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Discussion Groups | Audio Signal Processing
Technical discussions related to Audio Signal Processing (digital effects, acoustics, noise reduction, musical signal processing, etc).
Search Results for "mpeg"
MPEG-2 layer-3 multichannel decoder
pai_raviin - Sep 1 2005
Hi,
I am trying to implement the MPEG-2 layer-3 multichannel decoder,
backward compatible with MPEG-1 layer-3.
I am new to this work and I don't have any source code to implem... 
MPEG-2 AAC File format
kinj...@gmail.com - Feb 14 2006
Hi everybody,
I am working on MPEG-2 AAC Encoder.
I want info regarding the file format for the MPEG-2 AAC file.
If someone is having related document, please send it to me.
tha... [Wanted] MPEG-2 Audio Source Code [2 Articles]
m_0_0_m - May 6 2002
Hi~ all
I would like to implement MPEG Audio Layer II Decoder
on 16 bit fixed point DSP.
I've found the floating point C source code (dist.10)
from univ. Hannover.
But, It see... Psychoacoustics in MPEG-4 AAC. [6 Articles]
Ramya Desai - Jul 14 2003
Hi all,
A good day to all.
I want to know about psychoacoustic models in MPEG-4 AAC. If any of you know links to papers..please forward me. I will be thankful to you.
Regard... MPEG Psychoacoustic Model -2 [2 Articles]
#ARIJIT BISWAS# - Jun 22 2006
Dear List:
I want to do some fast experiments with the MPEG Psychoacoustic Model - 2. Is there any source from where I can download the routines?
I just need a simple program... [Q]MPEG Audio decoder's quality.... [2 Articles]
Park, Sam-Yook - Sep 27 2000
Hi.
What's the main factor to make different MPEG Audio decoder's quality?
(Especially, for MPEG-1 audio)
I had read about the benchmark of mpeg ... [Wanted] MPEG Audio Layer II Source Code
m_0_0_m - Mar 24 2002
Hi~ all
I would like to implement MPEG Audio Layer II Decoder
on 16 bit fixed point DSP.
(specifically on OAK/TeakLite DSP Board)
The MPEG Audio Layer II decoder would be us... MPEG-2/4 AAC decoder! [2 Articles]
ajit gupta - Oct 9 2003
Hello All,
I need a favor. Can somebody tell me about the
companies who are having MPEG-2/4 AAC decoder and
among all of them who is having the best decoder?
If somebody has... MPEG-4 AAC LC Books [2 Articles]
ramya_desai - Jun 25 2003
Hai all,
I am new to this group. I have to work on MPEG-4 AAC LC coding.
May I know what books are available on this topic (Preferably
available in India). I will be thankful t... Fixed Point MPEG-4 AAC Implementation.
Ramya Desai - Dec 16 2003
Hi all,
I have some codes for MPEG-4 AAC implementation. But
they are floating point implementations.
Is there any fixed point code available for MPEG-4 AAC
for both encoder a... MP3 pointers
Syed Moinuddin - Sep 6 2000
Hi all,
There are two sites where you can find info about MP3
offical site:-> www.cselt.it/mpeg/
Lots of Links -> www.m... MPEG-4 AAC+ CODEC Reference Software.
Ramya Desai - Dec 9 2003
Hai All,
Is there any reference code for MPEG-4 AAC+ Encoder
and decoder ?.
I came to know that even ISO has not released any
reference code for AAC+ (SBR). So is there any cha... MPEG-4 multichannel audio test bit-streams [3 Articles]
#ARIJIT BISWAS# - Nov 28 2003
Dear List:
Any idea where I can locate MPEG-4 Multichannel Audio test bit-streams?
Regards,
~Arijit
... Mp3-joint stereo [2 Articles]
gbmk_2004 - Jun 30 2005
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 a... MPEG-4 AAC LC decoder reference code!
ajit gupta - Nov 5 2003
Hello,
I need MPEG-4 AAC LC decoder reference code. Can
somebody tell me from where and how can I get this
one? I tried on ISO site, but not able to reach the
correct locatio... mpeg-filter bank concepts ????
sathi bhonsle - May 20 2004
hi all,
can anyone suggest me about any good site/ material about filter bank concept in mpeg audio and its details.
thank u
... Regarding MPEG-4 HE-AAC conformance testing
gvgrao_spl - Nov 8 2005
Hi All,
I am presently working on MPEG-4 HE-AAC.
I faced problem with _twi(Twiddle)series,while i am doing the
conformance testing.
The vector is showing that its of AAC MAIN p... MPEG-4 BSAC Documentation & Free source implementation
Ramya Desai - Dec 19 2003
Hi all,
I want to work on MPEG-4 BSAC.
I searched the web for documentation, but what I got
was very little.
Is there any source of documentation for BSAC along
with free sour... Re: Mp3 Algorithm [11 Articles]
alexander lerch - Feb 16 2001
Hi!
"Jacobs, Ben" wrote:
> > Where can I find Mp3 compression algorithms ?
>
> What do you are looking for: information or source code?
