Patent classifications
H04R2227/007
DE-MIXING A COMPOSITE AUDIO PROGRAM FOR PLAYBACK WITHIN A VENUE
Systems, methods, and apparatuses can playback a composite audio program that is associated with an event being hosted by a real-world venue. These systems, methods, and apparatuses can seamlessly deconstruct the composite audio program into multiple audio sounds that can be collectively played back by the real-world venue. As part of this deconstruction, these systems, methods, and apparatuses can analyze the audio sounds to identify one or more characteristics, parameters, and/or attributes of these audio sounds. These systems, methods, and apparatuses can intelligently construct an audio presentation from these multiple audio sounds to playback the composite audio program within the real-world venue. As part of this construction, these systems, methods, and apparatuses construct the audio presentation based upon the one or more characteristics, parameters, and/or attributes of these audio sounds. After the constructing the audio presentation, these systems, methods, and apparatuses can configure the real-world venue as outlined in the audio presentation to playback the composite audio program within the real-world venue. As part of this constructing, these systems, methods, and apparatuses can identify audio control signals that configure the real-world venue to playback the audio presentation through real-world loudspeakers within the real-world venue.
RE-MIXING A COMPOSITE AUDIO PROGRAM FOR PLAYBACK WITHIN A REAL-WORLD VENUE
Systems, methods, and apparatuses can playback a composite audio program that is associated with an event being hosted by a real-world venue. These systems, methods, and apparatuses can seamlessly deconstruct the composite audio program into multiple audio sounds that can be collectively played back by the real-world venue. As part of this deconstruction, these systems, methods, and apparatuses can analyze the audio sounds to identify one or more characteristics, parameters, and/or attributes of these audio sounds. These systems, methods, and apparatuses can intelligently construct an audio presentation from these multiple audio sounds to playback the composite audio program within the real-world venue. As part of this construction, these systems, methods, and apparatuses construct the audio presentation based upon the one or more characteristics, parameters, and/or attributes of these audio sounds. After the constructing the audio presentation, these systems, methods, and apparatuses can configure the real-world venue as outlined in the audio presentation to playback the composite audio program within the real-world venue. As part of this constructing, these systems, methods, and apparatuses can identify audio control signals that configure the real-world venue to playback the audio presentation through real-world loudspeakers within the real-world venue.
SPEECH PRIVACY SYSTEM AND/OR ASSOCIATED METHOD
Certain example embodiments relate to speech privacy systems and/or associated methods. The techniques described herein disrupt the intelligibility of the perceived speech by, for example, superimposing onto an original speech signal a masking replica of the original speech signal in which portions of it are smeared by a time delay and/or amplitude adjustment, with the time delays and/or amplitude adjustments oscillating over time. In certain example embodiments, smearing of the original signal may be generated in frequency ranges corresponding to formants, consonant sounds, phonemes, and/or other related or non-related information-carrying building blocks of speech. Additionally, or in the alternative, annoying reverberations particular to a room or area in low frequency ranges may be cut out of the replica signal, without increasing or substantially increasing perceived loudness.
METHOD FOR SOUND REPRODUCTION IN REFLECTION ENVIRONMENTS, IN PARTICULAR IN LISTENING ROOMS
Method in which, primarily in listening rooms, instead of the particular environment's own spatial sound, the spatial sound of a third room may be given an enveloping quality in the perception of the listener. The third room spatial acoustics perceived instead of the listening room spatial acoustics act in the same way in terms of hearing physiology as the spatial acoustics of natural rooms. That is, enveloping in terms of the spatial sound (in a distinction from direct sound). This type of spatial enveloping effect may also be incorporated emotionally by the listener into the auditory event, and has no sweet spot problem (there is a large preferred listening area instead of a preferred listening spot) and allows low frequencies to act in such a way that use of subwoofer speakers may generally be dispensed with.
DE-REVERBERATION CONTROL METHOD AND APPARATUS FOR DEVICE EQUIPPED WITH MICROPHONE
Provided are a de-reverberation control method and apparatus for a device equipped with a microphone. The method includes: reverberation parameters which indicate, at respective moments, reverberation levels of a room environment where the device is located are acquired from an audio signal played by the device; and a de-reverberation mode adopted by the device is dynamically adjusted according to the reverberation levels indicated by the reverberation parameters at different moments and preset correspondences between reverberation levels and de-reverberation modes. By adopting a dynamic de-reverberation mode, the method and the apparatus disclosed herein significantly improve the rate of the recognition of a device for the voice of the user.
Acoustic change detection
A loudspeaker cabinet has a number of pairs of microphones, each pair includes the same internal microphone and a different external microphone. For each pair of microphones, a process (i) receives a first audio signal of sound captured by the internal microphone and a second audio signal of sound captured by the different external microphone, (ii) estimates, using first and second audio signals, a radiation impedance, and (iii) computes a detection value based on the radiation impedance in a frequency band. A difference between (i) a currently computed detection value associated with a given pair of microphones and (ii) a previously computed detection value associated with said given pair, is computed. The sound produced by the cabinet is adjusted, in response to the computed difference meeting a threshold. Other embodiments are also described and claimed.
Acoustic processing device, acoustic processing method, and acoustic processing program
An acoustic processing device comprises: a resonant band detecting means that detects a resonant band of sound output from a speaker based on a measurement result of a predetermined measurement signal reproduced through the speaker; an analyzing means that analyzes the measurement result of the predetermined measurement signal; a control parameter generating means that generates a control parameter for controlling the resonant band detected by the resonant band detecting means based on an analysis result by the analyzing means; and an audio signal controlling means that controls an audio signal input from a predetermined audio signal reproducing device based on the control parameter generated by the control parameter generating means such that a resonant band component of reproduced sound of the audio signal is suppressed to be short on a time axis.
Acoustic system
An acoustic system includes: a first customer-side microphone; a first counselor-side microphone; a first sound changing unit; a first loudspeaker; a second customer-side microphone; a second counselor-side microphone; and a second loudspeaker. Between the second loudspeaker and the first customer-side microphone, a first sound transmission path is provided. Also, between the second loudspeaker and the first counselor-side microphone, a second sound transmission path is provided. These sound transmission paths have substantially the same length. The first sound signal generated by the first customer-side microphone is made to have a phase substantially opposite to that of the second sound signal generated by the first counselor-side microphone, and the sound signals are added together.
Playback Device Calibration Based on Representative Spectral Characteristics
A computing device may maintain a database of representative spectral characteristics. The computing device may also receive particular spectral data associated with a particular playback environment corresponding to the particular playback device. Based on the particular spectral data, the computing device may identify one of the representative spectral characteristics from the database that substantially matches the particular spectral data, and then identify, in the database, an audio processing algorithm based on a) the identified representative spectral characteristic and b) at least one characteristic of the particular playback device. The computing device may then transmit, to the particular playback device, data indicating the identified audio processing algorithm.
METHOD AND SYSTEM FOR ACOUSTIC SOURCE ENHANCEMENT USING ACOUSTIC SENSOR ARRAY
Method and system for enhancing acoustic performances in an adverse acoustic environment, where the system comprises: an array of acoustic sensors having different directivities; and an analysis module being configured for optimizing signal enhancement of at least one source, by correlating the sensors according to respective position of the at least one source in respect to the directivity of the acoustic sensors, based on reflections from reverberating surfaces in the specific acoustic environment, wherein the optimization and sensors directivity allows maintaining the sensor array in compact dimensions without affecting signal enhancement and source separation.