Mp3 encoder

Started by akash damodar sureka in Audio Signal Processing16 years ago 1 reply

Hi all, do u know which is the best MP3 encoder, i mean LAME, Thomson or Fraunhofer??? How is the testing of MP3 encoder carried out since no...

Hi all, do u know which is the best MP3 encoder, i mean LAME, Thomson or Fraunhofer??? How is the testing of MP3 encoder carried out since no standard test vectors are available??? what are the songs or teststreams that are generally used for MP3 encoder testing???? Can somebody send me those or the URLs of those streams???? What are the modules that has to be tested thoroughly ??? Since


C code for psycho acoustic model in mp3 encoder

Started by tulasi syam in Audio Signal Processing12 years ago

hi all, i am working on mp3 encoder. im doing project on implementation of FFT and psychoacoustic models for mp3 encoder in C language. i...

hi all, i am working on mp3 encoder. im doing project on implementation of FFT and psychoacoustic models for mp3 encoder in C language. i want help regarding finding the c codes for these algorithms.. thanks in advance syam B.Tech,MS


Require IMDCT and Synthesis Polyphase filter algorithms.

Started by Rhishikesh Agashe in Audio Signal Processing14 years ago

Hi, I am working on Mp3 Decoder. I am trying to find an optimized implementation of IMDCT algorithm and Synthesis Polyphase filter algorithm...

Hi, I am working on Mp3 Decoder. I am trying to find an optimized implementation of IMDCT algorithm and Synthesis Polyphase filter algorithm for Mp3 Decoder. The reference code that I have started with, has been downloaded from http://www.mp3-tech.org/ Can somebody help me out in this regard? Regards, Rhishikesh Agashe.


Re: : RE: Re: MP3 coding --recommended books

Started by Sigmund Gudvangen in Audio Signal Processing16 years ago

Le Mardi 23 Septembre 2003 06:29, hemanth kumar ?crivit : > Hi Manju, > > We too have gone thru the same pain, trying our luck with all sorts...

Le Mardi 23 Septembre 2003 06:29, hemanth kumar ?crivit : > Hi Manju, > > We too have gone thru the same pain, trying our luck with all sorts of > search engines. this was the best link we found. http://www.mp3-tech.org/ > > > hemanth kumar > > zhumin@zhum... wrote: > > You could down the paper from the URL > "


MP3 coding --recommended books

Started by Manjunath in Audio Signal Processing16 years ago 4 replies

Hi all, Could you please advice me regarding which book to buy for mp3 algorithms.Preferable it should contain description of the algorithm,...

Hi all, Could you please advice me regarding which book to buy for mp3 algorithms.Preferable it should contain description of the algorithm, sorce code etc. Thanking you, Manjunath


Mp3 Algorithm

Started by Jacobs, Ben in Audio Signal Processing19 years ago 15 replies

Hi Where can I find Mp3 compression algorithms ? Ben

Hi Where can I find Mp3 compression algorithms ? Ben


Input/Output to MP3 Decoder on ADSP-218x EZ-ICE/KIT

Started by bhagawan reddy in Audio Signal Processing16 years ago

Hi, I am working on Hardware Interfacing of MP3 Decoder code on ADSP-218x EZ-KIT/ICE. MP3 Decoder code was succesfully tested on...

Hi, I am working on Hardware Interfacing of MP3 Decoder code on ADSP-218x EZ-KIT/ICE. MP3 Decoder code was succesfully tested on ADSP -218x Simulator .File Input/Output was through Streams (Settings). But the streams option will be disabled when the target is EZ-ICE. Can any one suggest me a testing methodology for MP3 Decoder code on EZ-ICE/KIT? (other than Overlays) Th


mp3 coding

Started by hemanth kumar in Audio Signal Processing16 years ago 1 reply

i am working on a Mp3 codec,can anyone tell me how the bitstream contains 2 granules of data while the MDCT block reduces the number to half...

i am working on a Mp3 codec,can anyone tell me how the bitstream contains 2 granules of data while the MDCT block reduces the number to half the number of the in values.


Re: : RE: Re: MP3 coding --recommended books

Started by hemanth kumar in Audio Signal Processing16 years ago

Hi Manju,   We too have gone thru the same pain, trying our luck with all sorts of search engines. this was the best link we found. ...

Hi Manju,   We too have gone thru the same pain, trying our luck with all sorts of search engines. this was the best link we found. http://www.mp3-tech.org/     hemanth kumar z...@postel.com.cn wrote:


: RE: Re: MP3 coding --recommended books

Started by zhum...@postel.com.cn in Audio Signal Processing16 years ago

You could down the paper from the URL " http://www.macman.net/files/mp3/mpegaud.pdf " Good Luck! Min "Nalin...

