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

The IPA-SAM fonts are a set of TrueType fonts (not Unicode) suitable for Windows and MacOS that include all current IPA symbols. The keyboard layout is designed to be compatible with SAMPA.

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 - Speech signal cross-sections

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.

ESYNTH - Harmonic analysis/synthesis teaching tool

ESynth is a free program designed to explain the harmonic analysis and synthesis of signals. With ESynth you can create signals by adding together individual sinusoidal waveforms (sinewaves) and study the resulting waveform and spectrum. You can also perform an analysis of an input waveform, to see how a given sound can be represented in terms of a sum of sinewaves.

HEARLOSS - Hearing Impairment Demonstrator

HearLoss is a free interactive Windows PC program for demonstrating to normally hearing people the effects of hearing loss.

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