Splitting frequency-domain processing between multiple DSP cores

An audio processing system may split frequency-domain processing between multiple DSP cores. Processing multi-channel audio data-e.g., from devices with multiple speakers-may require more computing power than available on a single DSP core. Such processing typically occurs in the frequency domain; D...

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Bibliographic Details
Main Authors Dhanapalan, Ajay Kumar, Zandona, Nicola
Format Patent
LanguageEnglish
Published 29.11.2022
Subjects
ACOUSTICS
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
MUSICAL INSTRUMENTS
PHYSICS
PUBLIC ADDRESS SYSTEMS
SPEECH ANALYSIS OR SYNTHESIS
SPEECH OR AUDIO CODING OR DECODING
SPEECH OR VOICE PROCESSING
SPEECH RECOGNITION
STEREOPHONIC SYSTEMS
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Summary:An audio processing system may split frequency-domain processing between multiple DSP cores. Processing multi-channel audio data-e.g., from devices with multiple speakers-may require more computing power than available on a single DSP core. Such processing typically occurs in the frequency domain; DSP cores, however, typically communicate via ports configured for transferring data in the time-domain. Converting frequency-domain data into the time domain for transfer requires additional resources and introduces lag. Furthermore, transferring frequency-domain data may result in scheduling issues due to a mismatch between buffer size, bit rate, and the size of the frequency-domain data chunks transferred. However, the buffer size and bit rate may be artificially configured to transfer a chunk of frequency-domain data corresponding to a delay in the communication mechanism used by the DSP cores. In this manner, frequency-domain data can be transferred with a proper periodicity.
Bibliography:Application Number: US202117154055