What is the Silliest Accessory You Have Ever Seen.

When you have better than a cursory wikipedia understanding of sound waves and acoustics, then this conversation will make sense. You have latched onto only one property and are ignoring absolutely everything else.  When you figure out longitudinal velocity, mean integrated velocity, extensional velocity,  and oh, acoustic impedance, let's pick this up again and add another 4 or 5 terms to add to the repertoire.

theaudiotweak2,118 posts01-11-2021 3:28pmLets keep it simple, has any one placed 2 or more plants in the corners of their audio room and encountered a change in sound? The pots could be clay or ceramic or brass or metal or plastic.
That describes 5 different materials with 5 different shear velocities and whose varied shapes are surrounded by the air that touches these vessels.

theaudiotweak,

Thanks for the explanation of "activated" and the rest. I will have to try to grasp it with a few more readings as, at first quick read, it does not completely explain what goes where. I will do my best as time goes by.

As far as patents go, they are not as complicated to obtain and, taking into consideration the rest of the marketing description of Hallographs, I have a feeling it is more of a marketing trick than actual "patent pending" with any intention to obtain it. Of course, I may be wrong, but claiming that patent is pending for 17 years is bordering on laughable.

2021 How Much Does A Patent Cost? | Cost To File & Patent An Idea (thervo.com)

You wonder how this goes...

This information is found in 35 U.S. Code 292(a) about false marking. The document states:

"Whoever marks upon, or affixes to, or uses in advertising in connection with any article, the words 'patent applied for,' 'patent pending,' or any word importing that an application for patent has been made, when no application for patent has been made, or if made, is not pending, for the purpose of deceiving the public — Shall be fined not more than $500 for every such offense. Only the United States may sue for the penalty authorized by this subsection."

When Can You Say Patent Pending? Everything You Need to Know (upcounsel.com)

glupson..

Yea it is a hard read and a hard write..takes me sometime to write the correct visual for all of this. What I knew before was based on my own designs, experiments and observations. When Debbie found me after her patent and she had referenced mine she called me out of the blue. After hearing my design in person she thought somehow I corrupted her patent. She flew across country to meet me. TotalIy different application but the end results are nearly the same. I showed her highend audio and she shared her 35 years of being a professional geophysicist and why that field of science is so important in the production of music both  live and recorded. Chance encounter. Tom

@daveyf 
@grannyring 
@theaudiotweak 

Only sounds of reason in here. For everyone, please, no matter what you think, at least give them a listen in YOUR system and then you will know if they do anything for you.

When I first saw these devices, I thought they'd be used in the first reflection as they would appear to breakup the first reflection if positioned in that area of each sidewall. GIK and others do this with room treatment.

I do not own these, and never plan to. But experience with them is the only way to know if they really work in your room or not.

glupson

Shakti did obtain a patent on the stone but I can locate nothing for the Hallograph. Patents are not cheap..if you hire an agent or a patent attorney. The fees are cheap for a small entity. Tom