Semitone frequency mapping to improve music representation for nucleus cochlear implants
نویسندگان
چکیده
منابع مشابه
Semitone frequency mapping to improve music representation for nucleus cochlear implants
The frequency-to-channel mapping for Cochlear implant (CI) signal processors was originally designed to optimize speech perception and generally does not preserve the harmonic structure of music sounds. An algorithm aimed at restoring the harmonic relationship of frequency components based on semitone mapping is presented in this article. Two semitone (Smt) based mappings in different frequency...
متن کاملPitch Ranking, Melody Contour and Instrument Recognition Tests Using Two Semitone Frequency Maps for Nucleus Cochlear Implants
To overcome harmonic structure distortions of complex tones in the low frequency range due to the frequency to electrode mapping function used in Nucleus cochlear implants, two modified frequency maps based on a semitone frequency scale (Smt-MF and Smt-LF) were implemented and evaluated. The semitone maps were compared against standard mapping in three psychoacoustic experiments with the three ...
متن کاملEmotional Perception of Music in Children with Unilateral Cochlear Implants
Introduction: Cochlear implantation (CI) improves language skills among children with hearing loss. However, children with CIs still fall short of fulfilling some other needs, including musical perception. This is often attributed to the biological, technological, and acoustic limitations of CIs. Emotions play a key role in the understanding and enjoyment of music. The present study aimed to in...
متن کاملUnderstanding music with cochlear implants
Direct stimulation of the auditory nerve via a Cochlear Implant (CI) enables profoundly hearing-impaired people to perceive sounds. Many CI users find language comprehension satisfactory, but music perception is generally considered difficult. However, music contains different dimensions which might be accessible in different ways. We aimed to highlight three main dimensions of music processing...
متن کاملNew Fundamental Frequency Estimators for Cochlear Implants
Users of cochlear implants experience difficulties in listening to music. Improved processing of music signals for hearing implants requires an accurate and robust estimation of the musical pitch. This paper presents a comparative study of two different signal processing strategies for estimating the fundamental frequencies (F0) of almost-periodic input signals. Their performance with various i...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: EURASIP Journal on Audio, Speech, and Music Processing
سال: 2011
ISSN: 1687-4722
DOI: 10.1186/1687-4722-2011-2