Abrégé

A method for obtaining visual feedback for vowel quality is disclosed. By filtering and decomposing audio signals in formants, one or more software modules and/or applications may determine the type of phoneme in an audio signal that corresponds to a vowel. First and second formants may be measured in their frequencies; subsequently frequencies values of first formant and second formant may be assigned as X and Y coordinates, respectively. These (X, Y) coordinates may be used for graphing points and trajectories of the points in a Cartesian coordinate system while the user is pronouncing a vowel. Thus, graphic feedback for vowel pronunciation may be obtained.

Classes IPC  ?

• G10L 21/00 - Techniques de traitement du signal de parole ou de voix pour produire un autre signal audible ou non audible, p. ex. visuel ou tactile, afin de modifier sa qualité ou son intelligibilité

Abrégé

Disclosed here is a yarn feeding device of use in making textile products by hand.

Classes IPC  ?

• D04B 3/04 - Protège-doigtsTendeurs de fils
• D05B 91/04 - Dés à coudreProtège-doigtsProtège-mains

Abrégé

Disclosed here is a type of crochet hook of use in piercing a material for crocheting purposes, where the crochet hook's end may be tapered at a sufficiently acute angle so as to allow the end to pierce the desired material.

Classes IPC  ?

• D04B 3/02 - Aiguilles