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Ç¥ÁعøÈ£ TTAE.3G-26.090(R4-4.0.0) ±¸Ç¥ÁعøÈ£
Á¦°³Á¤ÀÏ 2002-10-28 ÃÑÆäÀÌÁö 55
ÇѱÛÇ¥Áظí IMT-2000 3GPP-AMR À½¼º ÄÚµ¦; º¯È¯ ºÎȣȭ ±â´É;4.0.0
¿µ¹®Ç¥Áظí IMT-2000 3GPP-AMR speech Codec; Transcoding Functions;4.0.0
Çѱ۳»¿ë¿ä¾à º» Ç¥ÁØÀº AMR À½¼º ÄÚµ¦À» ä¿ëÇÏ´Â Çù´ë¿ª ÀüÈ­Åë½Å À½¼º¼­ºñ½ºÀÇ »ó¼¼ÇÑ ¸ÅÇο¡ ´ëÇÑ Á¤º¸¸¦ Á¦°øÇÔÀ» ¸ñÀûÀ¸·Î ÇÑ´Ù
IMT-2000 DS¹æ½Ä Áß FDD¹æ½Ä ½Ã½ºÅÛÀÇ AMR À½¼º ÄÚµ¦¿¡ ´ëÇÑ ±âÁØÀ¸·Î »ç¿ëÇÒ ¼ö ÀÖ´Ù
13 ºñÆ® ±ÕÀÏ PCM Æ÷¸ËÀ¸·Î 160°³ À½¼º »ùÇÃÀÇ ÀÔ·Â ºí·Ï¿¡¼­ 95, 103, 118, 134, 148, 159, 204, ±×¸®°í 244 ºñÆ®ÀÇ ¿£ÄÚµùµÈ ºí·ÏÀ¸·Î »ó¼¼ ¸ÅÇΰú 95, 103, 118, 134, 148, 159, 204, ±×¸®°í 244 ºñÆ®ÀÇ ¿£ÄÚµùµÈ ºí·Ï¿¡¼­ À籸¼ºµÇ´Â 160°³ À½¼º »ùÇ÷Π»ó¼¼ ¸ÅÇÎÀ» ¼³¸íÇÑ´Ù. »ùÇøµ ·¹ÀÌÅÍ´Â ÃÊ´ç 8000 »ùÇÃÀ̸ç ÀÌ°ÍÀº 4.75, 5.15, 5.90, 6.70, 7.40, 7.95, 10.2 ȤÀº 12.2 kbit/sÀÇ ¿£ÄÚµùµÈ ºñÆ® ½ºÆ®¸²À» À§ÇÑ ºñÆ® ·¹ÀÌÆ®°¡ µÈ´Ù. ¸ÖƼ·¹ÀÌÅÍ ÄÚµù ¸ðµå¸¦ À§ÇÑ ÄÚµù ±¸Á¶´Â ACELP(Algebraic Code Excited Linear Prediction Coder)ÀÌ¸ç ¸ÖƼ·¹ÀÌÅÍ ACELP ÄÚ´õ¸¦ MR-ACELP¶ó ÇÑ´Ù.
¿µ¹®³»¿ë¿ä¾à The present document describes the detailed mapping from input blocks of 160 speech samples in 13?bit uniform PCM format to encoded blocks of 95, 103, 118, 134, 148, 159, 204, and 244 bits and from encoded blocks of 95, 103, 118, 134, 148, 159, 204, and 244 bits to output blocks of 160 reconstructed speech samples. The sampling rate is 8 000 samples/s leading to a bit rate for the encoded bit stream of 4.75, 5.15, 5.90, 6.70, 7.40, 7.95, 10.2 or 12.2 kbit/s. The coding scheme for the multi-rate coding modes is the so?called Algebraic Code Excited Linear Prediction Coder, hereafter referred to as ACELP. The multi-rate ACELP coder is referred to as MR-ACELP.
±¹Á¦Ç¥ÁØ 3GPP TS 26.09
°ü·ÃÆÄÀÏ TTAE.3G-26.090(R4-4.0.0).pdf TTAE.3G-26.090(R4-4.0.0).pdf            

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IMT-2000 3GPP-AMR À½¼º ÀÎÄÚ´õ¿¡¼­ ÀâÀ½ ¾ïÁ¦ ¾ÖÇø®ÄÉÀ̼ÇÀ» À§ÇÑ ÃÖ¼Ò ¿ä±¸ ¼º´É;4.0.0
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IMT-2000 3GPP-AMR À½¼º ÄÚµ¦; À¯½ÇµÈ ÇÁ·¹ÀÓÀÇ ¿À·ù Àº´Ð ;4.0.0