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It finally happened - we have acheived "First Noise"!

Find below a copy of the email sent on 26 April 1999 to announce this event.

Thanks to everyone who helped us get there, especially Robert Jongbloed, the silent force behind OpenH323.

Craig Southeren, April 28 1999

To all,

I though that everyone associated with OpenH323 might be interested in hearing that a new significant milestone was reached today.

Today, at approximately 3:00pm AEST, the OpenH323 source code received, decoded and played an audio stream in real-time via an H.323 session from a Windows PC running NetMeeting. This long-awaited event has been denoted "First Noise", and it's accomplishment shows that OpenH323 can now start to perform useful work in the H.323 protocol arena.

The codec used was uLaw G.711 at 64Kbps. The receiving machine was Windows PC running Windows 98 with a standard Soundblaster 16 audio card. The quality of the audio was excellent with an almost imperceptible delay (as would be expected from a G.711 codec!)

The next step is to get this code operating on a Linux PC, and then to complete the RTP/RTCP encoding process so that OpenH323 can also send audio information.

In addition to the G.711 codec, we are also intending to add support for the GSM 06.10 13kbps audio codec. This codec is unencumbered by patent or licensing restrictions, and numerous software implementations exist for it. Although it is not supported by NetMeeting, various other programs such as VoxPhone do implement this codec. If anyone has any additional unencumbered codecs for consideration then we would like to hear from them.

The new version of the OpenH323 source code with the "First Noise" code will be released soon.

Thanks to all who have supported us so far - we look forward to working with you soon.

Regards,

Craig Southeren