the ear as an acoustical transducer
TRANSCRIPT
-
7/21/2019 The Ear as an Acoustical Transducer
1/40
Ear as Transducer
Hair Cells
ustraflan
Acoustical
SocIety
Otoacoustlc Emissions
Cochlear Implant
Vol
J No 3
December
993
-
7/21/2019 The Ear as an Acoustical Transducer
2/40
For
high pe
rformance testing
,
HP
's n
ew
FFT
anal
y
ser
gives you multiple choice.
;;;..
r
. .
Any of t
he
above
n
B.
Vibration Analysis
\.
r
and Simul
ation L e ~ ~ J
o A. Aco
ustic
and
Realt im
e
1/3 Octave Analysis
o C.
Rotating
Mac
hinery and
Order Trac
king
Analysis
When you need a combinat ion of
h i g h r f o r m l l n ~ m > n t s
but don't want the expense ofmulti
pie instruments , there's only one
choi ce; Th e HP 3S665A Dymlmic
S ignal Anal y....r .
Because with the liP 35665A, t he
choice is yours: High-quahty eom
puted order tracking without ex
tern
alh
ardw8
1 l
.R ealtime oct.avt'
measure menta tha t m.....
specificati ons. Swept si n
em
ellllure
men18th at arc lIfa..t s sfrequency
rt' spon se Ilna lYllel'1land h llve the
added funct ions of an FFT ana ly... t
As well as curve-lit and synthesis,
arbitrary
sourceend
HPln
trument
BASICcontrol for wet au
tomation. You only pay for the op
t ions you select. And you can add
.oew options at any time righ t at
your ,.ite.
So,
leave your opt ions open . f or
details on all the choices th e HP
35665A giv
es y
ou, call Toula in oul'
Cus tomer Info
rmation Centre
on
131 347 and
ask
for your free lpy
of ou r Mec
hanieal
Te t Handbook
-
7/21/2019 The Ear as an Acoustical Transducer
3/40
EDITORIAL COMMITTEE:
Neville Fletcher
Marion Burgess
JosephLai
ASSISTING EDITOR:
LeighKenna
Vol21 No3
RTI LES
ONTENTS
December 1993
BUSINESS MANAGER:
MrsLeighWallbank
The Ear as an coustical Transducer
GKYates
Hair Cel ls - Mechanosensors and Motors
JOPlckles
.
ForAll
General
Business
subscriptions, exiracopies, back
issues, advertising, etc.)
MrsLeigh
Wallbank
POBox579
CRONULLANSW2230
Tel
02 5284362
Fax 02)5239637
ForAll EditorialMalters
articles, reports,
news,
bookeviews,
newproducts,elc
TheEditor,
Acoustics
Australia
Acoustics Vibralion Centre
AuslraiianDefenceForceAcademy
CANBERRAACT2600
Tel
06 2688241
Fax 06)2688276
email:[email protected]
Acoustics
Auslralia
is published bylhe
Australian Acoustical Society
AC,N,000712658
Responsibility
forthe
contenls
of
articles
reslsupontheaulhorsandnolthe
AuslralianAcousticalSociety,Articles
may be reproduced in full provided
adequate reference is
quoted.
Acouslics
Australia is abstracted and
indexed
in Engineering
Index,
Physics
Abstracts Acoustics Abstracts
Printed by
Cronulla Printing CoPtyLld,
16Cronulla Plaza,
CRONULLA2230
Tel
02 5235954,
Fax 02)
5239637
The Ear as an coustical Generator: Otoacoustlc emissions and
their diagnostic potential
E L Le Page, N M Murray, K Tran, M J Harrap....... 86
The
University
of Melbourne/Nucleus Multiple-Channel Cochlear
Implant
GM lark 91
Publica1ionsbyAusiraiians .
AustralianAcousticaISocietylnformation ...
Diary .
COVER:
he im ge on the cover illustr tes the b sic elements of the hum n uditory
system seepaperbyYates
-
7/21/2019 The Ear as an Acoustical Transducer
4/40
Ca ll us today for your FREE cata logue.
PRESENTING - THE DYNAMIC DUO
Force
Modal
Pressure
Vibrat ion
When you need to measure a dynam ic
response, we can provide a solution from
the P,C .B. range. Our engineers are
ava ilable to discuss your needs.
The Dynamic Sensors.
The P.C. B. Piezotronics fam ily of quartz
and ceramic sensors provide quality
measu rement in dynamic applications for:-
31st Janu ary, 1994.
