Loudness Pitch

  • June 2020
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B'µ#=$08 FletcherMunson

@()*&+,+-+' - 4"'6)20+"(A 711)"' '#, +-1 • Loudness 71+'&- (intensity)

• C '()*&+,+-+' 051'" 051'" - !"#$%&'& #&( )"#!*&(

©2006, dani joss

©2006, dani joss

1

B'µ#=$08 FletcherMunson

2

!"#$%&"' '()*&+,+-+'; 1,-µ' 1' (%1)*µ0 +-1 023+-&• ./0" ‘#,&) 4*1'+% 051'" 4*, 6)278

• B'µ#=$08 5&-8 '()*&+,+-+'8 405/1)*1 +- 4"'6)2% &0 dB #)* 7/0" • D'8 - 71+'&- +,1;1 4"'6,2;1 &*/1)+A+;1

4*1'+,+02'’; #02"&&,+02)" %1:2;#)" <25&()*1 ,+" • 9" 5dB '=>-&- 71+'&-8 051'" $"?,+02) '#,

3&+0 1' '()=?)1+'" 54"08

• 9 '2":µ,8 #)* +)*8 '#)4540+'" µ0+2"7+'"

4"#$%&"' '()*&+,+-+' 013 10dB µ%$$)1 #'2'#%1;

&0 phons (+) )#)5) µ0 +- &0"2% +)* )25E0+'" '#, '*+A1 +-1 ('µ#=$- ('" 051'" '2":µ-+"(% 5&) µ0 +' dB SPL &+' 1000Hz)

'#)40"(1=0+'" ,+" 0>'2+%+'" ('" '#, • @*+, +- &*/1,+-+' ('" '#, +- ?01"(A 71+'&-

©2006, dani joss 3

©2006, dani joss 4

I=1:0+)" J/)"

@1+5$-F- GF)*8 =F)8 (pitch) ?510+'" '1+"$-#+, &0 • H) #02")4"()=8 A/)*8 ('" 051'" ?01"(%

)" &=1:0+)" A/)" '#)+0$)=1+'" '#, • K#0"4A #)$$% -µ"+)1)0"4A (=µ'+', - &=?(2"&A

'1%$)?) +-8 &*/1,+-+'8 +-8 +'$%1+;&-8

+)*8 051'" #") 4=&()$-

#") #)$$)5 A/)" ,µ;8 051'" &+-1 )*&5' • 9" &=1:0+08 +'$'1+3&0"8. I*/1% &+)*8

- 711)"' +)* ‘4"#$%&")*L0>'2+%+'" • @6)= '#, +- &*/1,+-+', 4"'6)20+"()5 A/)" :'

(&/04,1) #02")4"()=8 A/)*8 )" 0#"µ72)*8 +'$'1+3&0"8 :' 7/)*1 (&/04,1) '2µ)1"(A &/7&-

7/)*1 4"'6)20+"(78 &/7&0"8 71+'&-8 '1% #02")/A

©2006, dani joss

©2006, dani joss

5

@#$)5 +,1)" •

6

@#$)5 +,1)"

&*/1,+-+08 (%+; '#, #025#)* 200Hz, • I+"8 +) JND 051'" &+':02,, #)* &-µ'510" ,+"

JND: Just Noticeable Difference (D,$"8 '1+"$-#+A 4"'6)2%). K51'" ,2)8 +-8 M*/)6*&"(A8

,&) #76+0" - &*/1,+-+' +,&) 4*&()$0*,µ'&+0 1' >0/;25&)*µ0 4*, +,1)*8

+) ,2") #)* µ,$"8 ('" • K51'" ('+'$'<'51)*µ0 ,+" 7/0" '$$%>0" +) =F)8

>200Hz, +) JND 051'" #025#)* • N"' '1%$)?) +-8 &*/1,+-+'8

01,8 '#$)= (=µ'+)8 051'" 71' µ"(2, ($%&µ' +)* • I*1A:;8 -µ"+)15)*, '$$% 0>'2+%+'" '#, +-1

014"'672)1 ,+" - &*1%2+-&- +)* • K51'" JND ('" +-8 &*/1,+-+'8 051'" &/04,1

&*/1,+-+', +-1 71+'&-, +- 4"%2(0"' ('" +-1 +'/=+-+' '$$'?A8 &*/1,+-+'8 ©2006, dani joss 7

