The Articulograph AG501 provides:

• Three coordinates (x; y; z) and two directional angles (phi;theta)

• 400 Hz sampling rate - ideal for fast passive and active speech

• movements and signal processing techniques that rely on oversampling 

• Dynamic positional accuracy 0.3 mm RMS -
  for line movements of 100 mm in length valid for 100 % of all data

• Integrated synchronous sound recording 

• Speech movements are easy to correct for head motions

• High temporal and spatial resolution, therefore very suitable for recording small and fast speech movements

• Real-time display of all sensors during the recording

• The possibility to upgrade to 24 channels