Forums Search for: MPEG-4
MPEG-4 AAC LC Books
inHai 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...
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 to you. Regards, RD
Psychoacoustics in MPEG-4 AAC.
inHi 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....
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. Regards, Ramya.
MPEG-4 AAC LC decoder reference code!
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...
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 location. Thanks in advance. Regards, Ajit __________________________________ Do you Yahoo!? Protect your identity with Yahoo! Mail AddressGuard http://antispam.yahoo.
MPEG-4 multichannel audio test bit-streams
inDear List: Any idea where I can locate MPEG-4 Multichannel Audio test bit-streams? Regards, ~Arijit
Dear List: Any idea where I can locate MPEG-4 Multichannel Audio test bit-streams? Regards, ~Arijit
MPEG-4 AAC+ CODEC Reference Software.
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...
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 chance to get a reference code for AAC+ ???? Thanks in Advance, Regards, Ramya.
Fixed Point MPEG-4 AAC Implementation.
Hi all, I have some codes for MPEG-4 AAC implementation. But they are floating point implementations. Is there any fixed point code available...
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 and decoder ?. If any of you have that code..plz forward to me. or send me the link to download. Regards, Ramya. __________________________________ Do you Yahoo!? Protect your identity with Yahoo! Mail AddressGua
MPEG-4 BSAC Documentation & Free source implementation
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...
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 source implementation ?. Thanks In Advance, Best Regards, Ramya. __________________________________ Do you Yahoo!? Protect your identity with Yahoo! Mail AddressGuard
Query on DeQuantization of MPEG-4 AAC Decoder
inHi Folks! Just needed some information on some of the schemes that are used to implement DeQuantization of audio samples. The...
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 using a look-up table of 8192 by storing the value of y^(4/3) in the table and using y as the index to access these values. Is it possible to eliminate the Look-up table totally without much computational
MPEG4 AAC LC Decoder
inHi 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...
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 because of cmd file? Thanx in adv, Deepa
Low Delay Filter bank
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...
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 further reduced modiying Filter banks.I would like to ask you to suggest me some Information ,or web sites or some articles regarding this. Thanking you, bye... mynampati kuldeep kumar
Regarding MPEG-4 HE-AAC conformance testing
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...
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 profile.But my decoder supports only AAC LC profile. So,is it necessary to test my decoder with _twi vectors? And also which series of vectors are sufficient to test Sbr part. If any one knows about this please mail
Regarding MDCT
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...
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 not get proper understanding how it works internally. Example: MDCT =[ DCT(type-4)* TDAC * Window ] Cosider for example we have MDCT of 2n inputs and n outputs and this n output is equal to DCT (type-4) i