Could you please give a little more details about it? How does this actually work?
Does this
have any compatibility issue? And why not add an option for this in the binary?
- Zia
3. "safe VBR". This mode is really CBR, but it keeps the bit
reservoir as small as possible
can somebody help me? i want to test vorbis-mp3 encoding of my
compile, where i can get vorbis files (file)?
Best regards,
Dmitrymail to: [EMAIL PROTECTED]
cut from vorbis-dev mailing list:
Michael Smith wrote:
MS Finally, I've put up copies of the
Mark Taylor wrote:
can somebody help me? i want to test vorbis-mp3 encoding of my
compile, where i can get vorbis files (file)?
Best regards,
Dmitrymail to: [EMAIL PROTECTED]
ftp.sulaco.org/pub
I just put a few .ogg files there.
I searched the archives and I don't think this has been mentioned
before.
I downloaded mp3encdemo31 [0] onto two 450Mhz pIII computers with
identical hardware, one running NT4, one running red hat linux 6.0.
The NT version seems about twice as fast, and they output different mp3s
even if
I suspected that "free format" meant that the encoder wasn't restricted to
the standard bitrate options, so if I'm right about that if an MPEG Layer3
stream was freeformat had no bit reservoir, would it be natively VBR?
In free format mode, each frame is required to have the same size
These issues do not have any effect on the quality of the mp3's,
but they do make it hard to validate a compiled version of
lame. Using different compilers or just different
optimizations or OS's will produce different results.
This is why LAME has the "--nores" option.
It will disable
Hi all,
I have tried to compile LAME 3.70 using the Watcom compiler
(host+target was OS/2). Using highest optimization, there seems
to be some trouble with the pow function. I have used only
time optimization (not fastest possible code). There remain some
errors in pow inside the
The tonality is used for the spreading function. The more noiselike
a signal, the more masking it generates.
Isn't it the other way around? More tonal - more masking?
Ciao,
Segher
If you believe the psymodels in the ISO docs, it appears
that more noise like - more masking.
In
I am not major in psychoacoustic effect but I am wondering the way
LAME's(and ISO dist10's) psychoacoustic noise threshold calculation.
it is calculated by the way like this.
E(i) : energy of bark i
T(i) : threshold of bark i
R(i) : ratio of bark i
E'(i) : energy of band(scalefactor
WinAmp 2.63 has been released... I didn't notice the bug with the sweep test.
So, it seems that they have finally fixed it! Please check for yourselves and
confirm. Thanks.
- Zia
--
MP3 ENCODER mailing list ( http://geek.rcc.se/mp3encoder/ )
Mark Taylor schrieb am Fre, 09 Jun 2000:
This bitstreams produced by this mode are just like other
VBR streams, so there should be no compatibility problems.
To explain how this works, take a 128kbs CBR for example.
In that case, LAME allocated a base amount of
bits for each frame. This
The Safe-VBR mode is more a constant rate encoding than a variable rate
encoding. I made (not in CVS) a switch allowing to specify a target
bitrate with --abr 157 and noticed that 157 kbits would be reached more
often than not. OK that fatboy sample needed a lot more than the target
bitrate
WinAmp 2.63 has been released... I didn't notice the bug with the sweep test.
So, it seems that they have finally fixed it! Please check for yourselves and
confirm. Thanks.
- Zia
I just downloaded WinAmp 2.64, and decoded both sweep.wav and 100only.wav
(from
Hi all,
Just a quick patch to quantize-pvt, which should avoid problems if the hack
is enabled on non-x86 systems. ROUNDFAC was being set up incorrectly for
quantize_xrpow_ISO.
diff -r1.120 quantize-pvt.c
1178,1179c1178,1184
# define QUANTFAC(rx) adj43[rx]
# define ROUNDFAC
This is a bug in the tables - that first line should be a 0 3
instead of 0 2. I have just fixed this, but it should have very
little effect on the output.
Ok, nice that we found that one then. ;))
And I dont think this could cause any crashes though. Can you
try adding a check in that loop
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