d(ãã·)ãªã®ã§ãB(ãã«)ã®1/10ã
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11dB
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>
> ã£ã€ãŒããšã¯1Bã¯1dBã®10åã§âŠâŠâŠ
>
> 11dB
> ããããã
ããããŸãããã©ããæå³ãã€ãããŸããã§ãããäŸãã°ã
http://www.mizunaga.jp/decibel.html
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"Sawaki, Takayuki"ããã¯æžããŸãã
> > d(ãã·)ãªã®ã§ãB(ãã«)ã®1/10ã
> > ã£ã€ãŒããšã¯1Bã¯1dBã®10åã§âŠâŠâŠ
> > 11dB
> > ããããã
> ããããŸãããã©ããæå³ãã€ãããŸããã§ãããäŸãã°ã
> http://www.mizunaga.jp/decibel.html
> ã«ãããããªæç®è¡šãšã¯æå³åããéãããšãªãã§ããããïŒ
dB ã¯ãã¯ãŒã®å°ºåºŠã§ã10 å¢ãããš 10 åã«ãªããŸãã
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10åã«ãªããš20å¢ããããšã«ãªããŸãããåºæ¬ã¯ 10 åã«ãªããš dB ã§ã¯10 å¢ããã
ãŠãªããã§ã1dBã®10åã¯(10åã«ãªããšdBã§ã¯10å¢ãããã)11dBãšãããã¿ã«
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PROJECT TEAM ïœïŒ§ïŒ¡ é«æŽ¥æ£é ta...@doga.jp
TBD0...@nifty.ne.jp
PROJECT TEAM DoGAã®ããŒã ããŒãž â http://doga.jp/
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/ ã§ããããã»ããã㟠http://www.ht.sakura.ne.jp/~delmonta/
IIJIMA Hiromitsu, aka Delmonta mailto:delm...@ht.sakura.ne.jp
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article <bk8h8m$2c6m$1...@maha2.doga.co.jp>,
Masamichi Takatsu <ta...@doga.jp> writes:
> é«æŽ¥@ããŒã¬ã§ãã
>
> #ãã®ãã¿ããããããã«ã¯ãŸããŸããããªãã§fj.jokesãããªããã ããã£ãŠ
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> èšäº <3F66DFC7...@yahoo.co.jp> ã§
> "Sawaki, Takayuki"ããã¯æžããŸãã
>
> > > d(ãã·)ãªã®ã§ãB(ãã«)ã®1/10ã
> > > ã£ã€ãŒããšã¯1Bã¯1dBã®10åã§âŠâŠâŠ
> > > 11dB
> > > ããããã
> > ããããŸãããã©ããæå³ãã€ãããŸããã§ãããäŸãã°ã
> > http://www.mizunaga.jp/decibel.html
> > ã«ãããããªæç®è¡šãšã¯æå³åããéãããšãªãã§ããããïŒ
>
> dB ã¯ãã¯ãŒã®å°ºåºŠã§ã10 å¢ãããš 10 åã«ãªããŸãã
> é»å§ã®å Žåã¯ã10åã«ãªããšæµããé»æµã10åã«ãªã£ãŠãã¯ãŒã¯100åãšããããšã§ã
> 10åã«ãªããš20å¢ããããšã«ãªããŸãããåºæ¬ã¯ 10 åã«ãªããš dB ã§ã¯10 å¢ããã
>
> ãŠãªããã§ã1dBã®10åã¯(10åã«ãªããšdBã§ã¯10å¢ãããã)11dBãšãããã¿ã«
> ãªãããã§ããã
http://www.mizunaga.jp/decibel.html
ã¿ããã«ãã21dBãã«ããŠãè¯ãã£ããã§ããããåºæ¬ãã¯10log(x)ã§ãããã
ã©ããªã£ãŠãããšãããš...
> > > > ã£ã€ãŒããšã¯1Bã¯1dBã®10åã§âŠâŠâŠ
1dBã®å¢å¹
åšã瞊ç¶ã«10åã€ãªãã°ãå
šäœã§ã¯10dBã§ãã1dB à 10 = 10dB = 1B
+---+ +---+ +---+ +---+ +---+ +---+ +---+ +---+ +---+ +---+ +----+
-|1dB|-|1dB|-|1dB|-|1dB|-|1dB|-|1dB|-|1dB|-|1dB|-|1dB|-|1dB|- = -|10dB|-
+---+ +---+ +---+ +---+ +---+ +---+ +---+ +---+ +---+ +---+ +----+
> å®é1Bã10dBã«ãªãã§ããããšããã£ãŠãããã§ãããã»ããšå²ããããªãã
1B = 1 Ã10d B = 10dB ã§ããå²ãç®ãããªãã®ã§å²ããããŸããã:-)
ãªããããããªãšããã¯ãããŸããã! ãã£ãããã解ãããªããªã£ã?
# dBã®äœåããšããã®ãããããã®ã§ããããããŠãããªã
# 1Bã¯0B(=0dB)ã®ããã«10åããšãã£ããšããã§ããããã
# 1dBã®ããã«10åãªã11dBã§ãã£ãŠãŸãã
hi...@eve.u-ryukyu.ac.jpãå®æ¬ä¹
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http://ja.wikipedia.org/wiki/%E3%83%91%E3%83%BC%E3%82%BB%E3%83%B3%E3%83%88
http://homepage2.nifty.com/woodyhayashi/toeic/roepct.html
hi...@eve.u-ryukyu.ac.jpãå®æ¬ä¹
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"Sawaki, Takayuki" <fi_s...@yahoo.co.jp> wrote in message news:3F67D132...@yahoo.co.jp...
> IIJIMA Hiromitsu wrote:
> > > ã茞å
¥ç©ïŒç¹ã«ãã©ã³ã¹ã ãšãã€ã¿ãªã¢ã ãšãïŒã®ã¯ã€ã³ãšãæ°Žã ãšãdlåäœã§
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> > ãã€ããããã ãšãcl åäœã®ãã®ããããããªã
>
> ããããªããç§ãã²ã©ãåéãããŠããããâŠâŠã(-_-;
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