[go: up one dir, main page]

Freed et al., 2008 - Google Patents

Applications of environmental sensing for spherical loudspeaker arrays

Freed et al., 2008

View PDF
Document ID
2233197849720055556
Author
Freed A
Schmeder A
Zotter F
Publication year
Publication venue
IASTED Signal and Image Processing

External Links

Snippet

Signal processing for loudspeaker arrays can be used to control complex spatial distributions of acoustic energy. Because of the expense and challenges of providing individual control over a unique sound source for each driver, the first generation of …
Continue reading at www.academia.edu (PDF) (other versions)

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • H04S7/301—Automatic calibration of stereophonic sound system, e.g. with test microphone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • H04S7/308—Electronic adaptation dependent on speaker or headphone connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2227/00—Details of public address [PA] systems covered by H04R27/00 but not provided for in any of its subgroups
    • H04R2227/003—Digital PA systems using, e.g. LAN or internet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
    • H04R2201/021—Transducers or their casings adapted for mounting in or to a wall or ceiling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/15—Aspects of sound capture and related signal processing for recording or reproduction
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for

Similar Documents

Publication Publication Date Title
Grimm et al. A toolbox for rendering virtual acoustic environments in the context of audiology
US7994412B2 (en) Sound system and method for creating a sound event based on a modeled sound field
CN103650540B (en) A Method for Efficient Sound Field Control of Compact Loudspeaker Arrays
Meyer et al. Spherical microphone arrays for 3D sound recording
US20100142732A1 (en) Microphone array
TW202101422A (en) Steerable speaker array, system, and method for the same
JP5123843B2 (en) Microphone array and digital signal processing system
Rafaely et al. Optimal model-based beamforming and independent steering for spherical loudspeaker arrays
Pinardi et al. Full-digital microphone meta-arrays for consumer electronics
Götz et al. Autonomous robot twin system for room acoustic measurements
Freed et al. Applications of environmental sensing for spherical loudspeaker arrays
Farina et al. Measuring spatial MIMO impulse responses in rooms employing spherical transducer arrays
Schmeder An exploration of design parameters for human-interactive systems with compact spherical loudspeaker arrays
Misdariis et al. Radiation control on a multi-loudspeaker device
Plessas Rigid sphere microphone arrays for spatial recording and holography
Zotter et al. Efficient directivity pattern control for spherical loudspeaker arrays
Peters et al. Beamforming using a spherical microphone array based on legacy microphone characteristics
Okamoto et al. Improving sound field reproduction in a small room based on higher-order ambisonics with a 157-loudspeaker array
Miranda et al. A concentric compact spherical microphone and loudspeaker array for acoustical measurements
CN113615213A (en) device and method
Gifford et al. Near-field tangential particle velocities: piston radiator vs. QRD phased linear array
WO2021024806A1 (en) Speaker array, signal processing device, signal processing method, and signal processing program
Rafaely et al. Analytical beamforming for spherical loudspeaker arrays
Cabrera et al. Spatial analysis of acoustic support on auditorium stages: modelling and measurement using high-order transducers
Johnson et al. Assessment techniques for new mechatronic instruments as applied to speaker. motion