• When the hero bites into a apple is it "crunchy" enough for his macho image?

• When the heroine takes a shower, does the water sound "wet" and "sexy" enough?

• Do the ice cubes makes enough "clinck".....are the footsteps "forceful".. ..does the silk negligee "whisper"?

Among the techniques of modifying and recording sounds to create new sounds are these:  

• Speeding up and slowing down original sound to alter pitch and then recording at standard speed

• Running sounds through devices such as a harmonizer to digitally expand or compress without changing the pitch

• Using dip filters to boost or reduce certain frequency ands in sounds

• Using digital reverberation devices to create electronic sounds

• Using eletronic and computerized equipment to create synthetic sounds

Page 76 "Tampering with reality" in Robert L Mott: Sound effects, Radio, TV, and Film