP3s?

2006-11-04 Thread Robin Bowes
CatBus wrote:
 There's three ways any discussion like this can end:
 
 1) Agree to disagree.  Nobody other than me wants to do an ABX test,
 either because it's too hard or they don't think the results will be
 favorable (or they're waiting for some expensive equipment they'll
 never get ;) )
 2) Perform the ABX test, fail to distinguish the MP3s with certainty. 
 Claim that this proves ABX testing doesn't really work (people really
 do this).  Refuse to post your results.
 3) Perform the ABX test, fail to distinguish the MP3s with certainty. 
 Discover that it's okay to be human.  Post your results here, showing
 humility.
 4) Perform the ABX test, distinguish all of the MP3s with high
 certainty.  Post your results here for all to see*

That's four ways. :)

R.

___
ripping mailing list
ripping@lists.slimdevices.com
http://lists.slimdevices.com/lists/listinfo/ripping


[SlimDevices: Ripping] Re: Audible difference between FLAC and 320 kps MP3s?

2006-11-04 Thread Havoc

We amused ourself with such a test on a forum. Someone used a wav to
start, made an mp3 of it and brought it back to wav. Offered both
tracks as wav without more info. See who can tell them apart. I agree
it is very hard, and most (90%) won't be able to do it. You could do
it with more types of music to check if it makes a difference.


-- 
Havoc

Havoc's Profile: http://forums.slimdevices.com/member.php?userid=5064
View this thread: http://forums.slimdevices.com/showthread.php?t=29286

___
ripping mailing list
ripping@lists.slimdevices.com
http://lists.slimdevices.com/lists/listinfo/ripping


[SlimDevices: Ripping] Re: Audible difference between FLAC and 320 kps MP3s?

2006-11-04 Thread Skunk

CatBus;152374 Wrote: 
  But remember, don't compare FLACs and MP3s derived from the CDs to the
 HDCD--you'd likely hear plenty of differences totally unrelated to the
 compression codec.

You're kind of helping to illustrate my point here. 

HDCD's also contain the standard CD version, which is heard unless your
external DAC can decode the signal. You probably own a few HDCDs and
didn't even know it.

HDCD FLAC files can be decoded by an external DAC (FLAC is bit
perfect), so in effect you're listening to the HDCD (20bit).

HDCD Mp3 files will not be decoded by an external DAC (Mp3 is not bit
perfect), so you're  in effect listening to the CD version (actually a
compressed generation of it).

And yes, you're right- you're likely to hear plenty of differences, but
they are TOTALLY related to the compression codec.


-- 
Skunk

Skunk's Profile: http://forums.slimdevices.com/member.php?userid=2685
View this thread: http://forums.slimdevices.com/showthread.php?t=29286

___
ripping mailing list
ripping@lists.slimdevices.com
http://lists.slimdevices.com/lists/listinfo/ripping


[SlimDevices: Ripping] Re: Audible difference between FLAC and 320 kps MP3s?

2006-11-04 Thread CatBus

Skunk;152497 Wrote: 
 You're kind of helping to illustrate my point here. 
 
 HDCD's also contain the standard CD version, which is heard unless your
 external DAC can decode the signal. You probably own a few HDCDs and
 didn't even know it.
 
 HDCD FLAC files can be decoded by an external DAC (FLAC is bit
 perfect), so in effect you're listening to the HDCD (20bit).
 
 HDCD Mp3 files will not be decoded by an external DAC (Mp3 is not bit
 perfect), so you're  in effect listening to the CD version (actually a
 compressed generation of it).
 
 And yes, you're right- you're likely to hear plenty of differences, but
 they are TOTALLY related to the compression codec.

I strongly doubt the CD version and HDCD version are mastered the
same--in which case the FLACs for the two versions should sound
markedly different.  You've got to route everything through the same
DAC and other hardware or it's not a valid test, sorry.  Otherwise you
can't say for certain the difference you're hearing isn't from the
difference in quality between the two DACs, and not the compression at
all.  That's the breaks when you go the science route.  All variables
have to remain constant except the one you're examining.  i.e. if one
sample is resampled to 48KHz (ugh!), ALL samples have to be resampled
to 48KHz.

And as for hearing the differences, all you need is proof!


