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Digital Audio

Digital Audio-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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Wireless microphone system for an article of footwear
Msg Sports And Entertainment, Llc
January 11, 2018 - N°20180007996

An article of footwear that produces an audio component for a performance includes a rigid heel assembly that attaches to the article of footwear. The rigid heel assembly has a cavity with an open end. The cavity houses an audio transmission assembly that includes a transmitter. A microphone converts the audio component of the performance into a digital audio signal ...
Decoder for decoding a media signal and encoder for encoding secondary media data comprising metadata ...
Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.
January 04, 2018 - N°20180007398

An encoder for encoding secondary media data including metadata and control data for primary media data is shown, wherein the encoder is configured to encode the secondary media data using adding redundancy or bandlimiting and wherein the encoder is configured to output the encoded secondary media data as a stream of digital words. Therefore, the stream of digital words may ...
Utilizing audio digital impact to create digital media presentations
Adobe Systems Incorporated
December 28, 2017 - N°20170372755

Systems and methods disclosed create one or more digital media presentations based on impact values. In particular, in one or more embodiments, systems and methods generate impact values based on a change in a measure of energy associated with digital audio content over time. For instance, systems and methods generate impact values by calculating a difference in a measure of ...
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Method and installation for processing a sequence of signals for polyphonic note recognition
Uberchord Engineering Gmbh
December 21, 2017 - N°20170365244

This is a method and installation in which a time-domain digital audio signal is split into a plurality of narrow-band time-domain digital audio signals confined to specific frequency bands, short-term segments of which are temporarily stored in memory. The method comprises the use of signal processing algorithms for extracting multiple signal features from said short-term segments in a fixed sequence ...
Signal processing method and device
Huawei Technologies Co., Ltd.
December 21, 2017 - N°20170364479

A method for processing an audio signal, including: sound is converted to an analog audio input signal and converted into a digital audio signal; a windowed time domain signal is obtained and then a twiddled signal is obtained; the twiddled signal is pre-rotated and then an fft is performed; an in-place fixed rotate compensation is performed on the fft signal ...
System and method for interleaving digital audio signal including pwm signal and digital audio processing ...
Neofidelity, Inc.
December 14, 2017 - N°20170359043

A system, a method for interleaving a digital audio signal including a pwm signal, and a digital audio processing device employing the same in accordance with the present invention are disclosed. The system, the method and the digital audio processing device is capable of minimizing the interference with an rf signal such as an am signal or an fm signal ...
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Audio digital signal processor utilizing a hybrid network architecture
Crestron Electronics, Inc.
December 07, 2017 - N°20170352357

A system and method executed by audio processing software on one or more electronic devices in a computer system to process digital audio signals. The system comprises a digitizer for digitizing a received audio signal; and processor for performing a plurality of audio processing functions on the digitized audio signals, each of the audio processing functions having at least one ...
Mobile device charger with audio interface
Scosche Industries, Inc.
December 07, 2017 - N°20170351479

A device for converting the digital audio signal of a digital device in to an analog audio signal in a vehicle includes a digital audio input jack, a digital to analog converter, a preamplifier, and an analog audio jack. The digital audio port is configured to provide power to a digital audio device connected thereto, and the digital audio signal ...
High current low-cost dc coupled dac follower low pass filter headphone amplifier
Tymphany Hk Limited
November 30, 2017 - N°20170347195

A digital-to-analog converter (dac) circuit includes a pair of output stages, each including a dac configured to convert a digital audio signal into an analog audio signal. A low-pass filter circuit includes an operational amplifier in signal communication with the dac. The operation amplifier generates a filtered analog signal based on the analog audio signal. An amplifier network generates an ...
Digital audio-video content mobile library
Warner Bros. Entertainment Inc.
November 30, 2017 - N°20170347140

Methods for managing digital content include authenticating a user account identifier from a client device over a computer network, registering a telephone number for at least one wireless mobile device in a registry identified with the user account based on the authenticating, as a pre-authorized identifier for accessing digital content licensed for use with the client device. The methods include ...
Synchronization of digital algorithmic state data with audio trace signals
Avaya Inc.
November 30, 2017 - N°20170345445

