Re: [MP3 ENCODER] definition of kbps

2000-04-19 Thread Taupter
It seems to be quite common to use the prefix "K" to refer to multiples of 1024, and "k" for mutliples of 1000, but I don't know if this is formalised anywhere. Similarly "B" for bytes and "b" for bits... 64KB of memory vs. 64kbps MP3. K is used for both multiples of 1000 and 1024. 1024 is

Re: [MP3 ENCODER] Decoder quality comparison [quite detailed -sorryifrepeat]

2000-04-19 Thread David Balazic
David Balazic wrote: Matthew Lloyd wrote: [ big snip ] About the differences between Nitrane and other: Did you try to compare the sound to the original ? Maybe you could figure out that way where that spectral components should be. And you forgot to test mpg123 ! ( and xaudio

Re: [MP3 ENCODER] definition of kbps

2000-04-19 Thread Mathew Hendry
From: "Taupter" [EMAIL PROTECTED] [...] the right case for multipliers is uppercase (K, M), [...] ITYM all multipliers except k - kHz, km, etc. -- Mat. -- MP3 ENCODER mailing list ( http://geek.rcc.se/mp3encoder/ )

Re: [MP3 ENCODER] Decoder quality comparison [quite detailed - sorryifrepeat]

2000-04-19 Thread Naoki Shibata
Hi, all. I also tested differences of outputs from some decoders. Output of mpg123 is almost identical to fraunhofer's, but there are some mp3 files whose outputs have quite large difference. I made a mp3 file by adding a patch to lame so that lame randomly selects block type, and

Re: [MP3 ENCODER] definition of kbps

2000-04-19 Thread Taupter
Mathew Hendry wrote: From: "Taupter" [EMAIL PROTECTED] [...] the right case for multipliers is uppercase (K, M), [...] ITYM all multipliers except k - kHz, km, etc. No. Surely KHz, Km, et cetera el al. Taupter -- MP3 ENCODER mailing list ( http://geek.rcc.se/mp3encoder/ )

Re: [MP3 ENCODER] definition of kbps

2000-04-19 Thread David Balazic
Taupter wrote: Mathew Hendry wrote: From: "Taupter" [EMAIL PROTECTED] [...] the right case for multipliers is uppercase (K, M), [...] ITYM all multipliers except k - kHz, km, etc. No. Surely KHz, Km, et cetera el al. You're joking, right ? kilo is 'k' , at least by SI ( the

RE: [MP3 ENCODER] definition of kbps

2000-04-19 Thread Mathew Hendry
From: Taupter [mailto:[EMAIL PROTECTED]] Mathew Hendry wrote: From: "Taupter" [EMAIL PROTECTED] [...] the right case for multipliers is uppercase (K, M), [...] ITYM all multipliers except k - kHz, km, etc. No. Surely KHz, Km, et cetera el al. Nope, however sensible that

Re: [MP3 ENCODER] definition of kbps

2000-04-19 Thread Zia Mazhar
Taupter wrote: The term Kbps to represent data transfer speed in bits is absolutely wrong, as bit is "bit", and Kbps is K (1000 or 1024) * byte * p (?) * s (second). The right way could be Kbit/s. The term Kbps is widely used, but it not a "canonical" representation. Are you _sure_ that

Re: [MP3 ENCODER] definition of kbps

2000-04-19 Thread David Balazic
Zia Mazhar wrote: Taupter wrote: The term Kbps to represent data transfer speed in bits is absolutely wrong, as bit is "bit", and Kbps is K (1000 or 1024) * byte * p (?) * s (second). The right way could be Kbit/s. The term Kbps is widely used, but it not a "canonical"

Re: [MP3 ENCODER] definition of kbps

2000-04-19 Thread Christian Schepke
About kbps kbit/s and more : ftp://ftp.informatik.uni-erlangen.de/pub/doc/ISO/information-units Perhaps we can now end this discussion and accept kbps AND kbit/s as understandable units for '10^3bit per second' and go on to other more LAME-related questions ... A+ Christian -- MP3 ENCODER

Re: [MP3 ENCODER] definition of kbps

2000-04-19 Thread Meister Roger
You can take the "p" as 1/x. Here x is s, so kbps and kbit/s means the same. Yes, and could also be written : kbs (exponent: minus one) From rules used in biochemistry. (same rules?) But in a book or Word, not in a mail Roger - -- MP3 ENCODER mailing list (

