Basics About An Organ Pump
|
|
|
|
|
|
|
|
Written by Nitiphat N.
|
|
Wednesday, 05 March 2008 |
|
|
The Organ pump, also known as reed organ, is a reed instrument. It consists of an air-actuated trembling reed, interrupting the acting stream of air at the frequency of vibration of the reed. The reed does not strike with the surface but is coupled with the air directly. The player pumps the bellows, which thereby supplies steady flow of air into the instrument, and this air is converted into puffs in a sequence caused by the back and forth movement of the reed.
Unlike a piano, an organ pump sustains the oscillator by itself. This means that the sound is produced as long as the air is allowed to flow into the reed because the organ pump works on the principle of vacuum. The air flows through the reed and draws into the main bellow.
The working procedure of an organ pump is as follows: first, when the reed is in its normal position, the air is forced through it. After this, the opening, through which, the air had been moved, suddenly reduces and the pressure on the side of the flow is also reduced. Due to reduction in the opening, the airflow also gets reduced.
Consequently the pressure on the side of the flow is increased and the reed restores its original position. Due to the energy produced, the reed exceeds the position, and this larger opening reduces pressure as the air flows through it, and ultimately, the reed come back to its normal position. There are two types of stops that exist in an organ pump, the speaking and the mechanical stops. The speaking stop manages the amount of air that arrives at the reed, and the mechanical stop acts as a secondary controller. From the information described above, it can be seen that Yamaha is the leading musical instrument manufacturer that you can trust and always have good quality of products.
|
