• minF0
• maxF0
• rangeF0
• avgF0
• duration

• seglola – broad-class phone

• begF0, begF1, begF2, begF3, begF4, begF5
• medF0, medF1, medF2, medF3, medF4, medF5
• endF0, endF1, endF2, endF3, endF4, endF5
• minF0
• maxF0
• tminF0
• tmaxF0

• avgPitch
• minPitch
• maxPitch
• begPitch
• endPitch
• centerPitch – pitch value at center of regression line
• pitchSlope – from linear regression
• pitchSlopeStdErr – from linear regression
• pitchDensity – sample in the segment that have a pitch defined, divided by total number of samples in the segment
• pitchCount – number of samples in the segment that have a pitch defined

TODO: add quadratic regression features here.

Spoken Language ID