2nd Februar y, 1994.
3rd February. 1994.
8th February, 1994.
10th February, 1994.
Acoustic
Rotating Machinery
Perth ,
Adelaide,
Melbourne,
Brisbane.
Sydney,
Vibration
Modal
VICfTAS /NT PH : (OJ) sss7277 FAX: (OJ) 79'6
NSW/ACT PH : (02) 74 0 FAX: (02 ) 748
0
44
QLD PH: (07) 841 4' FAX: (07) S41 4600
WA FREE PH: 11 816687 FAX: (03) 79' 6
We are of fering YOU an opportunity to see
the Zonic WCA in actio n. register
TO Y
for one of our FREE seminars to
be held in:-
AGENT:
SA PH: (OS) 36' 1000 FAX: (08) 36' 1001
The Dynamic Analyser. A Click and a Drag opens the window to a
world of analysis technology. The Zonic
WCA combines POWER and MULTI
CHANNEl , capability for:-
e
neees
M,D.
K.J . IJAymSON PTY. I.TD .
AC: > 0ln 0}1961
17 gcbema Street . Moorabbin , Vic JUl9
Vol 21 No. 3 - 74
-
7/21/2019 The Ear as an Acoustical Transducer
5/40
Aboul once each year we publish a Spec ial Issue In which invited contributors survey a field 01particula r interest in aOOUSl;CI,
The sub ject of Hearing Is central to our whole discipline indeed, witl'1outlhls particul ar biological sense, acoust ics as a
subject would hardly exist Beca use
01
lhis central Importance and the wide scope of the field of hearing , we could have
approached
rt
in many different ways,
and
pema ps some
0
mese
will be
\he
subj&ct of
other
special Issues in the future, Th is
lime we have c:oocentratlld on physiologi cal aspects of human hearing, end our invrted papers come 'rom four Af.,stralian
g
oupstna
t
have
made very
significant
oontr ibulion s to knowledge in trIis WM . The first two pape' dea l with the physiology
01normal hearing ,
and
lo low the path from tl'le ea.d f'\Jm Ihrougl'l the coctlIea 10 lhe hair cells and lhe M'Ural outpuI signal s
The nextcontributionllK mintlSlhec:llillS lt1alare provldedby the spDf1t8neousoscillat ion 01 the inner ea. i seII. wt1deltle linal
peper reports on the exerting progress that has
been
made in devl lopment 01a ooctllear implant
to
aid lt18 profoundly deaf. It
is clearly imposs
-
7/21/2019 The Ear as an Acoustical Transducer
6/40
I S/P=f - 0
OUSTEX
For Sound Control
NATIONAL ACOUSTIC
LABORATORIES
ACOUSTIC NOISE
SPECIALISTS
ArechX in RlMl beranl
Test FD WS erticrlg:
Applicab le 10 any surface
Safe . natural, recycled
Monolithic, archilectural finish
i s s i m . S o u n d i o w e r
. n d A t K < r p t
~ i
C>enenAalRsli cTcairl(l
CorI1'fdlemiveANlysisoiSoun:land
Vibralion
Mcl sun:'llltQ and Control uCOccup.aionl I S oi'IC
E l r c t n , ) . A c o u I ~ Ca lillnuon V, tn iol
A I I l I I
r p e m N o l M
i t N .
\ l l J l
ACOUSTEX PTY
.
LTD
.
9 Dissik Street
Cheltenham 3192
Melbourne Syd ne y
Phon. : 03
596
58 96 Phone , 02
t 8
1 I
1
03 586
56 21 F
I 0 2
11315
Ml: &SUJemo:1'l
andCOllin
of OccupallOml Noi'IC
ReferenccandYloniLoring Audiomc:uy
Reoidel\lia' ard r o n m Noise
. l 'duCi liun l nd Train ing ACO\ISlicR
C \C I
h
126 Grcville Slm:l. Chatswood, N.S.W. 20(,7
Ph: (02) 4126S00
Naliolull Acoustic Laboratories is a
Division
tlf
AlIslJ1ian HearingSelviccs a
Commonwealth
Oovemrreru
Aut horll)'
Vii
A Jlf\'
-
7/21/2019 The Ear as an Acoustical Transducer
7/40
-
7/21/2019 The Ear as an Acoustical Transducer
8/40
-
7/21/2019 The Ear as an Acoustical Transducer
9/40
-
7/21/2019 The Ear as an Acoustical Transducer
10/40
-
7/21/2019 The Ear as an Acoustical Transducer
11/40
-
7/21/2019 The Ear as an Acoustical Transducer
12/40
-
7/21/2019 The Ear as an Acoustical Transducer
13/40
-
7/21/2019 The Ear as an Acoustical Transducer
14/40
-
7/21/2019 The Ear as an Acoustical Transducer
15/40
-
7/21/2019 The Ear as an Acoustical Transducer
16/40
-
7/21/2019 The Ear as an Acoustical Transducer
17/40
-
7/21/2019 The Ear as an Acoustical Transducer
18/40
,_ .
