Now my understanding about a flute and its internal working is enhanced. Thanks for putting your effort to make us understand the science behind flute sound
महोदय बांसुरी में विभिन्न आवृत्तियों (पिच-ध्वनि और विशेष रूप से संगीत स्वर का गुण) के आपके विस्तृत विवरण के लिए बहुत-बहुत धन्यवाद। इसकी व्याख्या शायद ही (शायद नहीं) की जाती है। मैंने प्रश्न पूछा कि बांसुरी में आवृत्तियाँ क्या होती हैं या आवृत्तियाँ क्या दर्शाती हैं। लेकिन जवाब नहीं मिला. पुनः, मेरे प्रश्न का उत्तर देने के लिए धन्यवाद। नंदा वी एन
विषय की सराहना के लिए धन्यवाद। बांसुरी में वायु स्तंभ कंपन करता है। मतलब, वायु स्तंभ में हवा संपीड़न और विरलीकरण चक्रों से गुजरती है। ऐसा समय के साथ दबाव में परिवर्तन के कारण होता है जब हम बांसुरी में हवा भरते हैं। ऐसे दबाव परिवर्तन चक्रों की एक प्राकृतिक आवृत्ति होती है। यही इन स्वर आवृत्तियों का प्रतिनिधित्व करती है। कंपन की वह आवृत्ति स्वर को निर्धारित करती है। वायु स्तंभ की लंबाई कंपन की आवृत्ति निर्धारित करती है। उंगली की स्थिति वायु स्तंभ की लंबाई निर्धारित करती है। इस तरह हमारी उंगली की स्थिति यह निर्धारित करती है कि हम कौन सा स्वर बजाते हैं। यदि आप रुचि रखते हैं, तो मैंने इस विषय पर एक वीडियो बनाया है। बांसुरी की आवाज़ के पीछे की ‘धार’ ruclips.net/video/l-JDUH7Ivwk/видео.html
Kindly cover the scientific reason for the hissing sound from flute in upcoming videos. No one actually could accurately address the scientific theory behind the hissing sound. The guess is that if the angle of blowing is not correct and air entering in the hole is obstructed by the returned air then hissing sound is produced. Not sure about the actual reason.
The explanation here pertains to flutes designed to play equal-temperament notes. This is fine for Western music, Indian flim music, and generally orchestral music. However, if you want to play Indian classical music, one should use just intonation - this is a different way of creating notes of the octave that generates slightly different frequencies among the notes. Several years ago, I explained about this in a video showing how to adjust a tuner for purposes of Indian music.
One thing I didn't understand, please explain if possible. What factors contribute to the scale of any flute. Slightly different diameter, length and holes-placement can lead to the same scale. How does the tuner-app detects the correct scale?
Like you already mentioned, the factors contributing to the pitch and scale of the flute are inner diameter of the tube, wall thickness, shape of the bore, length from the blow hole to the end of the flute, diameter of individual holes, how much the player covers the blow hole with lips. If we break it down further, thickness and bore diameter are fixed once we choose the tube. In bamboo, they can still vary along the length due to the natural formation. But, usually a uniform tube is chosen. The most controlled parameter is hole diameter and hole placement along the length of the tube. Both of these determine the air column length and hence the pitch of that note. These two compensate for each other within certain boundaries. For example, you can compensate for the placement error by making the hole larger. Similarly bore diameter, thickness and length have an interplay. That’s why various combinations still lead to the same scale.
We need to assume the stream is constant. Air has two escape paths. One through the note hole and another at the edge itself. Air stream is alternating between these two escape routes. Flow of air over the edge must be causing the drop of pressure. The same reason as to why air flowing over a sheet of paper causes it to flutter. Need a physicist to confirm.
There are two different aspects in play. 1. Air column vibrates at some frequency. It produces sound. 2. Length of the air column determines the frequency of vibration and hence the note. #2 is intuitive to understand. As we open/close the note holes, the point at which air escapes from the flute changes. That changes the length of the air column and hence frequency change. #1 is not intuitive. Why air column vibrates at all when one end is open? I guess your question is related to this. See my video about the function of the edge of the blow hole. ruclips.net/video/l-JDUH7Ivwk/видео.htmlfeature=shared Scientifically, here is an explanation “The jet of air from the player's lips travels across the embouchure-hole opening and strikes against the sharp further edge of the hole. If an air jet is disturbed, then a wave-like displacement travels along it and deflects it. (A rising plume of smoke in still air can illustrate this motion.) For a flutist's jet, such a displacement can cause it to flow alternately into or out of the embouchure hole. The speed of this displacement wave on the jet is about half the air-speed of the jet itself (which is typically in the range 20 to 60 metres per second, depending on the air pressure in the player's mouth). In operation, the jet can be displaced by the sound vibration in the flute tube, which causes air to flow into and out of the embouchure hole. If the jet speed is appropriate for the frequency of the note being played, then the jet will flow into and out of the embouchure hole at its further edge in just the right phase to reinforce the sound and cause the flute to produce a sustained note.” Reference: newt.phys.unsw.edu.au/jw/fluteacoustics.html#airjet
If your question is about #2 aspect listed in my comment, then the point is that once the air column is vibrating, it is not the pressure but the length of the air column is changing as we open and close note holes. Even though the flute is open ended, air escapes from the earliest available open hole. That’s why the air column length changes with our fingering.
