Re: [MP3 ENCODER] Lame development matures ...

2000-07-14 Thread Twinkles

On Tue, Jul 11, 2000 at 08:36:44AM -0400, Greg Maxwell wrote:
 After spending about $100(us) on a pair of Grado SR80s, my 'tolerable'
 collection of 30+gigs of 192Kbit/sec bladeenc encoded mp3s sounded so
 digusting that I rm -Rfed the whole lot of them. (To be recompressed as
 Vorbis files).

Aw what a huge waste. If the quality was really that bad maybe you could
have shared them with all the Napster fans ;)

Then again ... 30Gb via a 28k modem would take a lifetime!

30Gb -- Do you own a cd store or what?
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Re: [MP3 ENCODER] Lame development matures ...

2000-07-12 Thread Shawn Riley

I think my headphones have a better frequency response than my parents' hi-fi system 
which cost A$2500,  incidentally the headphones came free with the system. The hi-fi 
system seems to have a very heavy hump around 60Hz (estimated, not measured) in 
comparison to the headphones.

I don't think it really matters much, but pump a 6 Hz sinewave into the headphones  
you can actually see the cones moving. At that level there's no audible distortion. 
(Or maybe the 6 Hz is masking all its harmonics :-)

Shawn
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Re: [MP3 ENCODER] Lame development matures ...

2000-07-12 Thread John T. Larkin

On Wed, Jul 12, 2000 at 05:15:38PM +, Shawn Riley ([EMAIL PROTECTED]) wrote
 I think my headphones have a better frequency response than my
 parents' hi-fi system which cost A$2500,  incidentally the
 headphones came free with the system. The hi-fi system seems to have
 a very heavy hump around 60Hz (estimated, not measured) in
 comparison to the headphones.  

Stereo systems are much more difficult to set up than headphones.
With headphones, you strap them on your head, and the outside
environment doesn't matter much (unless it's a very noisy
environment).  With speakers, room acoustics play a major role in not
just a (semi) flat frequency response, but also in stereo imaging.

Rooms dimentions and speaker positions can have serious effects on
bass response.  I'd bet that walking around your parents' stereo, you
can find locations that seem to have a 60Hz dip as well -- there are
probably room nodes with both high and low pressure.  Also, putting
speakers too close to the rear (or even side) walls can give a 6dB
boost to bass, and "muddy" the upper frequencies.  Having the speakers
the same distance from the rear and side walls can also be bad.  In
small rooms, the lower frequencies get a 12dB per octave boost.  There
are a myriad of other issues as well.


All in all, you can get good frequency response, detail and all the
other qualities out of a home stereo that you get out of good head
phones -- it just takes more dedication and 'tweaking' (and a lot more
money) than strapping the headphones on.


A stereo freak,
John
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Re: [MP3 ENCODER] Lame development matures ...

2000-07-11 Thread Monty


 At the risk of sounding even more arrogant, I'd like to advise everyone here,
 putting hours in the development of LAME, if they have not already
 have done so, to _invest in some decent pair of headphones_.

I'll echo what Roel says here.  He's not being arrogant, quality headphones are
a must.  To be a bit arrogant myself, I haven't heard anything from [for
example] Sony that counts as quality.  If they came bundled with a cd player or
you can get them at 'WalMart' or 'BestBuy', throw them out now. :-P

 I myself bought a good pair of Sennheiser HD-490 headphones ($45,
 belgium) and a sb128 soundcard ($25, nice linear play and high S/N
 ratio(linux compatible, ensoniq)).

Another set of very good, reasonably priced headphones are the Grado Labs
SR80s (my personal price/performance favorites at roughly $80).

Monty

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Re: [MP3 ENCODER] Lame development matures ...

2000-07-11 Thread Greg Maxwell


I really have to second this. A pair of $2000 floor standing speakers
can't compete with the flatness of a good pair of headphones (due to room 
modes if nothing else). 

After spending about $100(us) on a pair of Grado SR80s, my 'tolerable'
collection of 30+gigs of 192Kbit/sec bladeenc encoded mp3s sounded so
digusting that I rm -Rfed the whole lot of them. (To be recompressed as
Vorbis files).

