Apparatus for providing an audio signal for reproduction by a sound transducer, system, method and computer program

An apparatus for processing an audio signal for reproduction by a sound transducer, the apparatus comprising:

• an equalization parameter determinator for determining a set of equalization parameters;
• and
• an equalizer configured to equalize an input audio signal, to acquire an equalized audio signal;
• wherein the equalization parameter determinator is configured to acquire a set of equalization parameters using a measurement of an impedance of the sound transducer over frequency;
• wherein the equalization parameter determinator is configured to combine equalization parameters associated with a plurality of reference sound transducers, the reference impedance curves over frequency of which exhibit at least a similarity in at least one distinctive feature with the measured impedance over frequency of the sound transducer, to acquire the set of equalization parameters.

A system, comprising:

• a global equalization database, which defines an association between types of sound transducers and corresponding sets of equalization parameters and which is accessible by multiple apparatuses for processing an audio signal of multiple users, such that it is possible to share an equalization parameter setting identified by a user with other users;
• an apparatus for processing an audio signal for reproduction by a sound transducer, the apparatus comprising:
• an equalization parameter determinator for determining a set of equalization parameters;
• and
• an equalizer configured to equalize an input audio signal, to acquire an equalized audio signal;
• wherein the equalization parameter determinator is configured to set the equalization parameters in dependence on a user input from a user interface;
• and
• wherein the equalization parameter determinator is configured to upload the set of equalization parameters and an information about the sound transducer to the global equalization database, which is accessible by multiple apparatuses for processing an audio signal of multiple users, such that it is possible to share an equalization parameter setting identified by a user with other users.

A method for processing an audio signal for reproduction by a sound transducer, the method comprising:

• determining a set of equalization parameters;
• and
• equalizing an input audio signal, to acquire an equalized audio signal;
• wherein determining the set of equalization parameters comprises identifying a sound transducer using an image recognition, and selecting a set of equalization parameters in dependence on a result of the sound transducer identification,
• wherein the image recognition comprises identifying the sound transducer on the basis of a specific shape of the sound transducer.

A method for processing an audio signal for reproduction by a sound transducer, the method comprising:

• determining a set of equalization parameters;
• and
• equalizing an input audio signal, to acquire an equalized audio signal;
• wherein a set of equalization parameters is acquired using a measurement of an impedance of the sound transducer over frequency;
• wherein the method comprises combining equalization parameters associated with a plurality of reference sound transducers, the reference impedance curves over frequency of which exhibit at least a similarity in at least one distinctive feature with the measured impedance over frequency of the sound transducer, to acquire the set of equalization parameters.

A method for processing an audio signal for reproduction by a sound transducer, the method comprising:

• determining a set of equalization parameters;
• and
• equalizing an input audio signal, to acquire an equalized audio signal;
• wherein the equalization parameters are set in dependence on a user input from a user interface;
• and
• wherein the set of equalization parameters and an information about the sound transducer are uploaded to a global equalization parameter database, which is accessible by multiple apparatuses for processing an audio signal of multiple users;
• and
• sharing an equalization parameter setting identified by a user with other users.