I presume when you test, you find G to be 396Hz. When they say ‘tuned to 440Hz’, they mean A is set to 440 Hz. That is the standard. When A is set to 440 Hz, G should be 392 Hz. Your measurement says 396, and the difference is negligible. The difference could be a testing error. Even if it is the making error, it is really minor and negligible.
@@VindyDays Sir, don't collaborate with him. I was the one who did the research now he is trying to get credit for my original worrk. Do not collaborate with him.
I am so impressed with your explanation on flute physics. I salute you for your time and sharing the very useful information 🙏
Thanks for your appreciation. It means a lot to me.
Now my understanding about a flute and its internal working is enhanced. Thanks for putting your effort to make us understand the science behind flute sound
Thanks for your appreciation.
Perfect video that I was searching regarding sound and music.
Glad you like it.
I would like and love to convey my gratitude for enriching us with the science behind music with reference to the Flute. Namaskar.🙏
Thank you so much. I am humbled by your appreciation.
Remarkable explanation and dedicated work. Thank you so much. Let me learn more and come back to you. ,🙏🙏🙏
Sir, it’s great information. Music is explained scientifically. Thank you very much.🙏🙏🙏
Thank you very much
... too good explanation. !!
Glad you like it. Thank you.
महोदय
बांसुरी में विभिन्न आवृत्तियों (पिच-ध्वनि और विशेष रूप से संगीत स्वर का गुण) के आपके विस्तृत विवरण के लिए बहुत-बहुत धन्यवाद। इसकी व्याख्या शायद ही (शायद नहीं) की जाती है। मैंने प्रश्न पूछा कि बांसुरी में आवृत्तियाँ क्या होती हैं या आवृत्तियाँ क्या दर्शाती हैं। लेकिन जवाब नहीं मिला. पुनः, मेरे प्रश्न का उत्तर देने के लिए धन्यवाद।
नंदा वी एन
विषय की सराहना के लिए धन्यवाद।
बांसुरी में वायु स्तंभ कंपन करता है। मतलब, वायु स्तंभ में हवा संपीड़न और विरलीकरण चक्रों से गुजरती है। ऐसा समय के साथ दबाव में परिवर्तन के कारण होता है जब हम बांसुरी में हवा भरते हैं। ऐसे दबाव परिवर्तन चक्रों की एक प्राकृतिक आवृत्ति होती है। यही इन स्वर आवृत्तियों का प्रतिनिधित्व करती है। कंपन की वह आवृत्ति स्वर को निर्धारित करती है। वायु स्तंभ की लंबाई कंपन की आवृत्ति निर्धारित करती है। उंगली की स्थिति वायु स्तंभ की लंबाई निर्धारित करती है। इस तरह हमारी उंगली की स्थिति यह निर्धारित करती है कि हम कौन सा स्वर बजाते हैं। यदि आप रुचि रखते हैं, तो मैंने इस विषय पर एक वीडियो बनाया है।
बांसुरी की आवाज़ के पीछे की ‘धार’ ruclips.net/video/l-JDUH7Ivwk/видео.html
itni shuddh hindi k liye aapka dono ka dhanyawad nahi.
samajhne wali bhasha use karo please. 🙏
Awesome explanation ❤🙏
Thank you.
I am very thankful as well as obliged to you for making such an informative video. 🙏
Glad you find it useful.
Kindly cover the scientific reason for the hissing sound from flute in upcoming videos. No one actually could accurately address the scientific theory behind the hissing sound. The guess is that if the angle of blowing is not correct and air entering in the hole is obstructed by the returned air then hissing sound is produced. Not sure about the actual reason.
The explanation here pertains to flutes designed to play equal-temperament notes. This is fine for Western music, Indian flim music, and generally orchestral music. However, if you want to play Indian classical music, one should use just intonation - this is a different way of creating notes of the octave that generates slightly different frequencies among the notes. Several years ago, I explained about this in a video showing how to adjust a tuner for purposes of Indian music.
I do not know if Bansuri makers are following TET or Just Intonation. Please leave a link to your video, so people can benefit from it.
@@VindyDays Just click on the channel icon and go to the video on using tuner apps for Indian music. Would appreciate your comments.
@@VindyDays I follow.
