Oesophageal Speech’s Formants Measurement Using Wavelet Transform
Begoña García, Ibon Ruiz, Amaia Mendez · InTech eBooks · 2012
Our research group has presented many works to the scientific community [2], [3], aimed to the improvement of esophageal speech quality by stabilizing the poles of the system which models the vocal tract with LPC. Nowadays the wavelet transform is being used in order to enhance the Harmonics to noise ratio. For this task, it is crucial to know accurately the frequency values of formants in vowels [7].