<body><script type="text/javascript"> function setAttributeOnload(object, attribute, val) { if(window.addEventListener) { window.addEventListener('load', function(){ object[attribute] = val; }, false); } else { window.attachEvent('onload', function(){ object[attribute] = val; }); } } </script> <div id="navbar-iframe-container"></div> <script type="text/javascript" src="https://apis.google.com/js/platform.js"></script> <script type="text/javascript"> gapi.load("gapi.iframes:gapi.iframes.style.bubble", function() { if (gapi.iframes && gapi.iframes.getContext) { gapi.iframes.getContext().openChild({ url: 'https://www.blogger.com/navbar/5031481891940428233?origin\x3dhttp://bandxxxx.blogspot.com', where: document.getElementById("navbar-iframe-container"), id: "navbar-iframe" }); } }); </script>
entries
AHA!
Tuesday, May 11, 2010 @ 9:19 PM

AHA! We use more air! Proof!

The flutist blows a rapid jet of air across the embouchure hole. The pressure inside the player's mouth is above atmospheric (typically 1 kPa: enough to support a 10 cm height difference in a water manometer).

The clarinet player provides a flow of air at a pressure above that of the atmosphere (technically, about 3 kPa or 3% of an atmosphere: applied to a water manometer, this pressure would support about a 30 cm height difference).

- Ying Qin.


EDIT:

The reed (as any clarinettist will tell you) is the key to making a sound. The player does work to provide a flow of air at pressure above atmospheric: this is the source of energy, but it is (more or less) steady. What converts steady power (DC) into acoustic power (AC) is the reed. The first part of the graph (and the dashed line) represents a resistance: flow proportional to pressure difference. Just like its electrical analogue, an acoustic resistor loses power. So in this regime, the clarinet will not play, though there is some breathy noise as air flows turbulently through gap between reed and mouthpiece. The operating regime is the downward sloping part of the curve. This is why there is both a minimum and maximum pressure (for any given reed) that will play a note. Blow too softly and you get air noise (left side of the graph), blow too hard and it closes up (where the graph meets the axis on the right).

profile



Raffles Girls' School Symphonic Band Batch '11

Bandxxxx aka Bandages // Bandeaus

I eat, sleep, play. I make noise, I watch tv, I use the computer.
I hail from planet Earth, while my friends are from Mars and Venus. We live happily ever after in Singapore.
North South East West.

I’M MADE UP OF:

MR ONGO DE CONGO DE BONGO

MR TAKEHIRO OURA! :D

Fluboes
Duoni (Flute) 12th March
102/202/305
Gloria (Oboe) 21st Feb
110/210/304
Keiko (Flute) 31st Aug
101/201/303
 Sussan (Flute) 1st Aug
108/208/314
 Ye Tong (Flute)

Clarinets
Cassandra 16th Dec
102/202/310
 Jessica 11th Dec
106/206/315
 May 4th May
101/201/308
 Wei Lin 9th April
103/203/306
 Ying Qin 24th May
101/201/313
SLWWS
Celine (Tenor Sax) 11th Jan
105/205/304
 Vivian (Alto Sax) 10th Aug
109/209/301
Trumpets
Jamie 16th May
104/204/313
 Wanyi 27th April
105/205/314
Horn(s)
Min Yi 23rd May
107/207/303
Trombones
Hui Jun 25th July
111/211/315
 Zheng Ning 20th April
104/204/313


 Eupho(s)
Hazel 29th June
113/213/310
Basses
Chong Rong (Tuba) 16th March
101/201/313
 Yi Xian (String Bass) 20th Feb
113/213/301
Percussion
Aliza 11th August
104/204/315
 Xing Ern 18th July
108/208/314

 TUTTI <333


Blog is best viewed in Chrome and Safari



Tagboard

Credits
This blogskin is proudly brought to you by ilovexoxos with the basecodes from everlastingroses! with the background from doughtnutcrazy and icon from here.

Links
{♥} RGSSB
{♥} Aliza
{♥} Cassandra
{♥} Celine
{♥} Duoni
{♥} Hazel
{♥} Jamie
{♥} Min Yi
{♥} Sussan
{♥} Wanyi
{♥} Ying Qin
{♥} Zheng Ning
{♥} RIMB Batch'11
{♥} Mr. Oura
{♥} Batch Forum

Pieces


I've played pieces like...

Recruit Band

Ye Banks And Braes O' Bonnie Doon
Mary Had A Little Lamb
Foundation Of Performance
Ode To Joy
Furusato
Chorus Of Frogs
Frere Jacques
Aura Lee
When The Saints Go Marching In
Danzon
First Chorales For Band (James Swearingen)
Recess Rock

Main Band

Dawn of a New Day
Overture For Winds
Selections from 'Cats'
Turandot (Giacomo Puccini)
Overture No. 1 For Wind Bands
Brazil
Jurassic Park
Serenade
Amigos Para Siempre
I Got Rhythm! (George Gershwin)
Imperatrix (Alfred Reed)
PERSEUS: A Hero's Quest in the Heavens (Satoshi Yagisawa)
Theme from Lawrence of Arabia (Maurice Jarre, arr. Alfred Reed)
Dance of the Jesters
Disney Classics Revue
苏州夜曲
Tinkerbell - To The Fairies They Draw Near
Tinkerbell - Fly To Your Heart
Tinkerbell - To The Fairies They Draw Near, Part II
Tinkerbell - End Credit Score Suite
Fly High
Silvercrest (James Swearingen)
Tinkerbell - Romanza
A Sunrise Impression

My current pieces...

The Bells of Sagrada Familia - Satoshi Yagisawa

Duties


(we should change this!) Make lots of noise
Twilight series obsessions
drama serial obsessions
Gossip about our DIRECTS<3