[MP3 ENCODER] highpass and lowpass

2000-04-19 Thread Gabriel Bouvigne
Using Lame 3.70 I saw that it accepts a strange thing: using an highpass freq higher than the lowpass one Of course the result is pure silent. Regards, -- Gabriel Bouvigne - France www.mp3-tech.org -- MP3 ENCODER mailing list ( http://geek.rcc.se/mp3encoder/ )

[MP3 ENCODER] informative message / VBR

2000-04-19 Thread Peter Olufsen
With the 3.80n-binary i get a lot of informative message: drain_pre/post: wasting bits= especially with -V 2 and -V 1 combined with -B 320 or -V 0 alone, is this important or is it just a message that hasent been removed ? Peter

RE: [MP3 ENCODER] definition of kbps

2000-04-19 Thread Scott Manley
It's definately not frmalised - think about the next step up - Mega which is prefixed by a capital M, while the lower case m represents the prefix 'mili' Scott Manley (aka Szyzyg) /-- _@/ Mail -\ ___ _ _ __ __ _ | Armagh

Re: [MP3 ENCODER] highpass and lowpass

2000-04-19 Thread Pierre Hugonnet
Gabriel Bouvigne wrote: Using Lame 3.70 I saw that it accepts a strange thing: using an highpass freq higher than the lowpass one Of course the result is pure silent. ...a good check that filters work OK :-) Pierre Hugonnet -- MP3 ENCODER mailing list ( http://geek.rcc.se/mp3encoder/ )

[MP3 ENCODER] side channel starving

2000-04-19 Thread Segher Boessenkool
Hi all, Does lame implement side channel starving? If not, I'll volunteer :-) Ciao, Segher Boessenkool -- MP3 ENCODER mailing list ( http://geek.rcc.se/mp3encoder/ )

RE: [MP3 ENCODER] Decoder quality comparison [quite detailed - sorry if repeat]

2000-04-19 Thread Alex Broadhead
Howdy All, I recently finished completely overhauling the ISO 'dist10' LSF decoder to extract a layer-III only player for work. In the process, I discovered a few bugs/inconsistencies in/between the 'dist10' distribution and ISO/IEC 11172-3 and 13818-3. I don't know if they would account for

Re: [MP3 ENCODER] vbr problems with mpg123?

2000-04-19 Thread Mark Taylor
I was pretty excited to get lame 3.70 since the older releases crashed my box. :) I encoded an album with lame -v -h -p -b 128 (using the notlame binary) and everything went well until I tried to play it back with mpg123... Here's what I got: Playing MPEG stream from

Re: [MP3 ENCODER] Decoder quality comparison [quite detailed - sorry if repeat]

2000-04-19 Thread Mark Taylor
Howdy All, I recently finished completely overhauling the ISO 'dist10' LSF decoder to extract a layer-III only player for work. In the process, I discovered a few bugs/inconsistencies in/between the 'dist10' distribution and ISO/IEC 11172-3 and 13818-3. I don't know if they would

Re: [MP3 ENCODER] side channel starving

2000-04-19 Thread Mark Taylor
Hi all, Does lame implement side channel starving? If not, I'll volunteer :-) Ciao, Segher Boessenkool LAME has crude algorithm which allocates bits based on the energy contained in the side channel vs. mid channel. It definatly needs work: I have some test cases where LAME

Re: [MP3 ENCODER] informative message / VBR

2000-04-19 Thread Mark Taylor
With the 3.80n-binary i get a lot of " informative message: drain_pre/post: wasting bits=" especially with -V 2 and -V 1 combined with -B 320 or -V 0 alone, is this important or is it just a message that hasent been removed ? Peter It just hasn't been removed. It tells how many

RE: [MP3 ENCODER] Decoder quality comparison [quite detailed - so rry if repeat]

2000-04-19 Thread Alex Broadhead
Thanks for the summary, Mark. I forgot to mention the 330/332 bug, which I had independently located and saw discussed here earlier. I looked at the ISO code for the Huffman quadruples, and it looks OK. There is very little scfsi related code, and it looks OK, though I don't think I've ever

Re: [MP3 ENCODER] informative message / VBR

2000-04-19 Thread Robert Hegemann
Mark Taylor schrieb am Don, 20 Apr 2000: With the 3.80n-binary i get a lot of " informative message: drain_pre/post: wasting bits=" especially with -V 2 and -V 1 combined with -B 320 or -V 0 alone, is this important or is it just a message that hasent been removed ? Peter