HELP SAVE HOME AUDIO - This application from Creative Labs seeks to patent the general idea of a self-calibrating audio systems! Help narrow US patent applications before they become patents.... HERE!
QUESTION - Have you seen anything that was published before Dec, 2010 that discusses:
- Determining physical features around speakers and calibrating at least one of the speakers; where
- Physical features are determined by sending a test signal from the speaker and calibrating the speakers based on the test signal
If so, please submit evidence of prior art as an answer to this question. Only one piece of prior art per answer below. We welcome multiple answers from the same individual
HINT - Haven’t self-calibrating speaker systems or networks been around for a while? Did Dynaudio AIR do this? Can you help find evidence that Dynaudio AIR or any other system did this prior to Dec 2010?
TITLE: SELF-CALIBRATING SPEAKER SYSTEMS
Summary: [Translated from Legalish into English] A method for calibrating multi-speaker audio system wherein an audio test signal is sent from a speaker and the test signal is used to measure a physical features of the speaker. This physical feature (for example, volume) is used to calibrate the speaker.
- Publication Number: US 20130051572 A1
- Assignee: Creative Labs, Inc.
- Prior Art Date: Seeking prior Art predating December, 2010
Claim 1 requires each and every step below:
A calibration method for calibrating a variable number of speakers, the method comprising: 1. Determining physical features around a location of each of the variable number of speakers and calibrating at least one of the variable number of speakers;
Wherein the physical features around a location of each of the variable number of speakers are determinable by:
Transmitting an instruction signal, the instruction signal being transmittable from a device which is indicative of listener location;
Communicating a test signal based on the instruction signal, the test signal being communicable from at least one of the variable number of speakers to the device; and
- Receiving and processing the test signal by the device in a manner so as to produce calibration signals, and
- Wherein the calibration signals are communicable from the device to at least one of the variable number of speakers so as to calibrate at least one of the variable number of speakers.
In English this means:
A method for calibrating audio speakers; 1. Determining physical features of the audio speakers using an audio test signal from at least one of the speakers; 2. Using the physical features which have been determined to calibrate at least one of the speakers.
Good prior art would be evidence of a system that did each and every one of these steps prior to the Dec, 2010.
You're probably aware of ten pieces of art that meet this criteria already - haven’t self-calibrating speaker systems or networks been around for a while? Did Dynaudio AIR do this? Can you help find evidence that Dynaudio AIR or any other system did this prior to Dec 2010?
The method of self-calibrating speaker systems from the Applicant
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Want to help? Please vote or comment on submissions below. We welcome you to post your own request for prior art on other questionable US Patent Applications.