You could down the paper from the URL " http://www.macman.net/files/mp3/mpegaud.pdf " Good Luck! Min "Nalin Pithwa"


mp3 file with ID3v2.2.0 tag

Started by pk_s...@rediffmail.com in Audio Signal Processing15 years ago

Hi all, I am working on a project related to ID3 tags. Can anyone tell me from where to get mp3 files with old version of ID3v2 tag? I mean...

Hi all, I am working on a project related to ID3 tags. Can anyone tell me from where to get mp3 files with old version of ID3v2 tag? I mean ID3v2.2.0 or earlier Thanks in advance Satheesh


novice question: mp3 players

Started by rahul saxena in Audio Signal Processing16 years ago

hello group members, i want to make a software in MATLAB or C to play mp3 files. Since I am new to this field, it would be very nice if...

hello group members, i want to make a software in MATLAB or C to play mp3 files. Since I am new to this field, it would be very nice if somebody could tell me as to what things do i need to study to finally be successful in making the software. If possible please send some useful links also. If possible please send some links to sites where i can get tutorials on audio drivers too. Rahul


Regarding MP3 frame format

Started by kiran kumar in Audio Signal Processing14 years ago

hello , i am doing my project in mpeg-1 audio layer-3 audio decoder using arm7. iam facing problem in understanding the bitfield...

hello , i am doing my project in mpeg-1 audio layer-3 audio decoder using arm7. iam facing problem in understanding the bitfield information of sideinformation in mp3 frame format. plz help in understanding. thanking you, yours s...


Please help how to handle Bit Reserviour in MP3

Started by RAMESH NAIDU in Audio Signal Processing13 years ago

HI All I am working mp3 audio decoder and i am confused how to handle Bit Reserviour when main_data!=0. For how many frames does main_data...

HI All I am working mp3 audio decoder and i am confused how to handle Bit Reserviour when main_data!=0. For how many frames does main_data of one frame can spread typically? Finally What is the typical size of i/p buffer? Please help... Advance thanks.... ramesh, g...@yahoo.co.in


std method to check the quality of song

Started by raghuram hindupur in Audio Signal Processing17 years ago 1 reply

Hi all ,Can any one tell me in which site are mp3 test bits i.e 16 bit wav samples with sampling frequency at 44100 Hzare available ???Also...

Hi all ,Can any one tell me in which site are mp3 test bits i.e 16 bit wav samples with sampling frequency at 44100 Hzare available ???Also are there any Mp3 analyzers available ?I found one named ENCSPOT,But it decides quality of an encoded song with reference to bitrate, rather thanAnalysis filterbank or psychoacoustic model.. IS there any tool similar to THOMPSON ANALYZER( VIDEO) in a


codecs and file format

Started by kaus...@yahoo.com in Audio Signal Processing11 years ago 5 replies

Hello everybody, -I often get confused between an audio codec and an audio file format. Doesnt a .mp3 extension necessarily mean that the file...

Hello everybody, -I often get confused between an audio codec and an audio file format. Doesnt a .mp3 extension necessarily mean that the file has been encoded using 'mp3' encoding format? -Another question, can you please point out the basic differences between how decoding of an audio file is carried out in an audio player (like an ipod) and an audio player application (like windows media p...


appearance of new frequencies in the mp3 output

Started by shameedsait in Audio Signal Processing13 years ago

Hi all, I low-pass filtered a wav file so that there was no component above 16 kHz. But the mp3 file file I got after encoding the low-pass...

Hi all, I low-pass filtered a wav file so that there was no component above 16 kHz. But the mp3 file file I got after encoding the low-pass filtered wav file using lame encoder had components well above 16 kHz appearing intermittently. What could be the reason for this? (windowing??? MDCT???)


Mp3-joint stereo

Started by gbmk_2004 in Audio Signal Processing14 years ago 1 reply

Hi , Can any body helpme in the following . 1. In one Mp3 file, both stereo and joint stereo modes are possible or not? i.e. some frames...

Hi , Can any body helpme in the following . 1. In one Mp3 file, both stereo and joint stereo modes are possible or not? i.e. some frames encoded as stereo and some frames as joint stereo. 2. is it same for both MPEG-1, MPEG-2 layerIII? Thanks Mallikarjun


MP3 Player - Need Info

Started by Daya Sagar in Audio Signal Processing15 years ago

Hi All,   My Next project/product is on MP3 (stand alone). I have not done any prod

Hi All,   My Next project/product is on MP3 (stand alone). I have not done any prod


MP3 pointers

Started by Syed Moinuddin in Audio Signal Processing19 years ago

Hi all,             There are two sites where you can find info about MP3 offical site:-> www.cselt.it/mpeg/ ...

Hi all,             There are two sites where you can find info about MP3 offical site:-> www.cselt.it/mpeg/