These days (using -V5 -q2 --nspsytune -Y) I get what I consider an
unbalanced graph where it rarely uses over 160bps. I use to get a more
logarithmic looking graph. Is this normal.
56 [0]
64 [ 10] *
80 [ 435] ***
96 [ 2031]
112 [ 3557] %***
128 [ 9930]
A few days ago, Frank said one of his routines should have been included
by default in LAME when KLEMM_01 (new ath routine) was included
otherwise the new ath reduces quality. Has this been done yet?
Ross.
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I think Roberts code should be included and implemented with a switch so
us "non-compilers" can test it.
Ross.
Roel VdB wrote:
Hello Robert,
Thursday, September 28, 2000, 8:12:59 PM, you wrote:
RH Dmitry schrieb am Don, 28 Sep 2000:
but what version i have to upload???
from project
Title: RE: [MP3 ENCODER] realtime encoding specs ?
Mark Powell wrote:
That was with the options:
-V1 -b128 -mj -h
under FreeBSD. It wasn't a competition I was just giving him some
empirical evidence to work with :)
My reults were based on -V4 -b32 -mj -h
Ross.
Pierre Hugonnet wrote:
It seems to be for DOS/WIN only... Is there something equivalent for Unix ?
I don't think so though someone may be working on it. The utility
mentioned, however, works fine with a little WINE.
Ross.
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Mark Powell wrote:
FYI My PIII 583MHz (not Coppermine) provides ~1.5x normal speed.
On Win98 the new VBR encodes at ~1.1x on my AMD K62-428. CBR is a bit faster.
K62 is known for slow FPU so I would expect much better from the P3. I think the
LAME website says P2-266 will encode CBR
Or if you want a Windows GUI app then MP3Trim is good (http://mp3trim.8m.com)
Ross.
Mark Taylor wrote:
Is it theoretically possible to amplify the sound in a mp3 file without
reencoding it? What would be the quality loss of this operation?
Yes: modifying the global_gain field in
We are expecting our second in November. From my experience, I suspect we will
be hearing less from you in the next few months. You will most likely be
sleeping in your spare time!
Cheers,
Ross.
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Title: RE: [MP3 ENCODER] ACM Driver
There has not been one written for LAME. Apparently the Windows ACM doesn't support VBR encoding and LAME wasn't completely thread safe at the time so it was abandoned.
Ironically, a few days ago it was mentioned that someone (you?) was working on an ACM
Bill Currie wrote:
Now all I need is to find (or write) a program to create a correct Xing
header. I really don't feel like re-ripping all those cds (about 30).
I need one of those too! If you write it, I'll test it :)
Ross.
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I tried the in_mpg123 Winamp plug-in for my FM radio station a few weeks ago
but I had to switch back to nitrane. If it finds a non-existing file in the
playlist it just stops playing -- doesn't advance to the next song. I
occasionally have this problem so I can't use it. I e-mailed Shibath
Do a search of the mail list archive where it has been discussed in
detail.
DataFlow wrote:
could anyone tell me what the difference is between ABR and VBR?(maybe
a URL where I can learn more?) I know VBR stands for Variabele
Bitrate, it means that every MPEG-frame can have a different #
It would be easier/better to add multiple file support to LAME. It has been
previously mentioned that BladeEnc has this solved the gap problem with an
option to internally join all selected WAVs for the encoding process.
Ross.
Mathew Hendry wrote:
From: Frank Klemm [mailto:[EMAIL
Thanks E. I like the term "fixed".
"E. Zann" wrote:
Hi folks,
Just found this link to Mayah EditPro:
http://cooler.irk.ru/sound/software/editors/edpro22.zip
This version is fixed by Radium, here is what they
say about it: "Mayah EditPro is an MP3 file editor.
It allows you to edit mp3
Try http://www.geocities.com/MP3utility
Cheers,
Ross Levis.
Francois du Toit wrote:
I am looking for a program to check the integrity of mp3's. I know
that Nero Burning Rom does some sort of check on mp3's before burning
them, but I haven't been able to find a similar utility to check my
"Eric.Howgate" wrote:
Whilst sample rate is up for discussion, - could
somebody confirm what is the quality of broadcast
FM music is in terms of sample rate ? When
recording from the radio via line-in Cool Edit
shows the source as 16 bit stereo @ 32KHz.
It is an analogue (analog for you
Title: RE: [MP3 ENCODER] Difference between 8 and 16 bit quality
I thought the number of bits refers to the number of variations in volume from silence to maximum. 16-bit providing 65536 steps and 8-bit providing only 256. I would think it would be difficult to hear the volume change on an
Title: RE: [MP3 ENCODER] lame exit problems
This should work.
