APPARATUS FOR AUDIO SIGNAL PROCESSING

APPARATUS FOR AUDIO SIGNAL PROCESSING

An apparatus for generating time-domain audio samples or synthesis filterbank (300) comprises a calculator (310) for calculating a frame (330) comprising a sequence of intermediate time-domain samples from audio subband values of block (320). The calculator (310) is coupled to a synthesis windower (...

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Hauptverfasser: Schmidt, Markus, Geiger, Ralf, Edler, Bernd, Mellar, Michael, Lutzky, Manfred, Gayer, Marc, Schuller, Gerald, Multrus, Markus, Lohwasser, Markus, Grill, Bernhard, Schnell, Markus
Format: Patent
Sprache:eng ; fre ; ger
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ACOUSTICS
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
MUSICAL INSTRUMENTS
PHYSICS
RESONATORS
SPEECH ANALYSIS OR SYNTHESIS
SPEECH OR AUDIO CODING OR DECODING
SPEECH OR VOICE PROCESSING
SPEECH RECOGNITION
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creator Schmidt, Markus
Geiger, Ralf
Edler, Bernd
Mellar, Michael
Lutzky, Manfred
Gayer, Marc
Schuller, Gerald
Multrus, Markus
Lohwasser, Markus
Grill, Bernhard
Schnell, Markus
description An apparatus for generating time-domain audio samples or synthesis filterbank (300) comprises a calculator (310) for calculating a frame (330) comprising a sequence of intermediate time-domain samples from audio subband values of block (320). The calculator (310) is coupled to a synthesis windower (360) to which the frame (330) of intermediate time-domain samples is provided. The synthesis windower (360) is adapted to windowing the sequence of intermediate time-domain samples using a synthesis window function (370) and provides a frame (380) of windowed intermediate time-domain samples. The synthesis windower (360) is coupled to an overlap-adder output stage (400) that obtains a block (410) of time-domain samples. The block (410) of the time-domain (output) samples can then for instance be provided to further components for further processing, storing or transforming into audible audio signals.
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subjects ACOUSTICS
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
MUSICAL INSTRUMENTS
PHYSICS
RESONATORS
SPEECH ANALYSIS OR SYNTHESIS
SPEECH OR AUDIO CODING OR DECODING
SPEECH OR VOICE PROCESSING
SPEECH RECOGNITION
title APPARATUS FOR AUDIO SIGNAL PROCESSING
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