.
.
. -
.
.
'
U
u .. ... - . ,a ... .. ..
to . .
Frequency (kHz)
Time (msl
Frequency 1kHz)
~ 10
Time (rns) Time (ms)
FIfJUff}
3.
SulJiecrive and oIJi/ive m eiUl XeS of left and
right
ears of one subiect : Panels A, pure tone audiogram IdB
hearing lfJ ,eI/; Panels 8. fflK/U# c y depl'fldenc e of the cubic distort ion tone 2(, - I. dB SPL/ and
r o u n mse
(grey Mea): Panels
C,
cross p $peC t tum (black areal of pair of lime
-
7/21/2019 The Ear as an Acoustical Transducer
19/40
-
7/21/2019 The Ear as an Acoustical Transducer
20/40
-
7/21/2019 The Ear as an Acoustical Transducer
21/40
-
7/21/2019 The Ear as an Acoustical Transducer
22/40
-
7/21/2019 The Ear as an Acoustical Transducer
23/40
-
7/21/2019 The Ear as an Acoustical Transducer
24/40
-
7/21/2019 The Ear as an Acoustical Transducer
25/40
-
7/21/2019 The Ear as an Acoustical Transducer
26/40
-
7/21/2019 The Ear as an Acoustical Transducer
27/40
-
7/21/2019 The Ear as an Acoustical Transducer
28/40
celebrating years
helping people to hear
For more informslion f1 the Cochlear
22 Channel implanl oontaet:
Cochlear Ply Limited
14 Mar l Rd
Lane Cove
NSW 2 66
AUSTRA U A
Ph 2 4286555
F...... 024286539
ACN 2 6 3
A
SINGLE
SOURCE
SOLUTION
TO
NO
ISE
MEASUREMENT AND CONTROL
W cm
j O U a I i M
n..free
< n J , N o O e ~ ~
< n J ~ I > e _ 1 l c i
ox,JeCI ...-.:IodOcefor
oon cIi
ilecision ndi>g
-
7/21/2019 The Ear as an Acoustical Transducer
29/40
-
7/21/2019 The Ear as an Acoustical Transducer
30/40
-
7/21/2019 The Ear as an Acoustical Transducer
31/40
-
7/21/2019 The Ear as an Acoustical Transducer
32/40
-
7/21/2019 The Ear as an Acoustical Transducer
33/40
-
7/21/2019 The Ear as an Acoustical Transducer
34/40
-
7/21/2019 The Ear as an Acoustical Transducer
35/40
-
7/21/2019 The Ear as an Acoustical Transducer
36/40
d Metal Products Pty td
ACOUSTIC
SII EETMETAL
ENGINEERS
Phone:
03
793 2340
Fax:
0 3)
794
5193
FACTORY 1/ 21 GREEN ST
DOVETON VIC 3177
ALCOAOFAU
STR LI
HOWDENSIRO O
PRO
CT:
LIENT:
ENVIRONMENT
AL
NOI SE
O N T R
O
L
YOUR
SOLUTI
ON TO
INUSTRI L NOISE
PRO L MS
MANUFACTURE RS OF ACOU STIC
Louvres Doors Encosures
Silencers Steel Fabrications
SUPPUERSOF
EQUIPM
ENTFOR
DESIGN MANUFACTUR
E
INSTAl l
Demoun
table Panel Enclosures
Modular Acoustic Panels S1C 33 to 41
Acoust ic Doors NATA Tested
Industria l Grade Si lencers
Audio Booth s
Telephone Booth s
Absorptive Wall Un ings
Approved Fabricator
And
Supplier To
Government Utilities
QA Control
Dl uy
o ~ r a
Incorpurating IIO ......
to down-load
dallli
nlo ) OUf ro mpulff .
Cmnp lftf ly wuth tr prollf nd t l ~ d
Cflol
actln o rl
nform,atlon.
