Abstract: An audio system is provided with at least two low frequency transducers to project sound within a room and a portable device with at least two microphones to receive sound at the first listening location from multiple directions. A microcontroller is programmed to provide a calibration command in response to a user input, and to provide a measurement signal indicative of the sound received by the microphone array. A processor is programmed to provide a test signal in response to receiving the calibration command, wherein each low frequency transducer is adapted to generate a test sound in response to the test signal. The processor is further programmed to: process the measurement signal to predict a sound response at a second listening location adjacent to the first listening location, and adjust a sound setting associated with each low frequency transducer to optimize sound at the first and second listening locations.

Abstract: A first image may be received by a processor. The processor may identify an image quality measure of which to evaluate the first image. The processor may compare the first image to one or more images. The processor may generate a first image quality score for the first image based on the comparing. The processor may convert the first image quality score into a first micro air-quality index. The processor may transmit the first micro air-quality index to a recording device. Additionally, a recording device may capture a first image. The recording device may send the first image to a database that may include a model associated with an image quality measure. The recording device may receive a first micro air-quality index associated with the image quality measure. The recording device may rearrange a display of the first image to display the first micro air-quality index.

Abstract: A first image may be received by a processor. The processor may identify an image quality measure of which to evaluate the first image. The processor may compare the first image to one or more images. The processor may generate a first image quality score for the first image based on the comparing. The processor may convert the first image quality score into a first micro air-quality index. The processor may transmit the first micro air-quality index to a recording device. Additionally, a recording device may capture a first image. The recording device may send the first image to a database that may include a model associated with an image quality measure. The recording device may receive a first micro air-quality index associated with the image quality measure. The recording device may rearrange a display of the first image to display the first micro air-quality index.

Abstract: Cardioid adaptive filtering includes receiving a first and second audio signals from first and second omnidirectional microphones; combining the audio input signals into a cardioid signal; filtering the cardioid signal to create a first filtered output using an adaptive low pass filter controlled by a frequency control, the adaptive low pass filter having a controllable corner frequency f1; filtering the first filtered output, using a high frequency gain filter with a corner frequency f2, to create an equalized cardioid output signal; performing feedforward processing of the audio input signals to provide a wind feedforward signal; using the equalized cardioid output and the first or second audio input signal, performing proximity feedback to generate a proximity feedback signal; adjusting the frequency f1 of the adaptive low pass filter using the wind feedforward signal and the proximity feedback signal; and providing the equalized cardioid output signal for use in receiving captured audio.

Abstract: A first image may be received by a processor. The processor may identify an image quality measure of which to evaluate the first image. The processor may compare the first image to one or more images. The processor may generate a first image quality score for the first image based on the comparing. The processor may convert the first image quality score into a first micro air-quality index. The processor may transmit the first micro air-quality index to a recording device. Additionally, a recording device may capture a first image. The recording device may send the first image to a database that may include a model associated with an image quality measure. The recording device may receive a first micro air-quality index associated with the image quality measure. The recording device may rearrange a display of the first image to display the first micro air-quality index.

Abstract: A first image may be received by a processor. The processor may identify an image quality measure of which to evaluate the first image. The processor may compare the first image to one or more images. The processor may generate a first image quality score for the first image based on the comparing. The processor may convert the first image quality score into a first micro air-quality index. The processor may transmit the first micro air-quality index to a recording device. Additionally, a recording device may capture a first image. The recording device may send the first image to a database that may include a model associated with an image quality measure. The recording device may receive a first micro air-quality index associated with the image quality measure. The recording device may rearrange a display of the first image to display the first micro air-quality index.

Abstract: Cardioid adaptive filtering includes receiving a first and second audio signals from first and second omnidirectional microphones; combining the audio input signals into a cardioid signal; filtering the cardioid signal to create a first filtered output using an adaptive low pass filter controlled by a frequency control, the adaptive low pass filter having a controllable corner frequency f1; filtering the first filtered output, using a high frequency gain filter with a corner frequency f2, to create an equalized cardioid output signal; performing feedforward processing of the audio input signals to provide a wind feedforward signal; using the equalized cardioid output and the first or second audio input signal, performing proximity feedback to generate a proximity feedback signal; adjusting the frequency f1 of the adaptive low pass filter using the wind feedforward signal and the proximity feedback signal; and providing the equalized cardioid output signal for use in receiving captured audio.

Abstract: An audio system includes a loudspeaker, a first microphone, an echo canceller, and a second microphone within the loudspeaker enclosure coupled to the loudspeaker. The first microphone provides an environmental acoustic signal to the echo canceller. The second microphone can be a high acoustic overload microphone and be placed in a back cavity of the speaker enclosure. A speaker signal is used to drive the loudspeaker, which may produce non-linear distortions in the acoustic output. The second microphone senses a signal that includes both the linear and non-linear distortions. This sensed signal is used to remove both the linear and the non-linear distortions from the environmental acoustic signal picked up from the first microphone and processed by the echo canceller.

Abstract: A server provides media and telephony services in a telecommunications network. The server has a distributed, object-oriented software architecture, allowing client applications to access resources located anywhere in the network. The server provides interfaces to media and telephony resources so that client applications, which may access the server through an IP data network, can access the resources. The software architecture framework is provided by Common Object Request Broker Architecture (CORBA).

Abstract: To provide resource management in a distributed object-oriented client/server computer system, resources allocated on a server on behalf of processes running on a client are recovered when the processes on the client no longer need to access the resource or when they terminate normally or abnormally. Reference counting is used on the server in combination with the use of smart proxies on the client so that resources on the server can be recovered.

Abstract: A server provides media and telephony services in a telecommunications network. The server has a distributed, object-oriented software architecture, allowing client applications to access resources located anywhere in the network. The server provides interfaces to media and telephony resources so that client applications, which may access the server through an IP data network, can access the resources. The software architecture framework is provided by Common Object Request Broker Architecture (CORBA). The interfaces provided by the server are Interface Definition Language (IDL) application program interfaces (APIs) implemented using a distributed object model such as CORBA.

Abstract: Methods and apparatus transform a state-based application into an executable program. A script representing a state-table application is exported from a development environment for a state-based system. The script is translated into a specifically structured, compilable code sequence. e.g., in the Java or C++ programming language. The code is compiled with a library, allowing the executable program to interface with a hardware platform. In order for the executable program to interface with a different hardware platform, only the library needs to be modified.