Harman International Industries, Inc.

Christopher M Belcher

James D Pennock

Robin M Urry

Ronald Baker

Brian R Parker

Richard C Watson

Roger T Johnsen

John Paul Devlin

Jan Schminke

Jason J Cooper

William E Clements

Glen A Rutledge

Peter R Lupini

Craig B DeVries

Norm Campbell

Darrell Brent Erickson

Josh D Kapp

Donald Milham

Michael Gordon

Ken Fredrickson

In one embodiment, an apparatus comprising a first audio looping device is provided. The first audio looping device is electrically coupled to a computing device. The first audio looping device is programmed to receive a first audio signal from a musical instrument and to store the first audio signal. The first audio looping device is further programmed to playback the stored first audio signal as a first audio loop a number of times and to transmit the first audio loop to a second audio looping device via the first computing device. The first audio looping device is further programmed to receive a second audio loop from the second audio looping device via the computing device.

Multiple distant musician audio loop recording apparatus and listening method

A feedback suppression system for reducing acoustic feedback may include a controller configured to buffer a series of incoming digital sample signals to provide a plurality of buffered signals, the incoming digital sample signal being indicative of an audio input signal that includes audio data and acoustic feedback, determine a complex spectrum of the plurality of buffered signals, determine a magnitude squared spectrum from the complex spectrum, identify at least one peak in the magnitude squared spectrum, identify a frequency of the at least one identified peak using a phase enhanced frequency estimate, and set a notch filter at the identified frequency to eliminate the acoustic feedback of the audio input signal.

Feedback suppression using phase enhanced frequency estimation

A musical apparatus including a first audio looping device for being electrically coupled to a second audio looping device is provided. The first audio looping device being configured to receive a first audio signal from a first musical instrument and to store the first audio signal. The first audio looping device being further configured to playback the stored first audio signal as a first loop a first number of times. The first audio looping device being further configured to transmit synchronization information to the second audio looping device that stores a second audio signal and that plays back the stored second audio signal as a second loop a second number of times. The synchronization information enabling the first loop and the second loop to be synchronized with one another during playback.

Remote control and synchronization of multiple audio recording looping devices

A configurable device interface enhances the ability of a processor to communicate with other devices. A configurable serial interface promotes efficient data transmission and reception. The configurable serial interface includes a source of transmit data that the configurable serial interface may access even while data reception is simultaneously completing.

Serial communication input output interface engine

Various embodiments relate to a systems and methods for downloading one or more effects to an effects unit. One or more effects may be received. On an effects unit. Audio signals for the one or more effects may be processed based on instructions for processing the audio signals received with the one or more effects. For each subsequent effect received on the effect unit, the processing of the audio signals may be reprogrammed. The one or more effects may be transmitted for output from the effects unit.

Methods and systems for downloading effects to an effects unit

An architecture for a digital signal processor alleviates the difficulties and complexities normally associated with writing and optimizing programs to avoid stalls during which one instruction awaits the result of a prior instruction. The architecture coordinates the processing of data for multiple instructions through a multiple stage data pipeline. As a result, the architecture not only supports simultaneous execution of multiple programs, but also permits each program to execute without delays caused by inter-relationships between instructions within the program.

Interleaved hardware multithreading processor architecture

A memory update engine provides flexible modification of data in memory. A processor may employ the update engine to update filter coefficients, special effects parameters, signal sample processing instructions, or any other instruction or data during processing. The update engine supports dynamic updating without requiring processor shutdown, thereby allowing the processor to seamlessly continue operation during a live performance.

Dynamic instruction and data updating architecture

Audio input/output device

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Lehi, UT, United States of America

Christopher M Belcher