Yes sir, I follow you and I make accordingly Flutist requirment
I got it now ..Thank you very much 👌👍🙏
Most welcome 😊
Sir Namaste. I am Vennela Flutes maker From ANDHRA Pradesh. If you possible I can talk with you about flute structure.
That would be wonderful. Please email me at vinay.dhavala@gmail.com, so I can set time with you for further conversation.
One thing I didn't understand, please explain if possible.
What factors contribute to the scale of any flute.
Slightly different diameter, length and holes-placement can lead to the same scale.
How does the tuner-app detects the correct scale?
Like you already mentioned, the factors contributing to the pitch and scale of the flute are inner diameter of the tube, wall thickness, shape of the bore, length from the blow hole to the end of the flute, diameter of individual holes, how much the player covers the blow hole with lips. If we break it down further, thickness and bore diameter are fixed once we choose the tube. In bamboo, they can still vary along the length due to the natural formation. But, usually a uniform tube is chosen. The most controlled parameter is hole diameter and hole placement along the length of the tube. Both of these determine the air column length and hence the pitch of that note. These two compensate for each other within certain boundaries. For example, you can compensate for the placement error by making the hole larger. Similarly bore diameter, thickness and length have an interplay. That’s why various combinations still lead to the same scale.
@@VindyDays Thanks a lot for explaining 🙏
Now I have made a video on this topic
Make a Bansuri - Understand the factors influencing the pitch/scale.
ruclips.net/video/b5Cp2SluQU8/видео.html
nice explanation :) thanks. Why does the pression changes in time (if , let's say, the stream is constant) ?
We need to assume the stream is constant. Air has two escape paths. One through the note hole and another at the edge itself. Air stream is alternating between these two escape routes. Flow of air over the edge must be causing the drop of pressure. The same reason as to why air flowing over a sheet of paper causes it to flutter. Need a physicist to confirm.
@@VindyDays Thank you :) I am learning shinobue , japanese flute, and it seems bansuri is the India version .
That’s great. Please try Bansuri as well. It’s a wonderful instrument.
Why did the pressure go up or down since the other end of the flute is open to the atmosphere?
There are two different aspects in play.
1. Air column vibrates at some frequency. It produces sound.
2. Length of the air column determines the frequency of vibration and hence the note.
#2 is intuitive to understand. As we open/close the note holes, the point at which air escapes from the flute changes. That changes the length of the air column and hence frequency change.
#1 is not intuitive. Why air column vibrates at all when one end is open? I guess your question is related to this.
See my video about the function of the edge of the blow hole.
ruclips.net/video/l-JDUH7Ivwk/видео.htmlfeature=shared
Scientifically, here is an explanation
“The jet of air from the player's lips travels across the embouchure-hole opening and strikes against the sharp further edge of the hole. If an air jet is disturbed, then a wave-like displacement travels along it and deflects it. (A rising plume of smoke in still air can illustrate this motion.) For a flutist's jet, such a displacement can cause it to flow alternately into or out of the embouchure hole. The speed of this displacement wave on the jet is about half the air-speed of the jet itself (which is typically in the range 20 to 60 metres per second, depending on the air pressure in the player's mouth). In operation, the jet can be displaced by the sound vibration in the flute tube, which causes air to flow into and out of the embouchure hole. If the jet speed is appropriate for the frequency of the note being played, then the jet will flow into and out of the embouchure hole at its further edge in just the right phase to reinforce the sound and cause the flute to produce a sustained note.”
Reference: newt.phys.unsw.edu.au/jw/fluteacoustics.html#airjet
If your question is about #2 aspect listed in my comment, then the point is that once the air column is vibrating, it is not the pressure but the length of the air column is changing as we open and close note holes. Even though the flute is open ended, air escapes from the earliest available open hole. That’s why the air column length changes with our fingering.
✨Thank you, Sir, 🙏✨
✨Good Evening 🦚, Sir 🙏🏼✨
Sir why does Flute makers say G base is tuned at 440hz but when tested it comes down to 396hz
I presume when you test, you find G to be 396Hz.
When they say ‘tuned to 440Hz’, they mean A is set to 440 Hz. That is the standard. When A is set to 440 Hz, G should be 392 Hz. Your measurement says 396, and the difference is negligible. The difference could be a testing error. Even if it is the making error, it is really minor and negligible.
@@VindyDays thank you sir
Sir, i did similar research sir in comparison with keyboard, why don't we collaborate
Good to know about your research. Please consider act me by email and we can hopefully make something useful to others. Vinay.Dhavala@gmail.com
@@VindyDays Sir, don't collaborate with him. I was the one who did the research now he is trying to get credit for my original worrk. Do not collaborate with him.
Please give me a flute
Please tell us more about your ambition and why anyone should gift you a flute.
Dhikar hai jo hindi nahi bol sakte
May you have the wisdom to recognize the futility of hatred and chauvinism.