Phonetic Symbols, Keyboards and Transcription
This page provides some information and resources for the use of the International Phonetics Association alphabet of phonetic symbols for the transcription of speech using computers.
Unicode Phonetic Keyboard and SIL Fonts
The Unicode Phonetic Keyboard is an installable keyboard for Windows PCs that provides a convenient keyboard layout for the word-processing of phonetic transcription using Unicode fonts. The installation package comes complete with two Unicode fonts: Doulos and Charis that have been developed by SIL.
Guide to the use of Unicode Phonetic Symbols
John Wells has written a number of pages which give more information about the set of phonetic symbols available in Unicode, and about how these can be used in Microsoft Word and other applications:
IPA-SAM Phonetic Fonts
SAMPA–SAM Phonetic Alphabet
SAMPA is a phonetic transcription coding that uses normal ASCII characters as replacements for IPA symbols. It has been designed for phonemic/broad phonetic transcription of European languages.
Spoken Phonetic Transcription
The PHONWEB page provides a facility to read out SAMPA phonetic transcription for English in synthetic speech!
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ESection is a free program for calculating and displaying spectral and other related analyses of sections of a speech signal. It can be used to demonstrate the different spectral properties of elements of speech. It can also calculate an LPC spectrum, autocorrelation and cepstrum analyses, and can display the signal as a waveform or as a spectrogram. It automatically finds formant and fundamental frequency values.
CochSim is a dynamic simulation of the time and frequency analysis performed by the ear. Sound signals such as sinewaves, pulse trains, sawtooth waves and vowels can be fed into an auditory filterbank and the output monitored in a moving animated display. The program shows the vibration of the oval window and the basilar membrane, the haircell activity against filter frequency and time, and an average excitation pattern across the cochlea.
HearLoss is a free interactive Windows PC program for demonstrating to normally hearing people the effects of hearing loss.
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