>
> ... Re: aac
alexander lerch - Dec 12 2001
Hello,
akash damodar sureka wrote:
>
> hi all,
>
> i am working on advance audio coding project.
Re: AAC listening test
alexander lerch - Jan 22 2002
Hi,
there are performance bitstreams and a tool that checks if the
decoder output is valid.
Links to some reference bitstreams can be found (for
example(?)) here:
http://www.... Info needed mpeg2 TS demux
Pradeep SN - Jun 26 2003
Hi,
Can any one help me out in finding free public domain
C source code for MPEG-2 Transport Stream (TS)
depacketization/Demultiplexer ?
Thnaks in advance
Pradeep
... MPEG-2 AAC Low Delay (Windowing Technique)
myna...@gmail.com - Oct 24 2005
Hi all,
I am Mynampati Kuldeep Kumar. I am working on MPEG-2 AAC Low Delay Filter Bank. In this it has an algorithmic delay of 20 ms. The reason is as follows
A forward and In... MPEG4 AAC LC Decoder
deepa_r06 - Jun 13 2005
Hi All,
I am in the process of porting the MPEG 4 to CCS(c55x). I am
facing problems with the wrapper code. Can anybody help me? The decoder
decodes only 2 frames. Is it... MPEG 2/4 -AAC Decoder
UDAY Ammanagi - Mar 23 2006
Hi friends,
.. i ve just begun working on MPEG2-AAC Decoder and will be stepping
into MPEG4-AAC Decoder later on. so if there is anyone out there on a
similair task - g... help on AAC papers on AES
Ding, Ke - Jan 9 2006
Hi all
I'm new member in this group and currently doing the AAC LC encoder.
Since I am not a member of AES, could you share the following papers
with me if you have? Also I wa... help on AAC papers on AES
Ding, Ke - Jan 9 2006
Hi all
I\'m new member in this group and currently doing the AAC LC encoder.
Since I am not a member of AES, could you share the following papers
with me if you have? Also I w... Regarding MP3 frame format
kiran kumar - Mar 22 2006
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... Mpeg 2 AAC fixed point code
"vinayhaveri.desai" - Jan 24 2008
Hi friends
Could anyone tell me where the Fixed point Mpeg2 AAC decoder c code is
available.
Thanks
Vinay
... a MPEG2 question
ZiP HE - Nov 28 2000
Dear all,
I am a newcomer in DSP, and now working on MPEG-2 Audio Encoder. In ISO11172-3 encoding algorithms(Layer II and Layer III), before FFT transfer, there are 1152 sample... Query on DeQuantization of MPEG-4 AAC Decoder [3 Articles]
Siddharth Nag - Apr 28 2005
Hi Folks!
Just needed some information on some of the schemes that
are used to implement DeQuantization of audio samples.
The scheme that I know is DeQuantization ... Low Delay Filter bank
myna...@gmail.com - Sep 16 2005
Hi all,
I am Mynampati Kuldeep.I am doing a thesis on Low Delay Filter Banks.
In MPEG-4 ER AAC, due algorithmic procedure a delay of 20 ms is present.So,this delay is to be ... Re: std method to check the quality of song
alexander lerch - Aug 20 2002
Hi,
For conformance bitstreams, you may look at:
http://www.tnt.uni-hannover.de/project/mpeg/audio/ftp/.
If you search for critical encoder test sequences, you may go
to t... MPEG 2 AAC codec
RONAK BHALODIA - Jan 25 2006
Hi,
I want to know the working of bit alocation block in the AAC codec.
Currently its allocate the bits depending upon the SMR it got from the
phychoaucostic block. But we can a... ??,?: a MPEG2 question [2 Articles]
ZiP HE - Nov 29 2000
Hi, rsv,
Thank you for your kind reply. can you tell me where I can find the hanning window equation? ISO11172-3 didnot offer it.
regards
ZiP
-----????-----
???: Prasad... need scalefactor info in MPEG-1audio layer 2
Vandanapu, Naveen - Jan 9 2005
All,
In MPEG-1
audio, there is a difference between layer I and II algorithms in terms of
encoding scale factors. In layer II, the scale factors for t... filter bank : design n application [2 Articles]
Sanjay S - Feb 2 2005
I'm currently doing my major project on Non-uniform filter bank theory and application. I need your help and suggestions based the design of a non-uniform cosine-modulated filt... Regarding MDCT
myna...@gmail.com - Nov 27 2005
Hi all,
I would like to ask you regarding MDCT specially ,as we know MDCT is
DCT (type-4) with 50% overlap on consective block applied in MPEG-4 AAC
low delay.I could ... ??,?: ??,?: a MPEG2 question
ZiP HE - Nov 30 2000
Hi, rsv,
Thank you for your information, I have got the equation from MATLAB11. I still have some problems in my MPEG DSP solution, which is the subband filter cooefficient C... 3-bit ADPCM playback
Meenakshi Matai - Oct 12 2004
Hello,
I am looking for a plugin that can playback G.723 3-bit ADPCM encoded
data. I know that the standard .wav file header can take the following
information:
*Code* *De...