-- 
CatBus

CatBus's Profile: http://forums.slimdevices.com/member.php?userid=7461
View this thread: http://forums.slimdevices.com/showthread.php?t=29286

___
ripping mailing list
ripping@lists.slimdevices.com
http://lists.slimdevices.com/lists/listinfo/ripping


[SlimDevices: Ripping] Re: Audible difference between FLAC and 320 kps MP3s?

2006-11-03 Thread Havoc

I more value the time it takes to encode since my server/ripper sits on
a very slow pc (but it doesn't use much current). This also means that
every device could play the data back. The audio doesn't have to travel
to other devices, so the format doesn't matter. I do have a lot of
recordings that are saved as 24 and 32 bit wav files, so that would
also be work saved. If I ever need to burn a cd from the files when a
disc gets bad, it is less work again than having to transcode first.

I don't feel 40% saving is worth the hassle compared to dropping in
another disk.


-- 
Havoc

Havoc's Profile: http://forums.slimdevices.com/member.php?userid=5064
View this thread: http://forums.slimdevices.com/showthread.php?t=29286

___
ripping mailing list
ripping@lists.slimdevices.com
http://lists.slimdevices.com/lists/listinfo/ripping


[SlimDevices: Ripping] Re: Audible difference between FLAC and 320 kps MP3s?

2006-11-03 Thread Craig

Well my system doesn't compete with some of the stuff the 'Audiophiles'
talk about but one thing is quite clear.

Listening to a well recorded track from an MP3 and the sound comes out
of the fireplace. Listen to the same track in Flac and the image comes
from the whole wall. There really is no comparison.

I can see that somebody would rip their entire collection to MP3 and
regret having to do it all again later. I can't imagine that happening
with lossless.

Craig


-- 
Craig

MC2Slim - Windows Shell and J River Media Center Integration for
Squeezebox.

http://www.duff-zapp.co.uk

Craig's Profile: http://forums.slimdevices.com/member.php?userid=96
View this thread: http://forums.slimdevices.com/showthread.php?t=29286

___
ripping mailing list
ripping@lists.slimdevices.com
http://lists.slimdevices.com/lists/listinfo/ripping


[SlimDevices: Ripping] Re: Audible difference between FLAC and 320 kps MP3s?

2006-11-03 Thread CatBus

Craig;152325 Wrote: 
 Well my system doesn't compete with some of the stuff the 'Audiophiles'
 talk about but one thing is quite clear.
 
 Listening to a well recorded track from an MP3 and the sound comes out
 of the fireplace. Listen to the same track in Flac and the image comes
 from the whole wall. There really is no comparison.
 
 I can see that somebody would rip their entire collection to MP3 and
 regret having to do it all again later. I can't imagine that happening
 with lossless.
 
 Craig

Not intending to throw any ice-water on this good discussion, but it's
important to bear in mind that not all MP3s are created equal.  I'm
assuming for the purposes of THIS discussion we're talking only about
MP3s ripped straight from the source CD using a good ripper, and
encoded at the highest bitrate the MP3 format allows, preferably using
LAME.

I don't mean to pick on Craig, and that's not my intention, but I
really do hear MP3s sound bad all the time.  When in fact they mean
MP3s created with iTunes at 128kbps sound bad, or some such thing. 
But we're not talking about low-bitrate MP3s created with sub-par
encoders, we're talking about the best-quality MP3s possible with
today's encoders.

I've got problems with the MP3 format myself (I don't use it for
anything I own), but at high enough bitrates, an MP3 will sound exactly
the same as a CD for the vast majority of music, to all human listeners,
period, and that's a statement which can be proven or disproven with an
ABX test any time you like.  Whether or not a format is transparent at
a particular bitrate for a set of tracks for a particular listener
isn't a matter of opinion or religion--you can test this yourself
scientifically and get an answer.  And if it's not double-blind, it's
not a valid test.

And yes, I'm the same person who posted the name of a sample which
completely wrecks MP3 at 320kbps.  My point was that killer samples
are not representative samples, which is rather the point.


-- 
CatBus

CatBus's Profile: http://forums.slimdevices.com/member.php?userid=7461
View this thread: http://forums.slimdevices.com/showthread.php?t=29286

___
ripping mailing list
ripping@lists.slimdevices.com
http://lists.slimdevices.com/lists/listinfo/ripping


[SlimDevices: Ripping] Re: Audible difference between FLAC and 320 kps MP3s?

