The Effects of Phase Information on the Intelligibility of Channel Vocoded Speech

نویسنده

  • R. H. Mannell
چکیده

The intelligibility of vocoded speech with various phase spectra was compared to the intelligibility of the original input natural speech. It was found that vocoded speech with true natural phase was the closest to natural speech in intelligibility.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Comparing the Contributions of Amplitude and Phase to Speech Intelligibility in a Vocoder-Based Speech Synthesis Model

Vocoder-based speech synthesis model has been long used to assess the contribution of acoustic cue for speech recognition. This study compared the perceptual contributions of amplitude and phase by using two types of stimuli, i.e., amplitudeand phase-based vocoded stimuli. The amplitude-based vocoded stimuli were synthesized by preserving amplitude fluctuation cue but discarding phase cue (i.e....

متن کامل

Predicting the intelligibility of vocoded speech.

OBJECTIVES The purpose of this study is to evaluate the performance of a number of speech intelligibility indices in terms of predicting the intelligibility of vocoded speech. DESIGN Noise-corrupted sentences were vocoded in a total of 80 conditions, involving three different signal-to-noise ratio levels (-5, 0, and 5 dB) and two types of maskers (steady state noise and two-talker). Tone-voco...

متن کامل

Effects of envelope filter cutoff frequency on the intelligibility of Mandarin noise-vocoded speech in babble noise: implications for cochlear implants

In cochlear implants, limited spectral and temporal information is provided. Previous studies argued for different effects of temporal information on speech identification in adverse environments. Particularly, it is unclear how speech intelligibility is influenced by the low-pass cutoff frequency of temporal envelope extractors in noise. The current study explored this issue with Mandarin nois...

متن کامل

Effects of introducing low-frequency harmonics in the perception of vocoded telephone speech.

Several studies have demonstrated that telephone use presents a challenge for most cochlear implant (CI) users, and this is attributed mainly to the narrow bandwidth (300-3400 Hz) introduced by the telephone network. The present study focuses on answering the question whether telephone speech recognition in noise can be improved by introducing, prior to vocoder processing, low-frequency harmoni...

متن کامل

Predicting the intelligibility of vocoded and wideband Mandarin Chinese.

Due to the limited number of cochlear implantees speaking Mandarin Chinese, it is extremely difficult to evaluate new speech coding algorithms designed for tonal languages. Access to an intelligibility index that could reliably predict the intelligibility of vocoded (and non-vocoded) Mandarin Chinese is a viable solution to address this challenge. The speech-transmission index (STI) and coheren...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2008