The khong wong yai (Thai: ฆ้องวงใหญ่, pronounced [kʰɔ́ːŋ woŋ jàj]) is a circle with gongs used in the music of Thailand.

[3] Khong Wong Yai can be considered a musical instrument with a long history.

Continuing to Vietnam, Cambodia, Laos, Myanmar, Malaysia, Indonesia and Thailand pointed out that The throttle drum was the origin of the gong because of the metal used to create it.

In addition to the nature of the metal alloy The evolutionary path of the throttle drum also went through its development as a musical instrument of the same family.

with a diameter of 2 meters, found at Wat Phra That Hariphunchai in Lamphun Province It is estimated to be around the 13th century.

[4] Khong Wong Yai has 2 important components as follows: The gong shop consists of the following sections: 1.

Luk Mahuat is made of wood to make a round wavy round, flanked by glass beads, notched head and curved cut to support the rattan at intervals throughout the circle.

Khon gong made of thick wood with a convex central shape.

Takhu wood is a small bamboo drilled into the child to block the rat bridge.

A crutches on or a gong stick is a thin plank of wood that cuts the head at the end of the concave along the rattan line.

As well as the evident changes in pitch, there is beating at rates of 6 and 12 per second in the 2nd and 3rd pairs of tones, and roughness at increasing rates that correspond to differences between a 'frequency' of 2*378 = 756 Hz and the upper tones' frequencies of 774, 780, 786, 792, and 798 Hz, amounting to 18, 24, 30, 36, and 42 per second.

In the figure, each octave lasts approximately 850 milliseconds, i.e., ~0.85 seconds, and differences in beating and roughness correspond to 6, 12, 18, 24, 30, 36, and 42 changes in the waveforms' amplitudes from the 2nd to the 8th pair of tones.Also audible, especially in the initial tone-pairs, is a non-harmonic partial above the upper tone that corresponds to two frequencies of much smaller amplitude ~3300 and ~3100 cents above the lower tone.

[7] The Khong Wong Yai is called Gong in English but different in number to tune the sounds, beeswax with not exactly amount is pasted under the bossed.

It is a Thai's percussion instrument usually involves some kind of striking on nipple gong.

The aim of this analysis is to study the eigen modes and find out the important parameters to generate sound frequency which are excited on the bossed or nipple gong by finite element analysis.

In this paper the inertia relief method is to study the sound frequency of the Gong.

[1] The hand patterns for the Khong Wong Yai very much depend on the shape of the specific melody.

But the patterns become increasingly complex when the melody appears as a single melodic line.

A symmetrical alternation of the right and left hands, a pattern which is imposed by the 'zigzag' profile of the passage.