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PDC Enhanced Full Rate is a speech coding standard that was developed by ARIB in Japan and used in PDC mobile networks in Japan. The carriers use one of those codecs as PDC-EFR: CS-ACELP 8 kbit/s (aka NTT DoCoMo Hypertalk) and ACELP 6.7 kbit/s (aka J-PHONE Crystal Voice). The PDC-EFR CS-ACELP uses G.729. The PDC-EFR ACELP is compatible with the AMR mode AMR_6.70. ==See also== * AMR * PDC * PDC-FR - VSELP-based old full-rate codec * PDC-HR 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「PDC-EFR」の詳細全文を読む スポンサード リンク
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