Displaying 10 results from an estimated 10 matches for "externet".
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2001 Aug 23
3
RC2 vs. beta4 (test)
Hi!
I would like to share with you an interesting test result.
I re-encoded a song 10 times (the 2. made from the 1.,
the 3. made from the 2.,... the 10. made from the 9.),
with a beta4 (CVS 20010620)
and with an RC2 (CVS 20010817) library version,
256 kbit/s mode, channel coupling disabled at RC2.
The beta4 is very good at the 10. encoding too,
but the RC2 has some interesting quality bugs.
So,
2001 Jan 17
0
bitrate scaling by freq / quality bug ? / comments
Hi again!
I have some other suggestions/modifications.
1. Bitrate scaling by frequency in vorbis_encode_init:
bpch=(long)((float)nominal_bitrate/(float)channels*44100.0f/(float)rate);
With this modification, if we use -b128 at 22khz files, the OGG file
will be 128kbit/s, not 64kbit/s ...
2. Probable quality bug:
I tested some floating point constants (recalculated them (see below)
and encoded
2000 Dec 25
2
Modification requests / question
Hello!
1.
You should modify the 'vorbis_ftoi(f)' for the undefinied OS/compiler
in the 'os.h' on this way:
old:
static int vorbis_ftoi(double f){
return (int)(f+.5);
}
new:
#define vorbis_ftoi(f) ((int)(f+.5f))
Because in some cases we don't use this function, and the compiler writes
many error messages.
2. Could you write a frequency and bitrate independent
2001 Feb 01
1
minor psy.c modifications
Hello!
Some minor bugfixes...
source: psy.c
function: _vp_psy_init
1. '-' or '+' in this line?
maxoc=toOC((n*.5f - .25f)*rate/n)*(1<<(p->shiftoc+1))+.5f;
maxoc=toOC((n*.5f + .25f)*rate/n)*(1<<(p->shiftoc+1))+.5f;
2. I know: sizeof(float *) and sizeof(float) are 4 bytes long, but...
old lines:
p->noisemedian=_ogg_malloc(n*sizeof(float *));
2000 Nov 29
2
comparison of beta2 and beta3 encoder quality
Hi,
I encoded some songs into 350 kbit/s with beta2 and beta3 too,
and I don't know why, but it seems the b2 sounds better (makes a
better quality ogg file)...
The b2 contains more the b3 contains less high sounds.
And with the b3, the size of file is smaller with 4-5%...
Do you know this problem, or do you think so, that the sound quality
is good (or better in the b3) ??
Please be carefull
2001 Oct 12
2
FLOOR_fromdB_LOOKUP
Hello,
You know, I always worry about the precision
and the float constants... and there is a large
lookup table in the floor1.c ... and I figure out
a way to keep the code size and speed, but
to improve the precision at this lookup table.
(the difference is small, but audible)
Here is the modifications in the floor1.c:
tatic unsigned long FLOOR_fromdB_LOOKUP[256]={
2001 Jan 13
4
Oggenc bug & other
Hello!
I would like to send some bugs and bugfix(es):
1. There is an encoding bug in the beta 3 (downloaded exe from the
vorbis.com) and in the latest CVS (jan. 10.) too (compiled with
MSVC 6.0):
If the file contains some non-audible noise at the begin or at the end,
the encoder/decoder makes some large clips in the output file,
if the bitrate is 350kbit/s . If I use 256kbit/s or
2000 Dec 10
2
Oggenc ideas / source and request
Hello everybody,
I've put some functions/modifications into the Ogg Vorbis encoder source.
(The new functions are in the first 500 lines of the oggenc.c, some
definitions
are in the oggenc.h)
I hope, you can use it.
Here is the full source (same source on 3 locations):
http://www.geocities.com/mpxplay/oggenc.zip
http://www.tar.hu/mpxplay/oggenc.zip
http://www.extra.hu/galileog/oggenc.zip
2000 Dec 11
2
Replay to the 'oggenc ideas/source and request' replays
Dear Developer Team (Monty/Michael Smith/and others),
It seems you get angry for me, but I don't understand why.
I don't want to dispute with you, but maybe I forgot to say some things...
Here they are:
1. My program (clone) is not a finalized, and NOT A RELEASED (public)
program. This is just a test, I wrote it to myself,
to the (sound quality) comparsion of MP3 and OGG.
2.
2001 May 01
1
encoder observation
Hello!
First of all a question:
When you make the encoder tables (ie: mode_e.h)
do you use the mapping0_forward function?
Because you made the encoder tables, and after this
you did a minor correction in the final beta4 ...
(this correction was:
additional[0]=fabs(additional[0]*scale);
in the mapping0_forward function)
(I see this was a bug, and the modification
was correct, but this correction