Tone model enhancement for low complexity tone recognition
Conference proceedings article
ผู้เขียน/บรรณาธิการ
กลุ่มสาขาการวิจัยเชิงกลยุทธ์
ไม่พบข้อมูลที่เกี่ยวข้อง
รายละเอียดสำหรับงานพิมพ์
รายชื่อผู้แต่ง: Chaiwongsai J., Chiracharit W., Chamnongthai K., Miyanaga Y., Higuchi K.
ผู้เผยแพร่: Hindawi
ปีที่เผยแพร่ (ค.ศ.): 2013
หน้าแรก: 60
หน้าสุดท้าย: 65
จำนวนหน้า: 6
นอก: 0146-9428
eISSN: 1745-4557
ภาษา: English-Great Britain (EN-GB)
บทคัดย่อ
This paper proposes tone model enhancement for low complexity tone recognition. The tone model reduces the number of input frames by estimating fundamental frequency (F0) from only estimated vowel signals, called vowel magnitude difference function, vowel-MDF (VMDF). Accordingly, it reduces F0 negative influence from neighboring syllables in continuous speech. We enhance tone recognition accuracy by more precise and low calculation vowel segmentation. This results in low complexity tone recognition making it suitable for portable equipment. In addition, the tone model is designed with parallel processing which results in real-time processing. The proposed method was tested and set by 40 Thai words, selected from voice activation for GPS systems and phone dialing options. The experimental results show 8.2% improvement in recognition accuracy, compared with the fixed vowel threshold. The tone recognition provides a 33.8% reduction in number of frames and 25.0% reduction in processing time, compared with using the entire syllable method. ฉ 2013 Infonomics Society.
คำสำคัญ
vowel-MDF (VMDF), vowel segmentation