ð ãã¥ãŒãã³ã°åºæºé³åç
匊ã®ãã¿ã³ãæŒããšåºæºé³ãåçãããŸããããäžåºŠæŒããšåæ¢ããŸãã
ã®ã¿ãŒã»ããŒã¹ã»ãã€ãªãªã³ã»ãŠã¯ã¬ã¬ã»ãã§ããªã©ã楜åšããšã®æšæºçãªãã¥ãŒãã³ã°ã«ãããå匊ã®åºæºé³ãåçããããŒã«ã§ãããã¥ãŒããŒãæå ã«ãªããšãã®é³åããã®åèã«äœ¿ããŸãã
äœ¿ãæ¹
- ãã¥ãŒãã³ã°ãããæ¥œåšãéžã³ãŸãã
- 鳎ãããã匊ã®ãã¿ã³ãæŒããšããã®é³ã®åºæºåšæ³¢æ°ã®é³ãåçãããŸãã
- ããäžåºŠæŒããšé³ãæ¢ãŸããŸããå®éã®æ¥œåšã®é³ãšããããèãæ¯ã¹ãªãã調匊ããŠãã ããã
ãããã質å
åšæ³¢æ°ã¯ã©ã®ããã«èšç®ãããŠããŸãã?
åœéçã«æšæºãšããããA4 = 440Hzããåºæºãšããåäºå¹³ååŸã®èšç®åŒ(åé³ããšã«2ã®12乿 ¹å)ãçšããŠãåé³ã®æ£ç¢ºãªåšæ³¢æ°ãç®åºããŠããŸãã
ã¹ããŒããã©ã³ã®ã¹ããŒã«ãŒã§ãæ£ç¢ºã«äœ¿ããŸãã?
å€ãã®å Žååé¡ãªã䜿ããŸãããå°åã¹ããŒã«ãŒã¯äœé³å(ç¹ã«ããŒã¹ã®äœã匊ãªã©)ã®åçŸæ§ãäœãããšããããŸããå¯èœã§ããã°ããããã³ãã¹ããŒã«ãŒã®äœ¿çšãããããããŸãã
å€åãã¥ãŒãã³ã°(ãªãŒãã³ãã¥ãŒãã³ã°ãªã©)ã«ã¯å¯Ÿå¿ããŠããŸãã?
ããããçŸåšã¯å楜åšã®æšæºçãªãã¥ãŒãã³ã°ã®ã¿ã«å¯Ÿå¿ããŠããŸããå€åãã¥ãŒãã³ã°ãè¡ãå Žåã¯ãç®çã®é³åã«å¯Ÿå¿ããåšæ³¢æ°ãä»ã®ããŒã«(é³ååšæ³¢æ°å¯Ÿå¿è¡šãªã©)ã§ã確èªãã ããã