2006-11-03 Thread Mark Lanctot

I have heard another killer track is -Kalifornia- by Fatboy Slim.  The
synthesized voice at the beginning of the track is quite problematic. 
Earlier MP3 encoders had a tough time with the rapidly changing high
frequency component.


-- 
Mark Lanctot

Mark Lanctot's Profile: http://forums.slimdevices.com/member.php?userid=2071
View this thread: http://forums.slimdevices.com/showthread.php?t=29286

___
ripping mailing list
ripping@lists.slimdevices.com
http://lists.slimdevices.com/lists/listinfo/ripping


[SlimDevices: Ripping] Re: Audible difference between FLAC and 320 kps MP3s?

2006-11-03 Thread Wasaia

Once I did a comparison:
I listened to a song with a folk-guitar and a violin as a 320Kbps mp3
and a wav-file. The difference was that the mp3 sounded much less
transparent. Accoustic instruments generate many harmonics which make
up the characteristic sound of each instrument. The high harmonics give
the instrument a brilliance. These are very high frequencies, which are
not completely reconstructed with any mp3-bitrate.
If you use in the test electronic music or rock (etc.), you will
probably not hear the difference between 320 and lossless. But with
quality recordings of accoustic music, I think many people would hear
the difference when listening on a good stereo.

I guess it all comes down to your personal expectations, taste and
priorities. Aaaah, how long is mankind discussing this topic... :)


-- 
Wasaia

Wasaia's Profile: http://forums.slimdevices.com/member.php?userid=7289
View this thread: http://forums.slimdevices.com/showthread.php?t=29286

___
ripping mailing list
ripping@lists.slimdevices.com
http://lists.slimdevices.com/lists/listinfo/ripping


[SlimDevices: Ripping] Re: Audible difference between FLAC and 320 kps MP3s?

2006-11-03 Thread CatBus

I also did a comparison between 320 kbps MP3 and the original, and was
easily able to tell the difference.

Then I did the exact same test double-blind, and suddenly my superhuman
hearing abilities disappeared.  Just saying...knowing which sample is
which can do great things for your perception.

Incidentally, if anyone is able to ABX a representative sample of 50
music tracks from their collection at 320kbps, post the results here or
call a newspaper.  It's never been done before--maybe there's a prize!


-- 
CatBus

CatBus's Profile: http://forums.slimdevices.com/member.php?userid=7461
View this thread: http://forums.slimdevices.com/showthread.php?t=29286

___
ripping mailing list
ripping@lists.slimdevices.com
http://lists.slimdevices.com/lists/listinfo/ripping


[SlimDevices: Ripping] Re: Audible difference between FLAC and 320 kps MP3s?

2006-11-03 Thread CatBus

Skunk;152370 Wrote: 
 Never? What if HDCD's are compared Mp3 vs. FLAC?
 
 I have over 50 HDCD tracks, maybe I should buy an Assemblage DAC just
 to prove you wrong :-)

Sure, as long as the HDCDs are the source for the FLACs and MP3s. 
Although you must realize that increasing the number of channels while
maintaining a constant overall bitrate lowers the bitrate per channel,
which some might just consider cheating ;)  Inventing a 320,000-channel
audio format is a sure way to ABX 320kbps MP3s--let's stick to CDs to
avoid having to argue about this.

There's three ways any discussion like this can end:

1) Agree to disagree.  Nobody other than me wants to do an ABX test,
either because it's too hard or they don't think the results will be
favorable (or they're waiting for some expensive equipment they'll
never get ;) )
2) Perform the ABX test, fail to distinguish the MP3s with certainty. 
Claim that this proves ABX testing doesn't really work (people really
do this).  Refuse to post your results.
3) Perform the ABX test, fail to distinguish the MP3s with certainty. 
Discover that it's okay to be human.  Post your results here, showing
humility.
4) Perform the ABX test, distinguish all of the MP3s with high
certainty.  Post your results here for all to see*

* And then wake up, and curse loudly!


-- 
CatBus

CatBus's Profile: http://forums.slimdevices.com/member.php?userid=7461
View this thread: http://forums.slimdevices.com/showthread.php?t=29286

___
ripping mailing list
ripping@lists.slimdevices.com
http://lists.slimdevices.com/lists/listinfo/ripping


[SlimDevices: Ripping] Re: Audible difference between FLAC and 320 kps MP3s?

