Evaluation of the Harmony Soundprocessor in Combination With the Speech Coding Strategy HiRes 120
| Autor: | Carolin Frohne-Buechner, Andreas Buechner, Thomas Lenarz, Beate Krueger, Martina Brendel |
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| Rok vydání: | 2008 |
| Předmět: |
Adult
Male Bionics Speech recognition Speech coding Deafness Prosthesis Design Front and back ends Microcomputers Surveys and Questionnaires Humans Prosthesis design Medicine Aged ComputingMilieux_THECOMPUTINGPROFESSION business.industry Harmony (ISS module) Middle Aged Resolution (logic) Sensory Systems Cochlear Implants Otorhinolaryngology Power consumption Speech Perception Female Neurology (clinical) business |
| Zdroj: | Otology & Neurotology. 29:199-202 |
| ISSN: | 1531-7129 |
| DOI: | 10.1097/mao.0b013e31816335c6 |
| Popis: | The Advanced Bionics Harmony BTE processor was developed to support the new speech coding strategy HiRes 120 with a resolution of 120 channels based on "current steering." Compared with the previous Auria, the front end has been re-designed and power consumption reduced.HiRes 120 as well as the impact of the improved Harmony processing concerning a better speech understanding were evaluated. Subject's performance was evaluated using a test battery of the Hochmair-Schulz-Moser (HSM) sentence test and questionnaires regarding general sound quality, music perception, battery life time and processor handling.In the first study group, 11 postlingually deafened adult subjects participated with a minimum of 9 months experience. The second study group consisted of 14 postlingually deafened adult subjects with a minimum of 2 years experience.Tested were the 2 speech coding strategies HiRes and HiRes 120 on the Harmony and the clinical system, respectively.Speech perception tests in quiet, in CCITT noise, as well as with a competing talker, questionnaires regarding sound quality and handling and perceptual channel tests.A total of 84% showed a clear preference for the Harmony processor compared with their previous processor with HiRes. The speech test results showed a 7.7% average increase in the HSM sentence test with 5 dB SNR competing talker.The majority of the subjects wanted to change to the new Harmony processor because of a better understanding in everyday life, handling, and improved battery-life time. |
| Databáze: | OpenAIRE |
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