The Modulation Transfer Function for Speech Intelligibility
نویسندگان
چکیده
منابع مشابه
The Modulation Transfer Function for Speech Intelligibility
We systematically determined which spectrotemporal modulations in speech are necessary for comprehension by human listeners. Speech comprehension has been shown to be robust to spectral and temporal degradations, but the specific relevance of particular degradations is arguable due to the complexity of the joint spectral and temporal information in the speech signal. We applied a novel modulati...
متن کاملSpectro-temporal modulation transfer functions and speech intelligibility.
Detection thresholds for spectral and temporal modulations are measured using broadband spectra with sinusoidally rippled profiles that drift up or down the log-frequency axis at constant velocities. Spectro-temporal modulation transfer functions (MTFs) are derived as a function of ripple peak density (omega cycles/octave) and drifting velocity (omega Hz). The MTFs exhibit a low-pass function w...
متن کاملDesigning modulation filters for improving speech intelligibility in reverberant environments
In this paper, we propose a new technique to design modulation filters to reduce degradation of speech intelligibility in reverberant environments. Using the inverse modulation transfer function, we design data-derived modulation filters for each speech frequency band. These filters preprocess speech signals between a microphone and a loudspeaker that radiates speech into a performance hall. Us...
متن کاملThe relation between speech intelligibility and the complex modulation spectrum
The amplitude and phase components of the modulation spectrum were dissociated in order to ascertain the importance of cross-spectral, envelope-modulation phase information for understanding spoken language. The dissociation was effected via local time reversals of the speech waveform (i.e., flipping the signal on its horizontal axis) at intervals ranging between 0 and 180 ms. Intelligibility d...
متن کاملMaximising objective speech intelligibility by local f0 modulation
We investigated the effect on objective speech intelligibility of scaling the fundamental frequency (f0) of voiced regions in a set of utterances. The frequency scaling was driven by maximising the glimpse proportion in voiced epochs, inspired by musical consonance maximisation techniques. Results show that depending on the energetic masker and the signal to noise ratio, f0 modifications increa...
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: PLoS Computational Biology
سال: 2009
ISSN: 1553-7358
DOI: 10.1371/journal.pcbi.1000302