!. Two, !. African, . Ebony, !. Santos, !. Rosewood et al., ! which! seem!quite!different!between!them!and!with!for!chanters!from!the!same!wood

!. Tree, !. , !. , and !. Wood, ! In! experiment! A! (figure!1),!the!two!chanters!in!African!Ebony!were!very!differently!assessed.!The!same!observation!was! done,! to! a! lesser! degree,! for! Santos! rosewood! and! Grenadilla

!. Boxwood, !. , !. Service, !. Tree, !. et al., have!similar!quality!ratings!in!experiment!A!were!also!the!chanters!which! were!less!discriminated!in!Experiment!B!(and!the!absence!of!large!quality!differences!in!Experiment!A! seems!to!be!not!due!to!the!difficulty!of!the!task)! ! 4.%SIGNAL%ANALYSIS% % Experiments! A! and! B! suggest! that! the! perceptual! effect! of! wood! is! negligible.! Objective! measurements! were! also! carried! out! on! recordings! of! isolated! notes! (from! G3! to! C4),! with! the! same! chanters!as!in!experiments!A!and!B:!Sound!Pressure!Level!(In!Pascal!and!in!dB),!OE!cue!(The!logarithm! of! the! ratio! between! the! sum! of! amplitudes! of! odd! harmonics! and! the! sum! of! amplitudes! of! the! fundamental! frequency! and! the! even! harmonics),! spectral! centroid! (average! and! temporal! evolution),! irregularity!cue!(which!indicates!to!what!extent!energy!is!constant!through!consecutive!spectral!bands),! skewness!(which!measures!how!far!a!distribution!is!asymmetric),!kurtosis!(measures!whether!the!peak! is!higher!or!lower!than!that!of!a!normal!distribution),!ratio!Ai/A1!(between!the!energy!of!the!harmonic!i! and!the!energy!of!the!fundamental!frequency),!ratio!Ai

!. The, !. Oe-!-cue, !. Reeds, and . D14, 4!for!cane!reeds,!p=0.002!according!to!the!MANOVA),!and!the! spectral!centroid!(6710!for!synthetic!reeds,!6405!for!cane!reeds,!p=0.005!according!to!the!MANOVA).! Only! one! physical! parameter! was! significantly! different! between! the! woods:! the! spectral! centroid! (figure! 5,!p=0

!. Rosewood, !. African, and !. Ebony, ! This! result! is! not! really! related! to! the! perceptive! results! of! previous! experiments.!However,!the!global!absence!of!large!objective!differences!between!signals!from!different! woods! is! in! agreement! with! experiences! A! and! B,! which! had! not! highlighted! perceptive! differences! between!woods.!! It! is! worth! noting! that! no! physical! parameter! was! significantly! different! between! chanters,! independently! of! their! wood.! Perceptive! results! have! shown! differences! between! chanters,! independently! of! their! wood.! However,! differences! in! quality! assessments! (in! experiment! A)! were! ! 15! globally!low,!and!all!these!results!indicate!that!the!differences!between!chanters, p.2425

!. Figure, !. African, . Ebony, !. Santos, !. Rosewood et al., ! Spectral! centroid! for! the! five! woods! (namely!

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