Qualities Of Sound2_2003.pps

PITCH, DURATION, INTENSITY AND TIMBRE OR TONE COLOR

DURATION PITCH

TIMBRE INTENSITY

PITCH IS THE QUALITY OF SOUND THAT LETS US DISTINGUISH BETWEEN HIGH AND LOW SOUNDS. IT DEPENDS ON THE FREQUENCY (NUMBER OF VIBRATIONS PER SECOND) OF THE SOUND WAVE . WHEN THE VIBRATIONS ARE FAST , YOUR HEAR A HIGH NOTE . WHEN THE VIBRATIONS ARE SLOW , IT CREATES A LOW NOTE . THE SOUND WAVES IN THE DIAGRAM SHOW THE DIFFERENT FREQUENCIES FROM HIGH TO LOW SOUDS .

DURATION IS ONE OF THE FOUR QUALITIES OF THE SOUND. THIS QUALITY LETS US KNOW HOW LONG OR SHORT A SOUND IS. THE DURATION DEPENDS ON THE PERSISTENCE OF THE WAVES THROUGH TIME. A TRIANGLE MAKES A LONG SOUND AND A WOODBLOCK MAKES A SHORT SOUND.

INTENSITY INTENSITY OR VOLUME IS THE QUALITY OF SOUND THAT LETS US DISTINGUISH BETWEEN SOFT OR LOUD. IT DEPENDS ON THE AMPLITUDE OF THE SOUND VIBRATIONS. THE GREATER THE VIBRATION, THE GREATER ITS AMPLITUDE WILL BE AND LOUDER THE SOUND. IN MUSIC, INTENSITY IS REPRESENTED BY DYNAMIC MARKINGS. DYNAMIC IS THE GRABATION OF SOFT AND LOUD NOTES. THESE SYMBOLS WERE CREATED BY COMPOSERS IN EIGHTEENTH CENTURY, IN ORDER TO PRODUCE MORE INTERESTING AND EXPRESSIVE MUSIC. DYNAMIC MARKINGS ARE WRITTEN USING ITALIAN WORDS.

TIMBRE OR TONE COLOR EACH INSTRUMENT HAS ITS OWN COLOR AND PRODUCES ITS OWN COLOR MOOD OR EMOTION. TIMBRE OR MUSICAL COLOR LETS US DISTINGUISH ONE VOICE OR INSTRUMENT FROM ANOTHER. IF A FLUTE PLAYS A NOTE ,FOR THE SAME LENGTH OF TIME , AT THE SAME VOLUME,YOU CAN EASILY DISTINGUISH BETWEEN THE TWO SOUNDS BECAUSE A FLUTE SOUNDS DIFFERENT FROM AN OBOE. THIS DIFFERENCE IS IN THE TIMBRE OF THE SOUNDS. TIMBRE CAUSED BY THE FACT THAT EACH NOTE FROM A MUSICAL INSTRUMENTIS A COMPLEX WAVE CONTAINING MORE THAN ONE FREQUENCY.

BY : AINHOA ,IRENE , ANDREA AND ISA