Subjective Speech Quality Test — NJ Transit

In March of 2017 I conducted at subjective test to assess the quality of the NJ Transit TETRA speech communications system. The test was conducted at the Nokia Bell Labs facility with more than 40 subjects, who were NJ Transit employees. Many were bus operators and so were familiar with the quality of the current communications system.

Subjective Audio Quality Test — MPEG 3D Audio

Late in 2016 I designed and supervised a subjective audio quality test of the Low Complexity Profile of MPEG-H 3D Audio. The tests covered a range of bit rates, from 768 kb/s to 48 kb/s and a range of “immersive audio” use cases, from 22.2 to 2.0 channel presentations. Seven test sites participated in the tests with a total of 288 listeners. This resulted in a data set of 15576 individual scores. The report, N16584 MPEG-H 3D Audio Verification Test Report, was published at the 117th MPEG meeting and is available at http://mpeg.chiariglione.org/standards/mpeg-h/3d-audio.

Patent Expert in Petition for Inter Partes Review

Client was a major Internet search engine provider. Client petitioned for Inter Partes Review of patent asserted against client’s products and services. I wrote an expert report supporting patent invalidity and gave a deposition on that report. Patent involved method for coding of wideband speech signals.

Patent Expert in Petition for Inter Partes Review

Client was a provider of audio/visual logging systems for law enforcement. Client petitioned for Inter Partes Review of patent asserted against client products and services. Wrote one expert reports, gave deposition on report.  Patent concerns which concerns logging and transmission of audio, video and data signals in an emergency vehicle.