I don't even know what to call this-

Conrad Hoffman · 19th June 2007, 02:37 AM

Ok, put on the headphones and play a 1kHz tone at a medium level. Now, tap your head with your finger. Try to get some bone conduction. What do you hear? Does this have any impact on audio reproduction (no pun intended) as low bass notes combine with the highs?

Cal Weldon · 19th June 2007, 03:05 AM

I am curious.

Christer · 19th June 2007, 09:55 AM

I hear a sine and a tapping on my head. What am I supposed to hear?

Maybe your skull has mor IM than mine?

QSerraTico_Tico · 19th June 2007, 10:11 AM

Try 130dB+ at rock concert!

Conrad Hoffman · 19th June 2007, 11:42 AM

Christer- maybe that's correct! I hear the sine significantly modulated by the tapping. Maybe I need to apply damping material

Christer · 19th June 2007, 11:52 AM

Conrad,

One problem is that you are tapping your own head. There is mechanical movement of the body involved. I can agree that gives some type of modulation. It would be better to have somebody else tap the head.

There are also actuators for bone conduction that are used in audiology and sound therapy. That would allow you to play with these things, if using uncorrelated signals for air conduction and bone conduction, which is usually not supposed to happen in nature.

jacco vermeulen · 19th June 2007, 12:09 PM

Gives a whole new meaning to the term head banger.
On the other hand, head tossing hardrockers invented digital reverb.

QonTico,
looks like beach weather overhere, i like to tap my head when i'm looking at lush bikini girls, minus the bikini.

Christer · 19th June 2007, 12:39 PM

It could be interesting, perhaps, to try tapping the head of a musician while he/she is playing, to see if it affects the playing.

I_Forgot · 19th June 2007, 03:56 PM

This problem is cured by wearing a hat made of aluminum foil...

I_F

Hartono · 19th June 2007, 04:18 PM

the monkey doesn't seem to agree with the master

19th June 2007, 02:37 AM	#1
Conrad Hoffman diyAudio Member Join Date: Mar 2007 Location: Canandaigua, NY USA	I don't even know what to call this- Ok, put on the headphones and play a 1kHz tone at a medium level. Now, tap your head with your finger. Try to get some bone conduction. What do you hear? Does this have any impact on audio reproduction (no pun intended) as low bass notes combine with the highs?

19th June 2007, 03:05 AM	#2
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	I am curious. __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

19th June 2007, 12:09 PM	#7
jacco vermeulen diyAudio Member Join Date: Oct 2004 Location: At the sea front, just under Rotterdam	Gives a whole new meaning to the term head banger. On the other hand, head tossing hardrockers invented digital reverb. QonTico, looks like beach weather overhere, i like to tap my head when i'm looking at lush bikini girls, minus the bikini. __________________ Looks like Sponge Bob has killed another thread.

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19th June 2007, 09:55 AM	#3
Christer diyAudio Member Join Date: Sep 2002 Location: Sweden	I hear a sine and a tapping on my head. What am I supposed to hear? Maybe your skull has mor IM than mine?

19th June 2007, 10:11 AM	#4
QSerraTico_Tico diyAudio Member Join Date: Oct 2004	Try 130dB+ at rock concert!

19th June 2007, 11:42 AM	#5
Conrad Hoffman diyAudio Member Join Date: Mar 2007 Location: Canandaigua, NY USA	Christer- maybe that's correct! I hear the sine significantly modulated by the tapping. Maybe I need to apply damping material

19th June 2007, 11:52 AM	#6
Christer diyAudio Member Join Date: Sep 2002 Location: Sweden	Conrad, One problem is that you are tapping your own head. There is mechanical movement of the body involved. I can agree that gives some type of modulation. It would be better to have somebody else tap the head. There are also actuators for bone conduction that are used in audiology and sound therapy. That would allow you to play with these things, if using uncorrelated signals for air conduction and bone conduction, which is usually not supposed to happen in nature.

19th June 2007, 12:39 PM	#8
Christer diyAudio Member Join Date: Sep 2002 Location: Sweden	It could be interesting, perhaps, to try tapping the head of a musician while he/she is playing, to see if it affects the playing.

19th June 2007, 03:56 PM	#9
I_Forgot diyAudio Member Join Date: Jan 2005 Location: Phoenix, Az.	This problem is cured by wearing a hat made of aluminum foil... I_F

19th June 2007, 04:18 PM	#10
Hartono diyAudio Member Join Date: Nov 2002 Location: currently in China	the monkey doesn't seem to agree with the master

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