Method for generating a conversion filter for converting a multidimensional output audio signal into a two-dimensional audio signal for listening

Abstract

The present invention relates to methods for generating a conversion filter (KF) for converting a multidimensional original audio signal (AA) into a two-dimensional listening audio signal (HA), comprising the following steps: 1. Transformation of a time-based original audio signal (PAA) into a frequency-based original audio signal (FAA) 2. Sequential optimization of a basis conversion matrix (BKM) for converting the frequency-based original audio signal (FAA) into a frequency-based listening audio signal (FHA) using a first optimization algorithm (KA1), preferably starting from low frequencies and ascending at least up to a switching frequency (UF) 3. Sequential optimization of the basis conversion matrix (BKM) for converting the frequency-based original audio signal (FAA) into a frequency-based listening audio signal (FHA) using a second optimization algorithm (KA2), preferably starting from the switching frequency (UF) and ascending to high frequencies 4. Storing the optimized basis conversion matrix (BKM) of the correlation between the frequency-based original audio signal (FAA) and the frequency-based listening audio signal (FHA) in a frequency-based conversion matrix (FKM) 5. Transforming the frequency-based conversion matrix (FKM) into a time-based conversion matrix (PKM) as a conversion filter (KF).

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