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#2103465 - 06/16/13 06:12 PM Piano Keyboard Split
Omer Eilam Offline
Full Member

Registered: 06/16/13
Posts: 21
Hi all,

I want to be able to split my upright piano keyboard into mid-lows and mid-highs, then add some effects only on the latter.
I tried to achieve this by setting a Hi-Pass filter but many of the low notes still leak into the mid-high range.
So, I thought that the best thing would be to use a barrier set in between the two mics that will prevent sound from the high notes leaking into the low mic and vice versa.
I read quite a bit about the Jecklin disk. Although it's meant for a totally different purpose I figured that perhaps if I put the disk close to the piano strings I would be able to achieve a nice separation between L and R.

I'd appreciate any kind of feedback and further suggestions on how I might be able to do this.

Thanks!
omer

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#2103479 - 06/16/13 06:51 PM Re: Piano Keyboard Split [Re: Omer Eilam]
Rickster Offline


Registered: 03/25/06
Posts: 8583
Loc: Georgia, USA
Hi Omer, and welcome to Piano World.

You will likely get more response to your thread on the "Digital Piano Forum" here on PW. PW consists of several different forums.

Here is the link to the digital forum. http://www.pianoworld.com/forum/ubbthrea...20&%20.html

If you'd like, I'll move the thread to the digital forum for you.

Best regards,

Rick
_________________________
Piano enthusiast and amateur musician: "Treat others the way you would like to be treated". Yamaha C7. YouTube Channel

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#2103556 - 06/16/13 09:35 PM Re: Piano Keyboard Split [Re: Omer Eilam]
Del Offline
5000 Post Club Member

Registered: 09/04/03
Posts: 5317
Loc: Olympia, Washington
Originally Posted By: Omer Eilam
I want to be able to split my upright piano keyboard into mid-lows and mid-highs, then add some effects only on the latter.
I tried to achieve this by setting a Hi-Pass filter but many of the low notes still leak into the mid-high range.
So, I thought that the best thing would be to use a barrier seta in between the two mics that will prevent sound from the high notes leaking into the low mic and vice versa.
I read quite a bit about the Jecklin disk. Although it's meant for a totally different purpose I figured that perhaps if I put the disk close to the piano strings I would be able to achieve a nice separation between L and R.

I'd appreciate any kind of feedback and further suggestions on how I might be able to do this.

You might be able to do this with more sophisticated filtering but probably not with microphones alone.

One problem is that, when struck, piano strings vibrate across a fairly wide frequency spectrum. A struck bass string can produce significant sound energy well up into the mid-range and treble bands. The sounds produced by the piano soundboard are not generated at a single point on the soundboard but over a relatively broad area of the panel. Microphones are going to pick up whatever is there in a frequency indiscriminate manner; if it is there it's going to be picked up regardless of the fundamental pitch of the specific note(s) being played.

As suggested, you may get further on the digital forum.

ddf
_________________________
Delwin D Fandrich
Piano Research, Design & Manufacturing Consultant
ddfandrich@gmail.com
(To contact me privately please use this e-mail address.)

Stupidity is a rare condition, ignorance is a common choice. --Anon

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#2103642 - 06/17/13 02:05 AM Re: Piano Keyboard Split [Re: Rickster]
Omer Eilam Offline
Full Member

Registered: 06/16/13
Posts: 21
Originally Posted By: Rickster
Hi Omer, and welcome to Piano World.

You will likely get more response to your thread on the "Digital Piano Forum" here on PW. PW consists of several different forums.

Here is the link to the digital forum. http://www.pianoworld.com/forum/ubbthrea...20&%20.html

If you'd like, I'll move the thread to the digital forum for you.

Best regards,

Rick


Thanks for the warm welcome Rick.
And sure, go ahead and move the thread (I just hope I can find it later ;-) ...)

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#2103643 - 06/17/13 02:07 AM Re: Piano Keyboard Split [Re: Del]
Omer Eilam Offline
Full Member

Registered: 06/16/13
Posts: 21
Originally Posted By: Del
Originally Posted By: Omer Eilam
I want to be able to split my upright piano keyboard into mid-lows and mid-highs, then add some effects only on the latter.
I tried to achieve this by setting a Hi-Pass filter but many of the low notes still leak into the mid-high range.
So, I thought that the best thing would be to use a barrier seta in between the two mics that will prevent sound from the high notes leaking into the low mic and vice versa.
I read quite a bit about the Jecklin disk. Although it's meant for a totally different purpose I figured that perhaps if I put the disk close to the piano strings I would be able to achieve a nice separation between L and R.

I'd appreciate any kind of feedback and further suggestions on how I might be able to do this.

You might be able to do this with more sophisticated filtering but probably not with microphones alone.

One problem is that, when struck, piano strings vibrate across a fairly wide frequency spectrum. A struck bass string can produce significant sound energy well up into the mid-range and treble bands. The sounds produced by the piano soundboard are not generated at a single point on the soundboard but over a relatively broad area of the panel. Microphones are going to pick up whatever is there in a frequency indiscriminate manner; if it is there it's going to be picked up regardless of the fundamental pitch of the specific note(s) being played.

As suggested, you may get further on the digital forum.

ddf


I totally understand what you mean. Any idea on what might consist these sophisticated filters? For now I only tried a Hi Pass filter.

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