Right-click the icon at the top left of the DOS window. Select Properties in the Program tab select Close on Exit. This will create a LAME.PIF which Windows should recognise when loading LAME.EXE.
Ross.
-Original
It was Acy Stapp not Mark T that had a look at doing it but apparently the Windows
ACM doesn't support VBR and I think it was abandoned. I'm not sure where the
problem is because I'm fairly sure that the Fraunhofer ACM does play VBR MP3 WAV
files.
I haven't found a utility that can add a
That's a controversial move IMO. The advantage of true VBR is that more
complex recordings use higher bitrates and less complex have low
bitrates and filesizes with roughly the same amount of distortion. With
Marks ABR the operator chooses the bitrate, so complex recordings have
high
Mathew Hendry wrote:
From: Ross Levis [mailto:[EMAIL PROTECTED]]
apparently the Windows
ACM doesn't support VBR and I think it was abandoned. I'm
not sure where the
problem is because I'm fairly sure that the Fraunhofer ACM
does play VBR MP3 WAV files.
It does, because
Mark Taylor wrote:
I like this quote:
--start quote---
According to Brandenburg, the ISO asked Fraunhofer to develop sample
encoding and decoding software as a tool for industry to learn how to
use MP3. The source code -- the underlying instructions -- for these
programs was carelessly
Jaroslav Lukesh wrote:
http://www.ntelec.com.hk/
3xAA battery
Shame this one doesn't support CD-RW or I would attempt a purchase myself.
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Slightly off topic but does anyone know of utility to add the Xing VBR
header to a headless VBR MP3. Some time ago I used a LAME front-end to
encode a number of CDs and it must have enforced the -t switch. It is a
major inconvience for producing scheduled playlists for my radio station.
Mark Taylor wrote:
-Y enables the true noise shaping VBR mode. It should give
similar results to #1, but be much faster.
Not similar results at all. -Y is producing much larger files with less spread across
the
bitrates. A graph of the -Y results doesn't look natural in my opinion with
Mark?
and any ideas when -Y will become default. Does it still need some testing or tuning?
Ross.
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Takehiro Tominaga wrote:
Full huffman search is still alpha status, and it sometimes lock up
and is usually "painfully" slow.
This feature will be available with the MMX enabled Huffman code search
routine next weekend, I hope.
But, I am not full time LAME programmer and LAME is only my
I've inadvertantly encoded 5 or 6 albums with this switch. Is there likely to be
any quality problems that you know about.
Ross.
Mark Taylor wrote:
The -q option is for internal testing only :-)
-q1 enables some more the thorough scalefactor searching
code that hasn't been worked on in a
Takehiro some time ago (below) added or suggested he was adding this
option to LAME. Is it available? I mistakenly thought -q1 was
activating it as it is so much slower.
Cheers,
Ross.
Takehiro wrote:
I agree with -h n option.
So I list the some quality
I'm using new Win32 compiles from Dmitry. There appears to be a bug in LAME
3.84 CVS where it won't start encoding some WAV files (LAME -q1 file.wav). It
just sits there doing nothing probably in an infinite loop. -q2 works fine. I
managed to encode an entire album but for another album there
I'm forced to be an Outlook user at work, which this was sent from. I will
give myself top marks.
Ross.
Ingo Saitz wrote:
My sister became some sort of MS Certified Professional
today. I [Telsa] knew
she could do it. She's the only person I know who sends me
email with Outlook
and yet
I think your wasting your time Shawn. There have been problems in the past with LAME
and other encoders which may have been expoited to make bad sounding MP3's, but as
each distortion is isolated, it has also generally been worked on to overcome the
distortion. So I suspect your album would
Christian Schepke wrote:
What about the idea with the trial-version of LAME. AFAIK it's allowed to
distribute trialversions of mp3-encoders. We could include a little routine
that displays a WARNING TRIAL EXPIRED or something alike, when the 30 days
are over.
That is true BUT, the binary
Has anyone bothered telling Nullsoft about this bug?
Ross.
Mark Taylor wrote:
I put a web page together on the winamp decoder bug, since I've
now recieved 4 independent LAME bug reports related to these
pure sine wave and "sweep" test cases.
www.sulaco.org/mp3/winamp/winamp.html
This
There has been a number of requests for an ACM. Acy Stapp had a go but had
problems with the Windows ACM not supporting VBR, but the main problem was
LAME was not thread safe at the time which the ACM requires. I see Mark T
has made some changes in his area so maybe its time for another try.
Mathew Hendry wrote:
normal stereo allowing a more "free" allocation of bandwidth between the
channels?
