http://rev33.com/revdocs/AES_Rauschmayer_paper.pdf
How to seemingly get cred. Shame the AES allows thes ebriefs, but guess it helps pay the bills.
How to seemingly get cred. Shame the AES allows thes ebriefs, but guess it helps pay the bills.
The use of the word " wanna " in the sales pitch was sophisticated enough to leave no doubt regarding their professional credentials in my mind. 🙂
I love how the abstract says "An impedance matched resonant circuit uses inductors coupling an audio source and a speaker array in order to reduce feedback reflection induced by an audio signal traveling from the audio source to the array of speakers."
But the actual CLAIM in the patent says "1. A circuit configured to reduce quantization noise in an audio signal reconstructed from digitally encoded audio..."
This guy Rauschmayer supposedly has a PhD in electrical engineering from Temple University and had been with Texas Instruments for 14 years before getting involved with REV33, but the patent reads like it was written by some layperson stitching together results from Google searches. No idea who this Wayne J. Powell is.
se
But the actual CLAIM in the patent says "1. A circuit configured to reduce quantization noise in an audio signal reconstructed from digitally encoded audio..."
This guy Rauschmayer supposedly has a PhD in electrical engineering from Temple University and had been with Texas Instruments for 14 years before getting involved with REV33, but the patent reads like it was written by some layperson stitching together results from Google searches. No idea who this Wayne J. Powell is.
se
Yeah, note how they disingenuously use the term "paper" in the URL. Christ, this thing isn't even a preprint let alone a paper.
se
Just shows how worthless 99% of patents are...
I love the "REV33 is configured to the specific brand and model of your in-ear monitors or headphones." - then a huge drop down list... Bet they are all the same.... 😀
I love the "REV33 is configured to the specific brand and model of your in-ear monitors or headphones." - then a huge drop down list... Bet they are all the same.... 😀
It is not an "impedance matched resonant circuit" but a crude low pass filter; resonance needs to be avoided in order to avoid causing the very thing this simple circuit claims to prevent. "Feedback reflection" is meaningless. "Induced" is perhaps just a pseudo-posh way of saying "caused"; in EE 'induced' has a particular meaning which presumably is not intended here. "Slope differential" is either tautology or a peculiar name for the second differential.
It appears to be a way of coping with cheap filterless Class D chips, by adding an external filter. Much better for FCC/Ofcom etc. to ban filterless Class D on EMC grounds.
It appears to be a way of coping with cheap filterless Class D chips, by adding an external filter. Much better for FCC/Ofcom etc. to ban filterless Class D on EMC grounds.
Filter the highs and add a zobel....perfect for IEM's, the intended market.
Anything that reduces IEM fatigue is good....try wearing a talkback headset for a loud three hour show with lot's of cues.
Dan.
Anything that reduces IEM fatigue is good....try wearing a talkback headset for a loud three hour show with lot's of cues.
Dan.
Why does a simple filter have to be sold with such hype? Is it merely a justification for the price, or an acknowledgement that the target market (musicians and their techs) don't understand technology and so need to be told a good story.
“I can feel the difference right away with the REV33. After I come off stage, I feel completely better and I don’t have that after show ringing in my ear that I’ve always got had.”
Got had?
Got had?
The world is full of products that give hazy/hype explanations, so what/BFD.
The point of this product is that it makes a very useful difference, and is in a suitable form factor for the application.
Dan.
Not everywhere in the world. In some countries patent simply means existing knowledge which a powerful person wishes to appropriate for his own exclusive use, or complete nonsense which someone sincerely believes and the patent officer can't be bothered to check.Max Headroom said:
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