US 12,143,081 B2
Method for increasing perceived loudness of an audio data signal
Alix Jeannerot, Struer (DK); Niels de Koeijer, Struer (DK); Pablo Martínez-Nuevo, Frederiksberg (DK); Martin Bo Møller, Copenhagen S (DK); and Jakob Dyreby, Struer (DK)
Assigned to Bang & Olufsen A/S, Struer (DK)
Filed by Bang & Olufsen A/S, Struer (DK)
Filed on Aug. 12, 2022, as Appl. No. 17/886,627.
Claims priority of application No. PA202100810 (DK), filed on Aug. 17, 2021.
Prior Publication US 2023/0163739 A1, May 25, 2023
Int. Cl. H03G 3/30 (2006.01); G06F 3/16 (2006.01); H04R 3/04 (2006.01)
CPC H03G 3/3005 (2013.01) [G06F 3/165 (2013.01); H04R 3/04 (2013.01); H04R 2430/01 (2013.01)] 20 Claims
OG exemplary drawing
 
19. A loudspeaker device comprising a signal processing device configured to:
obtain a first digital audio data signal;
determine at least one temporal amplitude peak in the first digital audio data signal;
generate a second digital audio data signal by reducing the at least one temporal amplitude peak in the first digital audio data signal based on a predicted perceptual difference model representing a predicted perceptual difference between the first digital audio data signal and a peak reduced version of the first digital audio data signal; and
generate a third digital audio data signal by amplifying the second digital audio data signal so that a peak of the second digital audio data signal has a predetermined signal value, wherein a perceived loudness of the third digital audio data signal is larger than a perceived loudness of the first digital audio data signal;
wherein:
the loudspeaker device further comprises a loudspeaker driver and an amplification arrangement connected to the loudspeaker driver and the signal processing device, the amplification arrangement being configured to provide an audio signal to the loudspeaker driver; and
the signal processing device is configured to output the second digital audio data signal to the amplification arrangement.