Embodiments disclosed herein provide systems, methods, and computer readable media for synchronizing algorithmic state data with audio trace signals. In a particular embodiment, a method provides processing digital audio data linearly in the time domain using a digital audio processing algorithm. The method further provides determining the digital algorithmic state data comprising an output state of the digital audio processing ...
Method for associating media files with additional content
Acast Ab
November 30, 2017 - N°20170344240

A method for presenting digitally stored information to a user, including providing, from a server to a client device, timeline information having first and second time points, each time point being relative to when a user accesses the timeline information, the first time point being associated with a digital audio or digital video media file, the second time point being ...
Fix-smart wearable learning device with adjustable finger ring
November 16, 2017 - N°20170330471

An innovative method of learning with a wearable device with an adjustable and swivel ring band for placement on a user's finger for easy operation with one thumb. The device contains a voice recorder, a digital audio/video player (mp3/mp4 player), a microphone, and built-in speakers, for simultaneous recording on previously recording audio files. The device also contains four ...
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Digital Audio Patent Applications
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System with wireless earphones
November 02, 2017 - N°20170318378

Apparatus comprises adapter and speaker system. Adapter is configured to plug into port of personal digital audio player. Speaker system is in communication with adapter, and comprises multiple acoustic transducers, programmable processor circuit, and wireless communication circuit. In first operational mode, processor circuit receives, via adapter, and processes digital audio content from personal digital audio player into which adapter is ...
Simultaneously rendering a plurality of digital media streams in a synchronized manner by using a ...
November 02, 2017 - N°20170318319

A plurality of digital media streams are synchronized by using a descriptor file. The plurality of digital media streams includes a first digital media stream containing a digital audio narration of an originating work and a second digital media stream containing digital media content corresponding to the same originating work. The descriptor file contains location information for the plurality of ...
Audio watermarking system and processes
November 02, 2017 - N°20170316787

An audio watermarking system and processes are disclosed. A process includes steps for assigning an audio watermarking plug-in tool to a master channel of an audio content project in a digital audio workstation software application, editing the audio content project, and saving the watermarked audio content. Another process includes steps for assigning an audio watermarking plug-in tool to a master ...
Apparatus and method for saving energy in an active loudspeaker
Genelec Oy
October 26, 2017 - N°20170311076

The invention relates to a method and apparatus for recognizing a digital audio signal in a system, in which at least some of the electronic components are at times in sleep or unenergized mode, in which method the digital audio signal is amplified and recognized, the amplified signal is decoded in a decoding circuit, the decoded signal is led to ...
Time-alignment measurement for hybrid hd radio tm technology
October 19, 2017 - N°20170302432

A method for processing a digital audio broadcast signal in a radio receiver, includes: receiving a hybrid broadcast signal; demodulating the hybrid broadcast signal to produce an analog audio stream and a digital audio stream; and using a normalized cross-correlation of envelopes of the analog audio stream and the digital audio stream to measure a time offset between the analog ...
Mixing of single-bit and multi-bit audio signals for simultaneous output
October 19, 2017 - N°20170300290

An audio processor may process dissimilarly formatted digital audio signals and produce an analog output for reproduction by a transducer, such as a speaker. The audio processor may be, for example, a digital-to-analog converter (dac) with multiple digital inputs and a single analog output. The audio processor may also include other components, such as processing components, filters, equalizers, amplifiers, and ...
Audio signal processing circuit and electronic apparatus including the same
Rohm Co., Ltd.
October 12, 2017 - N°20170295428

An audio signal processing circuit is disclosed. The audio signal processing circuit includes a digital signal processing part formed in a digital area, and configured to process a digital audio signal; an analog circuit formed in an analog area, and configured to process an analog audio signal; a frequency divider formed in the digital area, and configured to divide a ...
Audio amplifier system
Nxp B.v.
October 12, 2017 - N°20170294888

An audio amplifier system is described comprising: a variable gain audio processor for processing digital audio signal, a digital to analog converter coupled to the audio processor, and configured to receive the processed digital audio signal, a variable gain amplifier having an input coupled to the output of the digital to analog converter and operably connected to a power supply, ...
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