AFAIK it doesn't. I'm not sure where that idea originated.
I have been under the impression for several years that Stereo (mode 0) shares
bits between the channels. If one channel was
Yes it is. The question is whether dual_channel is more restricted than
that.
Dual-channel is just what the name suggests. Each channel is completely
independant. I don't see any advantage of using dual-channel.
Ross.
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I'm using Dmitry's WIN32 compile of 3.80 dated 19 April and there is some
bad noise frames being generated throughout many songs I've just encoded.
I'm not entirely sure but it appears to occur in the song at the points
where alot of informative errors regarding pre or post bit wastage occur.
In
Hi Matthew. Interesting analysis. Just one question.
What do you mean by
WinAmp's EQ sucks bigtime. They all have the same frequency response.
Ross.
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Mark Taylor wrote:
On Sat, 15 Apr 2000, Ross Levis wrote:
If anyone is interested,VBR is now more spread over the bitrates. Here is a $
bitrate. Some -V tuning is obviously needed. I guess the better lossless co$
Did you notice any quality differences?
I did some listening tests
I was using the "Russian" WIN32 compile which was given an alpha revision of "k",
compiled 14 April.
Ross.
Robert Hegemann wrote:
Hi Ross,
as LAME 3.80 is the CVS version, may I ask you:
which version of LAME 3.80 did you compare with LAME 3.70?
Robert
Ross Levi
This damn Netscape Messenger does some strange things sometimes.
Ross.
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If anyone is interested,VBR is now more spread over the bitrates. Here is a partial
frame analysis of a song (all encoded with -h -mj ). I included -V3 analysis to
obtain a closer average
bitrate. Some -V tuning is obviously needed. I guess the better lossless compression
is having an
Mark has said a few times that there are several rather
obvious things you
could change that may increase sound quality.
Could these "things" be implemented in an MP3 encoder, or would they need a
completely different format?
Ross.
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MP3 ENCODER mailing list (
Shawn Riley wrote:
So the encoder would have a cow if it was using forced JS that happened?
Mark, can you mention if LAME can turn off joint-stereo when needed even when -mj is
specified. Or does it force it on for all frames?
Thanks,
Ross.
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MP3 ENCODER mailing list (
Mark Taylor wrote:
what's a Windows ACM?
Audio Compression Manager driver. (VCM=Video...) It provides native support from
MS-Windows OS calls to the codec. Any audio application would be able to
open/play save/encoder MP3 files just as if they were PCM WAV files. The
application doesn't
Sorry, I was wrong about Nero CE2K.
I had this thought some time ago. I'm not a C programmer so I can't do it
myself, but, is there anyone out there who is willing to write a Windows ACM
driver incorporating LAME MPG123. I know a lot of people are using FHG
for the sole reason that it is the
IMO Xing.
Ampex wrote:
is xing or fhg better at vbr?
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there's also no good mp3 DirectMedia codec except for the
discontinued FhG pro codec version 1
When you say DirectMedia, do you mean a Windows ACM driver?. If so there
are newer versions of the FHG ACM released with some software packages like
Nero 4.0 and Cool Edit 2000.
Ross.
--
MP3 ENCODER
Actually you can extend a Win95/98 DOS window to 43 or 50 lines which then
allows scrolling up. It is in the Properties/Screen tab. It doesn't completely
help because there are more than 50 lines printed. It goes back as far as
"--lowpass freq".
I have the same problem. I have become rather
Felix von Leitner wrote:
I wonder where the myth that joint stereo would somehow adversely affect
quality comes from. Was it the web pages from the BladeEnc guy? I
don't know. Anyway, joint stereo does not make the signal and worse, it
just allows for a better bandwidth use because on
Don Melton wrote:
--qual low equivalent to highq=9
--qual normal " " " 5
--qual high " " " 2
The idea to create secondary options may be a good way to avoid confusion.
LAME is starting to take off as a quality encoder so the user
Jeremy Hall wrote:
ok, and so that -H is consistent with -V, make it do likewise.
But as Gabriel Bouvigne argued, you are limiting best quality to the lowest
number available -- 0. What do you do if a better quality mode is created?
Go negative? :)
Ross.
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MP3 ENCODER mailing list (
I would like to voice my opinion in support for 0=low 9=high. However,
reversing the numbers would make -V4 change to -V5 so the default setting
will have to reflect this.
Ross.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Greg Maxwell
Sent:
Cavallo de Cavallis wrote:
Mmm interesting, probably coz more guys are workin patchin and improving
it.
Yes but Tord is also not altering BladeEnc for quality -- only speed. He
makes sure that every update produces exactly the same MP3 file.
and looking for somethin near 160 which settings
I use CDex including Lame 3.58, BUT only at 320 bitrate,
to get the best quality.
