Additional Cues for Mandarin Tone Recognition
Dinoj Surendran, Gina‐Anne Levow · 2006
Most cues for Mandarin tone recognition involve pitch, overall intensity and duration. This paper investigates ten other possible cues, and finds one that results in modest, but significant, improvement in classification accuracy on a small speaker-independent corpus of Mandarin news broadcast speech. This cue consists of the energies in the sixteen non-overlapping bands of bandwidth 500Hz from 0 to 8kHz. Most of the improvement is in differentiating the neutral tone from the high, rising, and low tones. The other cues tested, which provided no improvement in accuracy, included