This link just arrived in my inbox, Audio Pixels Limited - Audio Pixels Limited and here is a promotional video on you tube, https://www.youtube.com/watch?v=G47q4vU3Fr8 looks mighty impressive , any thoughts?
Despite what the guy says the physics of the mechanical/air interface still follow the same rules. These are essentially an x by y array (32x32?) of tiny speakers, they may be driven differently than a typical VC driver but they still (at least based on the illustration) are a piston with a suspension.
dave
dave
For those interested on the technical details of their main idea:
Apparatus and methods for generating pressure waves
(there are eleven US patent applications from them)
George
Apparatus and methods for generating pressure waves
(there are eleven US patent applications from them)
George
I think the operative phrase is this:
Lifestyle trends are to walk around with your nose buried in a smart phone or other similar little screen. COnventional speakers are tough to stick into something 7mm thick. Even a laptop is tough to get convincing sound out of.
Just an opinion, but if they could make a larger area of the panels able to emit sound, it might well improve the crappy sound that currently comes out of cell phones.
I don't think they expect to replace my JBL L-100s.
Lifestyle trends are to walk around with your nose buried in a smart phone or other similar little screen. COnventional speakers are tough to stick into something 7mm thick. Even a laptop is tough to get convincing sound out of.
Just an opinion, but if they could make a larger area of the panels able to emit sound, it might well improve the crappy sound that currently comes out of cell phones.
I don't think they expect to replace my JBL L-100s.
those people completely forgot about headphones...I was listening to that youtube video, by my headphones, thinking how great he sounds, big deep voice, when he enounced how pathetic it must sound on todays devices, when they purposely cut the lows out and even added phase distortion, f#ck that, I thought, have you guys ever heard about good headphones?; I guess not...since I am not registered youtuber, I could not leave the comment, but I left thumbs down...we all should
This page shows the stock price near the top:
Audio Pixels Limited - Audio Pixels Limited
They jumped from$3.87 to $5.15
I can see how this could be useful in phones as it can be soldered directly to the pcb, but there is no way a few chips can do bass or even mid at any volume as the effective cone motion is so small
Audio Pixels Limited - Audio Pixels Limited
They jumped from$3.87 to $5.15
I can see how this could be useful in phones as it can be soldered directly to the pcb, but there is no way a few chips can do bass or even mid at any volume as the effective cone motion is so small
Every step they make toward a functional product now, will raise the stock price exponentially.
I read their main patent.
They are on the right track.
In my ex professional life I have experienced the evolutionary steps from a single transducer to arrays of transducers, to phase arrays of transducers. (The later -for non moving transducers- means focusing in space and steering the combined beam for to control directivity and polar response in all planes.)
That was with ultrasonic testing (1MHz-50MHz) and with Eddy Current testing (1kHz-10MHz)
The problems that had to be solved in these technologies made many to be skeptical of the outcome, considering transducers dimensions, inter spacing and beam interactions relative to the very small wavelengths involved.
But all problems were solved and the results closely matched the theoretic predictions.
Phase array technology has most of it’s problems already worked out and tested in critical and demanding sectors of technology (medical, nuclear, aerospace)
It is a mature technology, a powerful and flexible tool. Stepping (down) toward audio was to be expected .
It only has to be integrated in a mass-produced form for to become low priced.
George
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Then there is the prior art.
Bones Hi - Fi: Digital Loudspeakers: Viable Hi-Fi Technology?
The famous digital speaker April fool article, actually published by Stan Curtis back in 1998, which describes the basic technology used by these Australians closely
Bones Hi - Fi: Digital Loudspeakers: Viable Hi-Fi Technology?
The famous digital speaker April fool article, actually published by Stan Curtis back in 1998, which describes the basic technology used by these Australians closely
Nothing stems out from the cold.
If you are talking about acoustic MEMS, there is prior knowledge and art but it’s not where you site.
It’s with the MEMS companies dealing with hearing aids and microphones.
There are many (*), some have the knowledge, some have the markets and the money (0.5 -1 billion MEMS microphones for mobile devices per year), thus, a lot of take-overs and acquisitions happens there.
George
(*) A few that I traced:
Analog Devices, Akustika, Bosch Sensortec, Freescale, Infineon, Knowles Acoustics, Omron, STMicroelectronics, Sonion, Wolfson Microelectronics,
China: AAC Acoustic Technologies (Shenzhen) Co. Ltd. Shangdong Goer Acoustics Technology Co. Ltd, Suzhou MEMSensing Microsystems Co. Ltd.
If you are talking about acoustic MEMS, there is prior knowledge and art but it’s not where you site.
It’s with the MEMS companies dealing with hearing aids and microphones.
There are many (*), some have the knowledge, some have the markets and the money (0.5 -1 billion MEMS microphones for mobile devices per year), thus, a lot of take-overs and acquisitions happens there.
George
(*) A few that I traced:
Analog Devices, Akustika, Bosch Sensortec, Freescale, Infineon, Knowles Acoustics, Omron, STMicroelectronics, Sonion, Wolfson Microelectronics,
China: AAC Acoustic Technologies (Shenzhen) Co. Ltd. Shangdong Goer Acoustics Technology Co. Ltd, Suzhou MEMSensing Microsystems Co. Ltd.
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