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Ȩ Ȩ > ¿¬±¸¹®Çå > Çмú´ëȸ ÇÁ·Î½Ãµù > Çѱ¹Á¤º¸Åë½ÅÇÐȸ Çмú´ëȸ > 2008³â Ãá°èÇмú´ëȸ

2008³â Ãá°èÇмú´ëȸ

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) À½¼º½ÅÈ£ ¾ÐÃà ¹× º¹¿øÀ» À§ÇÑ À½¼º õÀ̱¸°£ °ËÃâ°ú ±Ù»çÇÕ¼º ¹æ½Ä
¿µ¹®Á¦¸ñ(English Title) Speech Transition Detection and approximate-synthesis Method for Speech Signal Compression and Recovery
ÀúÀÚ(Author) À̱¤¼®   ±èºÀ±â   °­¼º¼ö   ±èÇö´ö   Kwang-seok Lee   Bong-gi Kim   Seong-soo Kang   Hyun-deok Kim  
¿ø¹®¼ö·Ïó(Citation) VOL 12 NO. 01 PP. 0763 ~ 0767 (2008. 05)
Çѱ۳»¿ë
(Korean Abstract)
À¯․¹«¼ºÀ½ÀÇ À½¿øÀ» ÀÌ¿ëÇÑ À½¼ººÎȣȭ ½Ã½ºÅÛ¿¡¼­´Â ÇÁ·¹ÀÓ ³»¿¡ À¯¼ºÀÚÀ½°ú ¹«¼ºÀÚÀ½ÀÌ °øÁ¸ÇÏ´Â °æ¿ì À½ÁúÀÇ ¿Ö°îÀ» ¼ö¹ÝÇÒ ¼ö ÀÖ´Ù. µû¶ó¼­ ÇÁ·¹ÀÓ ³»¿¡ À¯¼ºÀÚÀ½°ú ¹«¼ºÀÚÀ½ÀÌ °øÁ¸ÇÏÁö ¾Êµµ·Ï Çϱâ À§Çؼ­ ¹«¼ºÀÚÀ½À» Ž»ö ¹× °ËÃâÀ» Æ÷ÇÔÇϴ õÀ̱¸°£À» Á¦¾ÈÇÏ¿´´Ù. º» ¿¬±¸´Â ÃÖ¼Ò Àڽ¹ý°ú ÁÖÆļö ´ë¿ª ºÐÇÒ¹ýÀ» »ç¿ëÇÔÀ¸·Î½á TS ±Ù»çÇÕ¼ºÀÇ »õ·Î¿î ¹æ½ÄÀ» Á¦½ÃÇÏ¿´´Ù. °á°úÀûÀ¸·Î ÀÌ ¹æ½ÄÀº 0.547kHzÀÌÇÏ¿Í 2.813kHz À̻󿡼­ÀÇ ÁÖÆļö Á¤º¸¸¦ ÀÌ¿ëÇÔÀ¸·Î½á TS³»¿¡¼­ °íÇ°ÁúÀÇ ±Ù»çÇÕ¼º ÆÄÇüÀ» ¾òÀ» ¼ö ÀÖ¾ú´Ù. Áß¿äÇÑ °ÍÀº ÃÖ´ë ¿À·ù½ÅÈ£´Â TS³»¿¡ Àú ¿Ö°î ±Ù»ç ÇÕ¼ºÆÄÇüÀÌ »ý±æ ¼ö ÀÖ´Ù´Â °ÍÀÌ´Ù. ÀÌ ¹æ½ÄÀº À¯¼ºÀ½/¹¬À½/TSÀÇ »õ·Î¿î À½¼ººÎȣȭ, À½¼ºÇؼ® ¹× À½¼ºÇÕ¼º¿¡ Àû¿ëÇÒ ¼ö ÀÖÀ¸¸®¶ó »ý°¢ÇÑ´Ù.
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(English Abstract)
In a speech coding system using excitation source of voiced and unvoiced, it would be involved a distortion of speech quality in case coexist with a voiced and an unvoiced consonants in a frame. So, We proposed TS(Transition Segment) including unvoiced consonant searching and extraction method in order to uncoexistent with a voiced and unvoiced consonants in a frame. This research present a new method of TS approximate-synthesis by using Least Mean Square and frequency band division. As a result, this method obtain a high quality approximation-synthesis waveforms within TS by using frequency information of 0.547kHz below and 2.813kHz above. The important thing is that the maximum error signal can be made with low distortion approximation-synthesis waveform within TS. This method has the capability of being applied to a new speech coding of Voiced/Silence/TS, speech analysis and speech synthesis.
Å°¿öµå(Keyword) Speech Transition Detection   Approximate-Synthesis Method   Compression and Recovery  
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