You can do this by holding the guitar flat on its back, with the sound hole facing upward.

你能做到這一點(diǎn)的單位办公室秘书无码激情AV，其控股的吉他回，面臨向上聲洞AAAA一,黄片。

And the main tube has seven sound hole, diapason are 3 5 6 7 1 2 3 5 6, sub-tube just emit one sound sostenuto.

葫蘆絲的構(gòu)造較特殊www内射学生妹羞羞视频，所用材料取自天然，純手工完成制作過(guò)程99视频黄片。

BODY: This is the part with the sound hole in the front.

身體：這是與完善的一部分洞前方色色播放。

In the sound, the two voices blend as much as possible, focus on the sound hole on the wheel ...

在發(fā)聲時(shí)，兩人的聲音盡可能地融合午夜大片无码体验区试看120秒，注意力集中在發(fā)聲的輪穴上一线日韩精品视频在线。。亚洲国产午夜一区二区。免费看污的欧美操。

The location of sound hole has slight effect on the pitch.

四、音孔位置與對(duì)音高亦有些微影響国产免费一区二区三区免费，在相同組合面積的條件下亚洲玖玖色视频，開(kāi)放與氣窗同側(cè)或相鄰的音孔，會(huì)產(chǎn)生較低的頻率meiav色在线。

BRIDGE: The Bridge is normally located on the front of the body, by the sound hole, and on the side of the hole opposite to the neck.

橋：橋是通常設(shè)在最前排的身體欧美日韩123级黄色片，用音洞，而站在一邊的洞對(duì)面的脖子伊人玖草。

When the microphone array is consisted of an omnidirectional microphone and a unidirectional one, the position of the main sound hole should be set in the middle of the two microphones.

當(dāng)使用的是一個(gè)全指向麥克風(fēng)配一個(gè)單指向麥克風(fēng)時(shí)www.人人干人人艹人人摸，主音孔的位置要在二個(gè)麥克風(fēng)的中間

Then another secondary sound hole is requested to set for the rear vent of the unidirectional microphone to receive sound.

另需一個(gè)副音孔，供單指向麥克風(fēng)的后氣孔收音用

The point is very important for a normal tone , which is that you should keep breath of your sound hole, otherwise, the sound you blow is not exact and it was harsh for audience.

按孔部位 part of press hole 要吹出一個(gè)正常的音国产精品麻豆A片大全，有一點(diǎn)是必需做到的色淫影视a，凡要求關(guān)閉的音孔是不能漏氣的，一絲都不能漏，否則免费久久性爱视频，發(fā)出的音則不準(zhǔn)確有什么好看的在线看黄色网站，讓人感覺(jué)刺耳不實(shí)在。

In order to improve the discrepancy of Ocarina, we used air window of whistle, air chamber of syringe together with the sound holes of Ocarina in making a sound adjustable Ocarina. The frequency spectrum was analyzed with computer sound fixing and ranging software and statistical software was employed to analyze the effects on pitch of area of sound hole and cubic of air chamber.

本研究為改良陶笛的缺失黄色视频免费在线无码观看，利用哨子的氣窗欧美自拍日韩专区在线、針筒的氣腔與陶笛的配孔式音孔結(jié)合，自創(chuàng)一種可調(diào)音的陶笛亚欧日本VA中文字幕久久，并以電腦測(cè)音軟體分析其頻譜日本香蕉视频在线观看，利用統(tǒng)計(jì)分析其音孔面積與氣腔體積對(duì)音高的影響。