From owner-FreeBSD-users-jp@jp.freebsd.org  Tue Aug 18 01:51:13 1998
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To: FreeBSD-users-jp@jp.freebsd.org
From: SONODA Yoshihide (=?iso-2022-jp?B?GyRCMWBFRBsoQiAbJEI1SDFRGyhC?=) <ysonoda@dontaku.csce.kyushu-u.ac.jp>
In-Reply-To: Your message of "Mon, 17 Aug 1998 23:50:46 +0900 (JST)"
	<199808171450.XAA01655.vifam@futatuki.fureai.or.jp>
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Date: Tue, 18 Aug 1998 01:51:02 +0900
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Subject: [FreeBSD-users-jp 31886] Re: 16bit sound on Libretto
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$B1`ED!w6eBg$H?=$7$^$9!#(B

$B0JA0!"%F%9%HMQ$K(B sine wave $B$N2;@<%U%!%$%k$r:n@.$9$k%W%m%0%i%`$r(B
$B:n$C$F$$$?$N$G!"$b$7$h$m$7$1$l$P;H$C$F$/$@$5$$!#(B
http://dontaku.csce.kyushu-u.ac.jp/~ysonoda/wavetest.tar.gz 

$B;H$$J}$O!"(B
% makewave $B2;$N<~GH?t(B(Hz) $B=PNO%U%!%$%kL>(B [$BD9$5(B(msec)]
$B$H$$$&46$8$G;H$C$F$/$@$5$$!#D9$5$O>JN,$9$k$H(B2$BIC$G$9!#(B
$B%5%s%W%j%s%0<~GH?t(B 44.1KHz $BNL;R2=%S%C%H?t(B 16bit $B%b%N%i%k$N(B wav $B7A<0$N(B
$B%U%!%$%k$r@8@.$7$^$9!#4JC1$J:F@8%W%m%0%i%`(B(waveplay)$B$b$D$1$F$$$^$9$N$G(B
$BE,Ev$J%W%l!<%d$,$J$$>l9g$O;H$C$F$d$C$F$/$@$5$$!#(B

% makewave 500 /dev/stdout 1000 | waveplay

$B$H$d$k$H!"(B500Hz$B$N2;!JK\Ev$K7W;;$,$"$C$F$$$k$+$O<+?.$,$J$$$N$G$9$,(B...$B!K$,(B
1$BIC4V$J$j$^$9!#$?$@!"7k9=$$$$2C8:$J:n$j$G$9$N$G!"=PNO%U%!%$%k$,K\Ev$K(B
$B@5$7$$(B wav $B7A<0$K$J$C$F$$$k$+$O<+?.$,$"$j$^$;$s!#(B

futatuki> > $B$?$@!"(BRAW$B7A<0$O%X%C%@$J$7$N7A<0$J$N$G$I$3$+$K%3%a%s%H$r=q$$(B
futatuki> > $B$F$*$+$J$$$H%U%)!<%^%C%H$,ITL@(B(8bit/16bit , $B%5%s%W%j%s%0<~GH(B
futatuki> > $B?t(B, Signed/Unsigned, big-endian/litle-endian)$B$H$J$k$N$G8D?M(B
futatuki> > $BE*$K$O;D$7$F$*$/$b$N$J$i(BWAV(RIFF)$B$+(BAIFF$B$K$7$F$*$-$^$9!#(B

$B;d$bIaCJ$O(B wav $B7A<0$GJ]B8$7$F$$$^$9!#(B
$B$"$H$G!"$I$&$$$&7A<0$GJ]B8$7$?$+K:$l$F$7$^$&$N$G(B...

futatuki>   WAV$B7A<0$O%X%C%@$rFI$_=q$-$9$k$N$,LLE]$J$N$GHr$1$F$^$9!#(B
futatuki> $B05=L7A<0$b<+J,$8$c07$($J$$$7!#(B

$B$?$$$7$?9=B$$G$O$J$$$N$G!"0lEY%W%m%0%i%`=q$$$A$c$($P3Z$@$H;W$$$^$9!#(B
$B$?$@!"05=L7A<0$O3N$+$K07$($J$$$G$9$,(B...

---
$B6e=#Bg3XBg3X1!(B $B%7%9%F%`>pJs2J3X8&5f2J(B $B>pJs9)3X@l96(B $B=$;N(B1$BG/(B 
           $B1`ED(B $B5H1Q(B (Sonoda, Yoshihide)
     E-mail: ysonoda@dontaku.csce.kyushu-u.ac.jp
   URL: http://dontaku.csce.kyushu-u.ac.jp/~ysonoda/
