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g711conv —

G.711 ?˽????Ѵ?

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g711conv [-a] [-u] [-P] [-A] [-R]

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g711conv ?桼?ƥ????ƥ??? isdn4bsd ?ѥå??????ΰ???ʬ?Ǥ??? ITU G.711?ǵ??ꤵ???Ƥ??? A-Law ?? u-law ?ե????ޥåȴ֤??Ѵ??˻Ȥ????ޤ??? ???Υ??ޥ??ɤ? Sun Microsystems, Inc. ?ˤ??äƼ??????줿 ???ե????󥹼????˴??Ť??Ƥ??ޤ??? Sun Microsystems, Inc. ?Υ??ե????󥹼????? ??ͳ????????ǽ?Ǽ?ͳ?????Ѥ??뤳?Ȥ??Ǥ??ޤ???

?ʲ??Υ??ץ??????????Ѳ?ǽ?Ǥ?:

-a: A-law ???? u-law ???Ѵ????ޤ???
-u: u-law ???? A-law ???Ѵ????ޤ???
-r: ?Ѵ????˥ӥå?ȿž???Ԥ??ޤ???
-R: ?Ѵ????˥ӥå?ȿž???Ԥ??ޤ???
-P: ?ºݤ??Ѵ??򤹤????????ˡ?ɸ?????Ϥ˷??̤Ȥ??? ???????Ѵ??ơ??֥??? (C ?Υ??????Ȥ???) ɽ?????ޤ???

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A-Law ?? u-law ?֤??Ѵ???ˡ?ϡ? ITU Recommendation G.711 ?ǵ??ꤵ???Ƥ??ޤ???

???ͤˤʤ??????? Sun Microsystems, Inc. ?ˤ??äƹԤ????Ƥ??ꡢ?????? http://www.itu.int/itudoc/itu-t/rec/g/g700-799/refimpl.txt ???黲?ȤǤ??ޤ???

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???Υ??ޥ???:

g711conv -P -a

??ɸ?????Ϥ? C ?Υ??????Ȥ??? A-law ???? u-law ?ؤ??Ѵ??ơ??֥??? ɽ?????ޤ???

???Υ??ޥ???:

cat max_headroom.ul | g711conv -u -R > /dev/i4btel0

?? u-law ?????? Max Headroom ?β????? A-law ???Ѵ????? ?Ѵ????̤ΥӥåȤ??դˤ????????ƥ????ƥ??֤? isdn4bsd ???å??ͥ????????? ?ǡ??????????ޤ???

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g711conv ?桼?ƥ????ƥ??Ȥ??Υޥ˥奢???ڡ????? Hellmuth Michaelis ⟨hm@kts.org⟩ ???񤭤ޤ????????????? Sun Microsystems, Inc. ???񤤤? G.711 ?Ѵ????ե????󥹥????ɤȡ? Stefan Bethke ?? isdn4bsd ?ش?£?????????ɤ˴??Ť??Ƥ??ޤ???