April 16th 2002	A TEOAE functional extension is finalized to the VivoScan and it is planned to be introduced in early 2003. This function, comprises an elegant way of TEOAE recording without the need of Kemp's non-linear alternate stimulation for stimulus artifact minimization; this method seems to be is faster, and the Vivosonic people think the response is more "relevant" to the stimulus level than with non-linear alternate stimulation. There is work in progress for an ABR /ASSR functional extension to the VivoScan. Vivosonic has announced the possibility to build custom systems for DPOAE research.For more information contact Dr. Yuri Sokolov.
November 11th 2002	A TEOAE functional extension is finalized to the VivoScan and it is planned to be introduced in early 2003. This function, comprises an elegant way of TEOAE recording without the need of Kemp's non-linear alternate stimulation for stimulus artifact minimization; this method seems to be is faster, and the Vivosonic people think the response is more "relevant" to the stimulus level than with non-linear alternate stimulation. There is work in progress for an ABR /ASSR functional extension to the VivoScan. Vivosonic has announced the possibility to build custom systems for DPOAE research.For more information contact Dr. Yuri Sokolov.
November 4th 2002	There is a new 1.1 software on the VivoScan. It has a significantly elaborated user interface and database, with more information and easier search in the database. Particularly, it has three new user-defined items in "Patient Information Screen" that are also Database items and can be used for data search.          It has the capability of direct on-screen comparison of DP-grams in Database which is ideal for comparing base-line and follow-up DP-grams for monitoring ototoxic and noise/music-induced hearing loss. The user can automatically perform either one or two (for testing repeatability) test runs, and can record on-screen multiple DP-grams - up to 24 single-run DP-grams and up to 16 double-run DP-grams. It has three testing modes for different testing situations - Fast, Medium, and Accurate.          Automatic system self-test is now separated into calibration check and system DP and system noise self-tests, with different error messages to the user if there is a problem - this provides more specific information on the system performance to the user and prevents inaccurate testing [the typically audiometric systems are calibrated once a year, and if some adjustment is made to a unit's calibration, then nobody knows how the results between two calibrations are to be interpreted or adjusted - this dilemma has been completely eliminated and correct and accurate results, have been ensured].          There are also numerous improvements that make it more user-friendly, for example there are color-coded "Right" and "Left" buttons in the "Test Session Screen", and DP-grams are also color-coded. Database is now accessible from "Test Planner Screen". "Newborn" information items are separated and can be deactivated if a child or adult is tested. Many of patient information fields have drop-down lists, which the user can add to or delete from, to avoid retyping repeating information and corresponding mistakes and misallocations in the database. See details in V. 1.1 User's Manual at http://www.vivosonic.com/Vivo200DPSUserManual2.pdf.

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