| US 7,466,827 B2 | ||
| System and method for simulating audio communications using a computer network | ||
| Kase J. Saylor, San Antonio, Tex. (US); Gary L. Ragsdale, San Antonio, Tex. (US); Jimmy R. Gaddy, San Antonio, Tex. (US); and Stephen R. Gray, San Antonio, Tex. (US) | ||
| Assigned to Southwest Research Institute, San Antonio, Tex. (US) | ||
| Filed on Nov. 24, 2003, as Appl. No. 10/720,779. | ||
| Prior Publication US 2005/0114144 A1, May 26, 2005 | ||
| Int. Cl. H03G 3/00 (2006.01) | ||
| U.S. Cl. 381—61 [381/309] | 30 Claims |
| 1. A method for providing simulated audio communications, which simulate an RF transmission using a selected type of RF transceiver
and a selected type of RF transmission medium, to a simulation system, comprising the steps of:
linking as a data network, a server and two or more client systems;
storing at least one transceiver model, accessible by the server, wherein the transceiver model stores data representing audible
transceiver effects of the selected RF transceiver;
storing at least one impairment model, accessible by the server, wherein the impairment model stores data representing audible
transmission effects of the selected RF transmission medium;
sampling voice input at a first client system, resulting in sampled voice data;
transmitting the sampled voice data to the server;
using the server to add additional audio data to the sampled voice data, by applying at least one transceiver model and at
least one impairment model, wherein the transceiver model injects transceiver effects into the sampled voice data and the
impairment model injects transmission effects into the sampled voice data, thereby resulting in processed audio data;
wherein one of the transmission effects is noise due to the transmission medium;
wherein at least one of the transceiver effects operates to limit amplitude of the audio data due to transceiver sensitivity;
transmitting the processed audio data to a second client system.
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