(Not to mention that I've had a lot more fun listening to music with these
headphones) :) 

On Tue, 11 Jul 2000, Roel VdB wrote:

[snip]
 At the risk of sounding even more arrogant, I'd like to advise everyone here,
 putting hours in the development of LAME, if they have not already
 have done so, to _invest in some decent pair of headphones_.
 
 I myself bought a good pair of Sennheiser HD-490 headphones ($45,
 belgium) and a sb128 soundcard ($25, nice linear play and high S/N
 ratio(linux compatible, ensoniq)).
 
 I think this would be a _very_ rational investment, considering the
 countless hours spent tweaking and perfecting lame.
 
 I've heard several times that people say: I cannot hear the artifacts
 because of my bad hearing (age), but I'm convinced that just about
 everyone here can hear what I'm hearing (with ease).
 
 _Take my word for it_ that when you listen to some clips with this $70
 equipment you
 * will hear the 16kHz region (and miss it when filtered out)
 * will find 192 insufficient for some uses, let alone 128
 
 It's just, being blunt (we're all adults), I find it such a loss of
 efford and time and unnecessary introduction of arbitrariness to
 the debate of sound quality when you don't explore this option.
 
 (btw: my hifi is _not_ a crap system, but the headphones just add a completely other
 dimension)
[snip]

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RE: [MP3 ENCODER] Lame development matures ...

2000-07-11 Thread Mathew Hendry

 From: Monty [mailto:[EMAIL PROTECTED]]
 
  I myself bought a good pair of Sennheiser HD-490 headphones ($45,
  belgium) and a sb128 soundcard ($25, nice linear play and high S/N
  ratio(linux compatible, ensoniq)).
 
 Another set of very good, reasonably priced headphones are 
 the Grado Labs
 SR80s (my personal price/performance favorites at roughly $80).

Grado are good, as are Beyerdynamic. I have DT331s (80UKP) at home and DT75s
(35UKP) at work. Both are very light and comfortable.

I've tried several pairs of Sennheisers, and found them bass-heavy and
uncomfortable. YMMV.

-- Mat.
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RE: [MP3 ENCODER] Lame development matures ...

2000-07-11 Thread Alex Broadhead

Howdy,

I'll third (or fourth or whatever) this as well, though with a few
caveats...

 I really have to second this. A pair of $2000 floor standing speakers
 can't compete with the flatness of a good pair of headphones 
 (due to room modes if nothing else). 

Well, yes and no.  I rely strongly on headphones to pick apart frequency
content (esp. highs), but I'd want the aforementioned $2000 speakers if I
were really concerned about stereo image and spatialization.  Thankfully,
I'm not, though, which is good, 'cause I don't have the cash for that kind
of system.

 After spending about $100(us) on a pair of Grado SR80s...

I guess I'm going to have to try to locate some Grados.  Here at work I use
AKG K240df, which are pretty much studio standard, and fairly expensive
(~$200).

I would note that there appears to be at least a small contingent who would
take issue with Monty's disdain for headphones by Sony and/or headphones
from Beast Buy or equivalent chains...  I found some discussion either here
(http://www.headwize.com/) or elsewhere on the pros/cons of relatively
inexpensive Sony earbuds, which are actually what I use for day-to-day
listening.

Also, I'd like to plug http://pcavtech.com/ once more.  They have
reorganized their soundcard ratings to be more readable, and have a lot of
'benchmark' data on pretty much everything out there, side by side for
comparison.  When I was looking for soundcards, everyone else was offering
subjective impressions or manufacturer spam statistics - these guys do it
hard way it and makes a big difference.  They confirm that the SB128 does
not suck (unlike many other fine SB products).

I use a refurbished Turtle Beach Pinnacle here at work, and it has _very
good_ D/A, though it has a disturbing tendency to crash my NT4 machine hard
once a week or so - but one can never really be sure who to blame that on,
now can one...

Alex
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Re: [MP3 ENCODER] Lame development matures ...

2000-07-11 Thread David Bridson

There's not a part of this I don't disagree with. Even on a very decent
Hi-Fi and stereo speakers, I find it hard to find many of these
artifacts people keep
talking about. On a £20 pair of headphones, almost everything sounds
marvellous, though any encoding artifacts can be heard well. Another
thing -
Bass sounds are much clearer on headphones. To get even a reasonable
level of
Bass on my stereo, I have to boost the bass. With headphones, there's
plenty
of bass, even with bass-boost turned off.

David
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