Fernando Alberto Marengo Rodriguez
2012-Jul-06 20:01 UTC
[ogg-dev] Request: temporal windows
Dear list, I am looking for different window functions used in perceptual audio coding. In the mp3 format, these windows overlap with each other, but I haven't found any information about their mathematical expression, nor their numerical values (see attached document). Which temporal windows are used in ogg audio coding? Thank you very much in advance. Kind regards, ------ Fernando A. Marengo Rodriguez, PhD Acoustics and Electroacoustics Laboratory School of Electronic Engineering Faculty of Sciences, Engineering and Surveying National University of Rosario Rosario, Argentina www.codecdigital.com.ar -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/ogg-dev/attachments/20120706/fc3e45c5/attachment.htm -------------- next part -------------- A non-text attachment was scrubbed... Name: TemporalWindowsMP3.docx Type: application/vnd.openxmlformats-officedocument.wordprocessingml.document Size: 11334 bytes Desc: not available Url : http://lists.xiph.org/pipermail/ogg-dev/attachments/20120706/fc3e45c5/attachment.bin
On Fri, Jul 6, 2012 at 4:01 PM, Fernando Alberto Marengo Rodriguez <fmarengorodriguez at yahoo.com.ar> wrote:> Dear list, > I am looking for different window functions used in perceptual audio coding. > In the mp3 format, these windows overlap with each other, but I haven't > found any information about their mathematical expression, nor their > numerical values (see attached document). Which temporal windows are used in > ogg audio coding? > Thank you very much in advance. > Kind regards,http://en.wikipedia.org/wiki/Modified_discrete_cosine_transform#Window_functions https://ccrma.stanford.edu/~jos/sasp/Choice_WOLA_Window.html