Sound and Its Phenomena

acoustic animals aperture apparatus bass bassoon bell bellows birds breath called cartilage catgut cause cavity chord clarinet clef cochlea column of air condensed dilated direct sound distance double fifth drum elastic ellipse embouchure epiglottis Eustachian tube external extremity feeble feet finger flute force fundamental note glottis harmonic echo harp hautboy hear heard horn human voice inner ear insect instru interval keys languet larynx length lips loud lower lungs membrane ments metal middle ear motion mouth mouth-hole mouthpiece muscles musical instruments noise number of vibrations octave organ orifice pan-pipe person piano pianoforte pipe pitch produced reed reed-pipes reflecting surface render reptiles resembling resonance semitone shock sonorous sound-rays sound-waves speak speaking-trumpet species stringed instruments strings struck syllables teeth thorax tions tone tongue tonic trachea treble trumpet tube of communication tympanum unison upper ventricles Ventriloquism violin vocal cords vocal ligaments voice walls whisper whistle wind windpipe