2006-11-02 Thread probedb

Unless you do an ABX yourself you won't know. Some people maybe able to
hear a difference, others may not. I can't tell the difference myself.
But you must ABX, just swapping tracks whilst knowing which format
you're using is biasing the results.

I only rip to FLAC on my server as I have the disc space and it makes
it easy to convert to whatever new lossy format comes along for my
portable player without having to rerip :)


-- 
probedb

Paul.

'last.fm' (http://www.last.fm/user/probedb)
'myspace.com' (http://www.myspace.com/l328nud)

probedb's Profile: http://forums.slimdevices.com/member.php?userid=7825
View this thread: http://forums.slimdevices.com/showthread.php?t=29286

___
ripping mailing list
ripping@lists.slimdevices.com
http://lists.slimdevices.com/lists/listinfo/ripping


[SlimDevices: Ripping] Re: Audible difference between FLAC and 320 kps MP3s?

2006-11-02 Thread Havoc

If slim would support broadcast wave where you can add info in the
headers, I would not even consider to save the space going to flac. A
terabyte or two isn't that expensive anymore. And the bandwidth needed
isn't that large either.


-- 
Havoc

Havoc's Profile: http://forums.slimdevices.com/member.php?userid=5064
View this thread: http://forums.slimdevices.com/showthread.php?t=29286

___
ripping mailing list
ripping@lists.slimdevices.com
http://lists.slimdevices.com/lists/listinfo/ripping


[SlimDevices: Ripping] Re: Audible difference between FLAC and 320 kps MP3s?

2006-11-02 Thread probedb

Havoc;151997 Wrote: 
 If slim would support broadcast wave where you can add info in the
 headers, I would not even consider to save the space going to flac. A
 terabyte or two isn't that expensive anymore. And the bandwidth needed
 isn't that large either.

But FLAC is lossless, is natively supported on the SB and has tagging,
why would you choose WAVE? It has zero benefits.


-- 
probedb

Paul.

'last.fm' (http://www.last.fm/user/probedb)
'myspace.com' (http://www.myspace.com/l328nud)

probedb's Profile: http://forums.slimdevices.com/member.php?userid=7825
View this thread: http://forums.slimdevices.com/showthread.php?t=29286

___
ripping mailing list
ripping@lists.slimdevices.com
http://lists.slimdevices.com/lists/listinfo/ripping


[SlimDevices: Ripping] Re: Audible difference between FLAC and 320 kps MP3s?

2006-11-02 Thread CatBus

probedb;152079 Wrote: 
 But FLAC is lossless, is natively supported on the SB and has tagging,
 why would you choose WAVE? It has zero benefits.

Well, transcoding time from WAV-lossy might be slightly shorter than
FLAC-lossy.  That's like .03 percent of one benefit ;)


-- 
CatBus

CatBus's Profile: http://forums.slimdevices.com/member.php?userid=7461
View this thread: http://forums.slimdevices.com/showthread.php?t=29286

___
ripping mailing list
ripping@lists.slimdevices.com
http://lists.slimdevices.com/lists/listinfo/ripping


[SlimDevices: Ripping] Re: Audible difference between FLAC and 320 kps MP3s?

2006-11-02 Thread mrfantasy

Especially on my actual stereo--there's no comparison on any music. 
320Kbps MP3 does sound really good, but FLAC always sounds better.

I have a harder time telling on my work PC over computer speakers, but
only between 320Kbps and FLAC.  I can tell the difference between every
other bitrate.

Now, just because I can tell a difference doesn't mean I don't mind
listening to lower bitrates, or that I don't enjoy them.  It just means
I can tell.  Actually, I find MP3s of any bitrate annoying on my home
system, but that's just because it's good enough to play back the bad
stuff too.


-- 
mrfantasy

--Mike

mrfantasy's Profile: http://forums.slimdevices.com/member.php?userid=1127
View this thread: http://forums.slimdevices.com/showthread.php?t=29286

___
ripping mailing list
ripping@lists.slimdevices.com
http://lists.slimdevices.com/lists/listinfo/ripping


[SlimDevices: Ripping] Re: Audible difference between FLAC and 320 kps MP3s?