&+':02A *#)4"'520&- +-8 '1+5&+)"/-8 &*1%2+-&-8 +)* 0=2)*8 +;1 (25&"µ;1 E;131

©2006, dani joss 8

O'2%?)1+08

O'2%?)1+08

• .1+'&/'µ-$)5 A/)" '()=?)1+'" /'µ-$,+02)" • 9" ,&) '*>%10+'" - 71+'&A +)*8

• !"%2(0"' µ"(2,+02)8 051'" 71'8 A/)8, +,&) • P&) #") '#2)&4",2"&+- :' 051'" - &*/1,+-+% +)*

• 9" F-$)5 '()=?)1+'" F-$,+02)" &-µ05) '$$'?A8 051'" #025#)* • H) 2000Hz

#;8 71'8 '#0"2)0$%/"&+)8 &0 • Q7µ0 4"%2(0"' #'$µ,8 7/0" 0172?0"' &0 ,$) +) 6%&µ', '(,µ' (" '1 7/0" 4-µ")*2?-:05 '#, µ"' '#$A '2µ)1"(A +'$%1+;&©2006, dani joss

©2006, dani joss

9

10

I=1:0+)" A/)"

@2µ)1"(78

#-?78 A/)* 7/)*1 +- 4*1'+,+-+' • !"%6)208 1' +'$'1+31)1+'" &0 #)$$78 &*/1,+-+08

• O./. D"' /)24A µ)*&"()= )2?%1)* #'5E0" +- 1,+' / (220 Hz)

+'*+,/2)1' (,#;8 )" /)2478 ('" )" &;$A108 '72')



• R' '()=?)1+'" ('" !0µ."-1)( &+' 440,

@*+78 )" &*/1,+-+08, $,?; +)* 6'"1)µ71)* +)* &*1+)1"&µ)=, :' 051'" '(72'"' #)$$'#$%&"' +-8 /'µ-$,+02-8 '#, '*+78 #)* $7?0+'" +,µ)%-.(

660, 880, 1100, 1320Hz (+$ (4-$'4A 0#5 2, 3, 4, 5...) µ0 (%#)") &*14*'&µ, 01+%&0;1 ('" 6%&0;1

©2006, dani joss 11

©2006, dani joss 12

@2µ)1"(78

S;+0"1,+-+'

)" (:0;2-+"(% %#0"2)") +,1)" • @*+)5 4"'µ)2631)*1 +) 6%&µ' +)* A/)*

• Brightness $0?,µ01)" 6;+0"1)5 A/)" #02"7/)*1 • 9" '2(0+A 0172?0"' &0 &*/1,+-+08 #%1; +-8

A/)8 &+- 6=&- 401 #02"7/0" µ,1) • B'171'8 '#)$=+;8 '2µ)1"(78 &*&+'+"(78

:0µ0$5)* +)*8 (7/)*1 4*1'+78 '2µ)1"(78)

&*/1,+-+08

• @1 ,/", &*1A:;8 '()=?)1+'" ‘µ)*1+)5’ :' *#%2/0" 0172?0"' (%+; '#, +• I#%1"' :0µ7$") &*/1,+-+'

A/)" #02"7/)*1 µ- '2µ)1"(% • O)$$)5 &*&+'+"(% (,#;8 )" µ0+'$$"()5) ('" :,2*<) (µ- #02")4"(78 +'$'1+3&0"8) ©2006, dani joss 13

GF)8 - '1+5$-F- +)* =F)*8 0>'2+%+'" • K1,&; '#, +- :0µ7$") &*/1,+-+', '*+, 401 051'" '1'?('&+"(, =#'2>- µ02"(31 '2µ)1"(31 &*/1)+A+;1 • C'2(05 ?"' 1' ('+'$%<0" ) 0?(76'$)8 +-1 '1+5&+)"/- :0µ7$"), '(,µ' (" '1 '*+A '#)*&"%E0" (,#;8 &+) +-$76;1)) $7?0+'" 6'"1,µ01) +-8 '#)=&'8 • @*+, :0µ0$5)* (missing fundamental) ©2006, dani joss 15

©2006, dani joss 14

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