hello dear developers, i'm a student of computer science at the technical university of berlin. i'm on my exam and i have to implement an "perfect" hifi-internet-telephone :-) ... at this point i thought of vorbis and the ogg-vorbis codec to integrate this codec in my tool ... the questions i have are: is the source code lying on a free server to download it? is there a low-delay option in ogg-vorbis? how much is the delay at i.e. 64kbit/s quality? are there any restrictions in including the codec into my software? thanx
On Wednesday 24 November 2004 11:21, Thomas Bosch wrote:> hello dear developers, > > i'm a student of computer science at the technical university of berlin. > > i'm on my exam and i have to implement an "perfect" > hifi-internet-telephone :-) ... at this point i thought of vorbis and the > ogg-vorbis codec to integrate this codec in my tool ... > > the questions i have are: > is the source code lying on a free server to download it?Yes. http://www.xiph.org is one of many.> is there a low-delay option in ogg-vorbis?Not in the reference encoder.> how much is the delay at i.e. 64kbit/s quality?Depends on specific encoder settings. If you're using a managed-bitrate mode, about 2 seconds, I think, by default. If you're using VBR, significantly less.> are there any restrictions in including the codec into my software?Not many. Basically you just need to include the copyright notice somewhere in the software or accompanying documentation. Mike
On Tuesday 23 November 2004 06:21 pm, Thomas Bosch wrote:> hello dear developers, > > i'm a student of computer science at the technical university of berlin. > > i'm on my exam and i have to implement an "perfect" > hifi-internet-telephone :-) ... at this point i thought of vorbis and the > ogg-vorbis codec to integrate this codec in my tool ... > > the questions i have are: > is the source code lying on a free server to download it? > is there a low-delay option in ogg-vorbis? > how much is the delay at i.e. 64kbit/s quality? > are there any restrictions in including the codec into my software? > > thanxYou might also consider Speex, another open-source project from Xiph.org, which is specifically designed for low-bitrate low-latency speech compression. -- Tom Felker, <tcfelker@mtco.com> <http://vlevel.sourceforge.net> - Stop fiddling with the volume knob. Borrowing a page from the late Senator Joe McCarthy's playbook, Darl McBride claimed he had a list of Linux kernel IP violations that he would reveal at an appropriate time...