2006-11-02 Thread JJZolx

Havoc;151997 Wrote: 
 If slim would support broadcast wave where you can add info in the
 headers, I would not even consider to save the space going to flac. A
 terabyte or two isn't that expensive anymore. And the bandwidth needed
 isn't that large either.
I'd hate to give up the 40% or so of diskspace that Flac encoding saves
me, with no loss of audio quality.  The larger the library, the larger
the savings in disk drive cost.  And if you backup to disk, as I do,
you need twice the drive space, so the savings can be considerable.

The space savings can also be convenient. If I can fit my entire Flac
library on a single moderately priced 400GB disk, and can fit the
backup on a disk of the same size, then not having to use multiple
drives, particularly for the backup, makes life much easier.


-- 
JJZolx

Jim

JJZolx's Profile: http://forums.slimdevices.com/member.php?userid=10
View this thread: http://forums.slimdevices.com/showthread.php?t=29286

___
ripping mailing list
ripping@lists.slimdevices.com
http://lists.slimdevices.com/lists/listinfo/ripping


[SlimDevices: Ripping] Re: Audible difference between FLAC and 320 kps MP3s?

2006-11-01 Thread KBP

I'm listening :-) (all my music is 320k LAME mp3)


-- 
KBP

KBP's Profile: http://forums.slimdevices.com/member.php?userid=5817
View this thread: http://forums.slimdevices.com/showthread.php?t=29286

___
ripping mailing list
ripping@lists.slimdevices.com
http://lists.slimdevices.com/lists/listinfo/ripping


[SlimDevices: Ripping] Re: Audible difference between FLAC and 320 kps MP3s?

2006-11-01 Thread adamslim

alderash;151565 Wrote: 
 Is there *really* an audible difference to you between FLAC and an MP3
 at 320 kps?  Ever do a direct comparison?

Is there really a meaningful saving in HD space?  What if you upgraded
your hi-fi and then could tell the difference?  The thought of
reripping and retagging again, after having to do so once going from
192kbps AACs (iPod) to FLACs for the SB.


-- 
adamslim

SB3 and Shanling CDT-100, Rotel RT-990BX, Esoteric Audio Research 859,
Living Voice Auditorium IIs, Nordost cables

adamslim's Profile: http://forums.slimdevices.com/member.php?userid=7355
View this thread: http://forums.slimdevices.com/showthread.php?t=29286

___
ripping mailing list
ripping@lists.slimdevices.com
http://lists.slimdevices.com/lists/listinfo/ripping


[SlimDevices: Ripping] Re: Audible difference between FLAC and 320 kps MP3s?

2006-11-01 Thread alderash

I think there is a meaningful savings in hard drive space.  A typical
FLAC file might be 30 MB, whereas the same song as a 320 MP3 is maybe 6
MB.  That's a quarter of what the FLAC file is.

I realize memory is getting cheaper all the time, but still . . . if
you are achiving hundreds or thousands of songs, I think the space
between the two is substantial.

The other issue is encoding multiple times for various purposes.  Right
now I encode as FLAC for home listening on my main system, but if I want
to grab an iPod and go, I need to recode as an MP3.  It would be easier
to just have one folder of songs that serve a variety of situations. 
An MP3 encoded with LAME at 320 kps would handle both scenarios -- it's
just a question of whether the sound quality REALLY supports going
lossless.


-- 
alderash

alderash's Profile: http://forums.slimdevices.com/member.php?userid=6784
View this thread: http://forums.slimdevices.com/showthread.php?t=29286

___
ripping mailing list
ripping@lists.slimdevices.com
http://lists.slimdevices.com/lists/listinfo/ripping


[SlimDevices: Ripping] Re: Audible difference between FLAC and 320 kps MP3s?

2006-11-01 Thread radish

It depends entirely on your system and your ears. There's no point
whatsoever in asking someone else's opinion, as they will be listening
with their system and their ears. From a scientific POV they are
clearly and demonstratably different, but it all comes down to
perception and sensitivity.

Do the test yourself, if you can't tell the difference, then great, you
can save a few gb. Whether that's worth it given the cost (in time) of
reripping is quite another thing. I'm much more concerned about the
amount of time it would take me to rerip to FLAC in the future than I
am about using more disk space. My time is worth a lot :)


-- 
radish

radish's Profile: http://forums.slimdevices.com/member.php?userid=77
View this thread: http://forums.slimdevices.com/showthread.php?t=29286

___
ripping mailing list
ripping@lists.slimdevices.com
http://lists.slimdevices.com/lists/listinfo/ripping