On Fri, Jul 9, 2010 at 2:18 PM, John Todd <jtodd at loligo.com> wrote:
I'm surprised you're not creating your own. ?Given the cost for the higher-end packages, it seems useful to consider in-house construction, though I suspect you have considered that already and perhaps discounted it for political reasons. ?I probably would not suggest this of a shop that doesn't have the expertise, but clearly you DO have the expertise even if just to create a specification that would be sufficient to give to an outsourced development shop.
Do free or reasonably-priced libraries exist to determine MOS/PESQ given a suitable stream of RTP or other audio format? ?That would seem to me to be the most difficult part of building this system, as other components to create suitable call volumes certainly seem to pre-exist.
JT
JT, Build vs buy... In my various ventures over the last several years I/we have already built a dizzying array of tools and test tools. Testing is not our core competency and I don't think a single person in the company is especially interested in expending resources across all departments (legal, development, accounting, etc) to coordinate the items necessary for a development project (outsourced or not) that really doesn't add significant "value" to the company. In these cases it's nice to just make a purchase and have an industry recognized test solution available. I could spend the same (or 3x more) money on developing my own equal or better test solution and that still won't have the "value" an Ixia or Empirix test report can provide (to some people). I personally would love to see us spend the time and resources on developing a highly capable open source solution. While it might be of the most benefit to the rest of the world it's not in the best interest of the company. I'm also concerned that at this scale (several thousand RTP streams with proprietary/patented codecs, full stats, MOS, PESQ, etc) we may very well have to depend on some proprietary/hardware solution anyway... -- Kristian Kielhofner http://www.astlinux.org http://blog.krisk.org http://www.star2star.com http://www.submityoursip.com http://www.voalte.com