Loudness adjustment with self-adaptive gain offsets
AssigneeHarman Becker Automotive Systems GmbH
InventorsSeyed-Ali Azizi, Wolfgang Hess, Michael Zeller
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Abstract
A method for adjusting a loudness of an announcement sound signal relative to a loudness of an entertainment sound signal, the method including the steps of determining the loudness of the entertainment sound signal, and adjusting the loudness of the announcement sound signal relative to the entertainment sound signal by determining a self-adaptive gain offset of the announcement sound signal relative to the entertainment sound signal, the self-adaptive gain offset adapting to the auditory perception of a user to which the entertainment sound signal and the announcement sound signal are output.
Claims21
A method for adjusting a loudness of an announcement sound signal relative to a loudness of an entertainment sound signal, the method comprising the following steps:
- determining the loudness of the entertainment sound signal;
- and
- adjusting the loudness of the announcement sound signal relative to the entertainment sound signal using a self-adaptive gain offset of the announcement sound signal relative to the entertainment sound signal, the self-adaptive gain offset having a value that adapts in time to the auditory perception of a user to which the entertainment sound signal and the announcement sound signal are output.
A sound signal adjusting system for adjusting a loudness of an announcement sound signal relative to a loudness of an entertainment sound signal, the system comprising:
- an entertainment loudness determination unit configured to determine the loudness of the entertainment sound signal;
- a gain offset determination unit configured to determine a self-adaptive gain offset of the announcement sound signal relative to the entertainment sound signal;
- and
- an auditory perception determination unit configured to determine the auditory perception of a user of the adjusting system, where the self-adaptive gain offset determination unit adapts the self-adaptive gain offsets over time in accordance with the determined auditory perception as a learning process following previous user volume adjustments:
Gain offset determination unit for adjusting a loudness of an announcement sound signal relative to a loudness of an entertainment sound signal comprising gain offset tables containing the self-adaptive gain offset values depending on the loudness of the entertainment sound signal and depending on a volume level set by the user of the gain determination unit the self-adaptive gain offsets adapting in accordance with an auditory perception of an user of the gain determination unit taking into account previous volume user adjustments.
Dependencies are inferred from the claim text.