Which are the right options ?
VBR=0? stereo mode ? ..
Best quality is PCM at ~1400kb/s :) . Using 320kb/s which is only 4:1
compression, you may as well use ADPCM format which takes
It is automatically activated with -h.
Ross.
-Original Message-
Nils Faerber
Hi!
Silly question since I obviously missed the posting:
I read that lame now can use full huffman search. But which option toggles
it? Or is it default now?
Thanks!
CU
nils
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Mark Taylor wrote:
even if filter options are specified, they will be ignored if
-k is also used.
Wait a minute. I want to disable all filters except a lowpass at 16 khz
for music on my radio station. Can you please enable the high/low pass
filters if specified.
Cheers,
Ross.
--
MP3
Hi Ivo.
I am also not part of the development team but I am interested in the progress,
mostly in VBR.
The beta versions are generally bug free. I have not found any versions that have
introduced any noticeable problems and I can recommend using the latest one (3.60)
which has had a large
Iwasa Kazmi wrote:
It makes slow 10%-20%. And the improvement of sound quality is
not so large.
But some sources (ex. apploud.wav) will be good results.
I would suggest adding the code because as I have previously mentioned, it
may be a small increase in sound quality but with many such
Sound quality is more important to me as well, and VBR should provide better sound
quality for the same filesize. I have also used the Xing encoder and it is well known
that it obtains it's speed by taking shortcuts which affect sound quality.
Each sample in music differs in complexity and so
Can someone please explain this option please.
Thanks,
Ross.
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Mathew Hendry wrote:
Can you name a compiler which will do this on normal code, i.e. without the
use of MMX/3DNow-specific functions and macros or [inline] assembler?
I'm afraid I can't.
Normally special-case code will be required to take advantage of these
enhanced instruction sets.
If
John Hayward-Warburton wrote:
It is true that some FM stations (in the UK at least) put
filters in below
30Hz to allow in-band switching tones to be used between studios.
Not that we use a filter here but I am aware that a lot of stations in the
USA and elsewhere use a highpass filter which
Thanks for the info Robert.
Am I right in thinking -X0 is the default?
Is there anyone testing the different -X settings on different music types.
Maybe the results of tests should be published somewhere for comparison?
John Hayward-Warburton has mentioned his preferences with -X4 5 in choral
(LAME v3.58)
-V6 is producing very similar average bitrates to Xings normal setting --
roughly 128kb/s. -V5 is averaging around 140kb/s. The default -V4 is
getting up towards 160kb/s which is producing somewhat larger files.
I think the default should be 6 (or at least 5) to be more consistent
Hi Robert.
Hopefully someone else can help with the Win32 compile - please :)
I think Marks suggestion of using a width option may be less confusing and
easier to use.
As far as radio is concerned, the 2 main presets would be something like
this:
1. Music/commercials:
FM50 - 15000
Thanks for adding it to the list Mark. I think your idea for low highpass options
would work very well. It would also fix the VBR problem I posted.
I can see it would benefit sound quality considerably for FM radio people who would
want a sharp cut-off at 15khz.
I am a programmer but in a
Banner looks good Chuck. I don't know about the Intel look-alike logo however. Some
people might think Lame only runs on Intel processors. Just my opinion.
Cheers,
Ross.
Chuck Zenkus wrote:
Name: lame_banner.jpg
lame_banner.jpgType: JPEG Image (image/jpeg)
Hi all. I'm new to the list. I have been using Xing's VBR up to now but I am hoping
to find Lame produces better VBR quality - but I'm not so sure.
I may be wrong but it appears Lame's VBR is not as variable when it comes to choosing
different bit-rates for each frame. I base this on the
I should have added that I am using the switches -b 32 -B 320
Ross.
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Unfortunately I'm running Windows rather than Linux. I will take that plunge once it
is more configuration user-friendly. The -V4 switch in v3.57 (without -v which
doesn't appear to be required). I noticed that prior Lame versions required -V5 to
average close to 128kb/s whereas -V4 is now
Ampex wrote:
how does xing vbr compare to lame, in quality?
I don't have the equipment to do high quality listening tests but other tests have
shown Lame to be better than the Xing encoder. I found Xing better than Fhg for
joint-stereo distortion.
Greg Maxwell wrote:
If the cutoff is
Dear programmers :)
I use MP3 for encoding borrowed CD's for a legal low-power FM radio station in New
Zealand. To save money I am not using a frequency limiter/sound compressor and I'm
allowed to use 16khz rather than the usual 15khz cut-off. I'm using Winamp plug-ins
for the compression
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