HydrogenAudio

Lossy Audio Compression => AAC => AAC - Tech => Topic started by: sana.iitkgp on 2012-11-08 11:46:36

Title: SBR Conformance test
Post by: sana.iitkgp on 2012-11-08 11:46:36
Hi,

We are developing HE-AAC-V1 decoder which decodes files with 960 frame length. For SBR conformance test, i found input files. But i couldn't find any reference output files. Input files location: ftp://mpaudconf:adif2mp4@ftp.iis.fhg.de/m.../compressedMp4/ (http://ftp://mpaudconf:adif2mp4@ftp.iis.fhg.de/mpeg4audio-conformance/compressedMp4/)
can someone let me know where can i find the reference output files or reference decoder(HE-AAC-V1 or HE-AAC-V2) which decodes 960 frame length files.

Thanks,

Sana
Title: SBR Conformance test
Post by: Garf on 2012-11-08 12:47:33
Doesn't the MPEG reference code do that?
Title: SBR Conformance test
Post by: sana.iitkgp on 2012-11-08 13:08:48
I think Reference code supports only 1024 frame length not 960 frame length.
Title: SBR Conformance test
Post by: sana.iitkgp on 2012-11-09 08:34:54
Test sequence for 960 frame length SBR conformance test is given in this document "ISO/IEC JTC 1/SC 29/WG 11/N10397". But no reference output files are given. Can anyone let me know where can i find the reference output files?
Title: SBR Conformance test
Post by: C.R.Helmrich on 2012-11-09 17:24:10
For SBR tests there are no reference output files, you have to use the "sbrconftool", see MPEG-4 part 4 (or 26). I've never used it, though, so I have no experience with it.

Chris