An Electropalatograph ( EPG for short or also termed palatometer in the US) is an instrument that records the timing and location of tongue contact with the hard palate during speech.
The technique requires the speaker to wear an artificial palate that is moulded to fit the roof of the mouth. Tongue-palate contact is recorded by a number of silver or gold contacts located on the lingual surface of this artificial palate (also termed pseudopalate).
EPG can be used as an aid to help a speech and language therapist diagnose disordered speech and provide visual cues during therapy.
EPG is also used by phoneticians as a tool for studying typical (or indeed disordered) speech in a research setting
The PTU is a battery powered portable electropalatography unit which provides visual feedback without the need for a computer. It is ideal for speech therapy clients to use at home.
Safety. Optical isolation between client and battery power source.
Low running costs. Designed to have low power consumption. Around 100 hours continuous use from one set of batteries. Automatic shutdown after 20minutes with no use, to conserve batteries if unit accidentally left on.
Compatibility. Uses the same multiplexer and palate as EPG3
Portability. The system comes in its own carry case, making it easy to store and transport between clinic and home.
The Portable Training Unit (PTU) includes the following supplied components:
- Multiplexer with chrome handgrip
- PTU display unit
- Carry case
WinEPG comprises of the following units:You also need (not supplied):
WinEPG records EPG at 100Hz (see multichannel for higher EPG frame rate).
- Runs on XP, Windows 7 32-bit
- Records several minutes of speech depending on the acoustic sample rate and the amount of RAM available on the PC
- Data labelling, annotation and query facility supports phonetic research
- Modular configuration allows screens to be arranged the way you want
- Client-based software manages the creation and storage of data files. Files are named and saved automatically.
- Library of typical palate patterns
- Comparative feedback screen for encouraging paediatric clients
- Colours can be changed easily.
- EPG indices such as CoG, alveolar total as well as customizable indices.
- Database search allows indices for specified annotations to be exported.
- Many additional features.
A multichannel extension to WinEPG which allows other instrumentation to be synchronised with audio and EPG such as airflow, EMA, VICON or ultrasound.
It consists of:
- An 8 channel AtoD PCI format card
- A breakout box which provides a choice of 6.35mm jack, BNC and XLR sockets for each of 6 channels and BNC sockets only for the remaining 2 channels. There is also a dedicated EPG synchronisation signal input.
- A copy of AAA software to replace the Articulate Assistant software for recording and analysing the multichannel data.
Please enquire for more details