Resources

The University of Manchester Phonetics Lab is equipped with both PC and Mac computers. Apart from equipment for acoustic and articulatory analyses (see below), there is going to be a modest phonetics-phonology library as well – coming soon!

Articulatory Resources

The University of Manchester Phonetics Lab has many machines for articulatory phonetic analysis.

Ultrasound

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Ultrasound

Ultrasound captures dynamic tongue shapes and images the tongue from root to blade in one image.  It is inexpensive, non-invasive and produces real-time data.  The ultrasound transducer emits a high-frequency sound which travels toward the tongue.  When the sound wave hits the tongue, it sends an echo back towards the transducer which is reconstructed into the ultrasound image.

Electropalatography (EPG)

This is an EPG palate

Spanish nasals from Ramsammy (2012)

EPG is an articulatory imaging technique that records contact between the tongue and the palate during speech. Articulate palates have 64 electrodes (in 8 rows) which are exposed to the lingual surface. The electrodes on the palate are connected to an electronics unit, which collect data from the palate when contact occurs between the tongue surface and any of the electrodes and passes it on to a computer. EPG provides dynamic real-time visual feedback of the location and timing of tongue contacts with the hard palate.

Airflow machine

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Airflow machine

The UoM Phon lab has equipment to record the airflow from the mouth and nose. The airflow machine can record the pressure of the air in the front of the mouth and in the pharynx.

Laryngograph (or EGG)

This is an EPG palate

Laryngograph

The Laryngograph (sometimes referred to as an electroglottograph or EGG) is a device for measuring of the degree of contact between the vibrating vocal folds during speech.