[CAUT] Piano truck acoustics

[David Ilvedson]

I don't know if anyone actually built one, but we definitely talked about it...and the lower lid.   I think someone was trying to patent the lower lid...?  I think the rolling wedge was a good idea

David Ilvedson, RPT
Pacifica, CA  94044

----- Original message ----------------------------------------
From: "Andrew Anderson" <andrew at andersonmusic.com>
To: caut at ptg.org
Received: 3/20/2009 3:14:45 PM
Subject: Re: [CAUT] Piano truck acoustics


>Ric,
>Besides grounding the stage truck so that the big "springing" arms  
>don't absorb a significant per-centage of the pianist's and piano's  
>energy there is the "Under-Lid" to consider.  Seems that I heard about  
>that on this list.  Someone built a rolling box with one side low, and  
>the other side up to the bottom of the piano.  The box was rolled  
>under the piano from the lid hinge side and reflects the pianos energy  
>out to the audience as well.

>Perhaps someone here is the one who mentioned this and can send us  
>some pictures...?

>Andrew Anderson

>On Mar 20, 2009, at 3:48 PM, Richard Brekne wrote:

>> I've had this idea for years now of trying to build a special  
>> acoustic platform for stage grands with acoustics designed to accent  
>> and project lower frequencies ranges of the piano.... dvs 1500 hz  
>> downwards.  There is no doubt lost acoustic energy that one way or  
>> the other either spins out into oblivion or gets randomly  
>> distributed by whatever connection to whatever floor material there  
>> is.  Since the energy is obviously there to begin with... and since  
>> we are always looking for ways of making that nine footer project  
>> bigger in that 3000-5000 seat hall.... why not try and make use of  
>> it intelligently ?
>>
>> One of those things that is no doubt beyond my ken to begin with,  
>> and I will never have time to fool with anyways... but keeps hitting  
>> my curiosity lobe.
>>
>> Cheers
>> RicB
>>
>>
>>   I'm wondering if anyone has any thoughts on the acoustic qualities  
>> of
>>   a piano truck versus having rubber or metal casters.  We have a
>>   Steinway D (on a truck) in our recital hall that sounds big when
>>   you're sitting at it, but doesn't sound as big when you're 30 feet
>>   back, in the audience.  But the Yamaha with big honking metal  
>> casters
>>   doesn't sound as big up close, but sounds bigger from the audience.
>>   Thoughts?
>>
>>   Or am I barking up the wrong tree?
>>
>>   Thanks,
>>   Zeno Wood
>>   Brooklyn College
>>
>>
>>