Phon
e: 02) 755
1077
50 RrVERSIDE ROAD
CtllPPI
NG NORTON, N.S.W. 2170
Vol 21 No.3 - tOO
-
7/21/2019 The Ear as an Acoustical Transducer
37/40
AUSTRALIAN ACOUSTICAL SOC
IETY ENQUIRIES
-
7/21/2019 The Ear as an Acoustical Transducer
38/40
' -
SOCETYSUBSCRIPTIONRATES
AS S C ie t aC l r h r
hyIIWII'..... ~ n
~ ~
Froml APRL l993
membtrs/ li
p
Ellqulrln f'9lldlrl9 l11tf1lbtt111i1lIllCl .m l lnlrlg ,. . I l Ip tllouldN
w i I l b e a l o l o w s
dirlellolllOheoppropf\ltl
Slm
DMliOl1See,
bryll
.,,6er.
.uS-WADMIlon
NlIbrof
al ldMembel sas
AA$ -NSWOM' 11lIl
AlIiiateanclSubsoiber,________
'
Olio.1010
S
'
cel a c.rcr. FoiIIGatOll
WEST PER P l 63n
P,ivaleBaQ , DMlUNGHI/RST2010
AAS OunslI IIltDlriIlon
SecldrFlLl.Ini; otll
~
C.-f1of1RlIIlbIP1ylJll
1
(091361
15200
ANNU
AL
CONFEREN
CE
TeI(02)9695668
27S\a1ion St
Cqlieiofpa lconIere
octl
proc
eedil1
gs
A AS
SADMtlon
INDOOROOPl lV416l1 AAS_VlctoiiDlvlslon
CI-Qep8Ilmertol l.lodl&'\l
S C;M RMRumblt
PO
8Q.o
.17
t.l......
St PO
mavbeorl1erad lrom
u . .,
yatAdoJ
.,.,.
101107)3789211
MEl.lCIlJ\NE 3000
i c a I i o l 1 O l t i c
~
Sec:loIrCStnMI
Aus1ral
ianAcolJ,lieaISOCety
SKMtAClIrICI
1el 03)19oI
om
tST
aykJ
B A
oacI,
OVRAl,.2158
rtl (08)2285698Fao(OIl)2;24G464
Fb (03j1lMSI89
ACOUSTICS
AUSTRALIA
INFORMATION
GENER
ALBU
SINES
S
PR
NTING
, ARTWORK
ADVE
RTISING
RATES
' AdYMIlng Sublcrlpti_
W j l a m
B W
Norl-flem
-
O
~ ~
mo
16CIOI1UIlt FOIala
CRONU.LA2230
1/
1
Page
el (02)S284362
5 9 S 4
'i2Page
ar
Fax(02)
S239637
FaxlO2j5239637
If.l
P
9 l
225
ARTICLES
REPORTS
SUBSCRIPTIONR
ATES
1994
1
4
Page
200
tso
NEWSBOOK R
EVIEWS
SpoIcolDUf
50
perlXllou
NEWPR
ODUCT
S
''''
AS
AS
Prepared lrlWt
P O O t O Q O o q : i j l
' '''
AS
AS
95
COlum
nrate:
per
em
(113p';dlh
Th Eli1or
' '''
A 95 AS131
Dlacounl lltea: (3
l;01 lMQl1
r.elds inildvanol
AcousksAuslralia
Acoustic:s
&
Vibratiorl Centre l M r s e a s ~ g o b y a f m a i
--
H
A
NewSubKrtpllon 3:ni.DiIoCOlft:
u s t a l n i n Q ~
'
ANBERRA ACT2 ))
33'OIscouIllb' 8ltra
-
7/21/2019 The Ear as an Acoustical Transducer
39/40
A personalised SLM
-
7/21/2019 The Ear as an Acoustical Transducer
40/40
to match your needs
Environmental and industria l noise measurements
using Precision Integrating Sound Level Meter Type 2236
and Sound Level Calib rator Type 4231
Noe. lle
al ' : Type 2236 111... ..
.,
a ..
lin\ oI ;Oundle ....
' len.
i l s_ ' ' ' 'Yrew. . . ,_ ''' tu.. 5_ d.
P . I_ : .. , e o c n l O n 1 I ' > e . _ o 1 i c o f E w i r o n < ' o o I I l d I ~ I I l j'goero$l .. lII'Jl'l*I'eu
UPl
..
bl. : Can
be ull'MOe lemure. ; d.,pl. y, non-volWememoe; an .... f