Apparatus and method for adaptive background audio gain smoothing

Method for providing a sequence of output gains, wherein the sequence of output gains is suitable for attenuating a background signal of an audio signal, wherein the method comprises:

• receiving or determining signal characteristics information on one or more characteristics of the audio signal, wherein the signal characteristics information depends on the background signal, wherein the signal characteristics information comprises a sequence of input gains which depends on the background signal and on a foreground signal of the audio signal;
• and
• determining the sequence of output gains depending on the sequence of input gains;
• wherein, to determine the sequence of outputs gains, modifying a current gain value of a current gain of the sequence of output gains to a target gain value is conducted, such that a plurality of succeeding gains, which succeed the current gain in the sequence of output gains, is determined by gradually changing the current gain value according to a modification rule during a transition period to the target gain value,
• wherein the modification rule depends on the signal characteristics information;
• and/or wherein the target gain value is determined depending on a further one of the one or more signal characteristics in addition to the sequence of input gains.

Non-transitory digital storage medium having a computer program stored thereon to perform the method for providing a sequence of output gains, wherein the sequence of output gains is suitable for attenuating a background signal of an audio signal, wherein the method comprises:

• receiving or determining signal characteristics information on one or more characteristics of the audio signal, wherein the signal characteristics information depends on the background signal, wherein the signal characteristics information comprises a sequence of input gains which depends on the background signal and on a foreground signal of the audio signal;
• and
• determining the sequence of output gains depending on the sequence of input gains;
• wherein, to determine the sequence of outputs gains, modifying a current gain value of a current gain of the sequence of output gains to a target gain value is conducted, such that a plurality of succeeding gains, which succeed the current gain in the sequence of output gains, is determined by gradually changing the current gain value according to a modification rule during a transition period to the target gain value,
• wherein the modification rule depends on the signal characteristics information;
• and/or wherein the target gain value is determined depending on a further one of the one or more signal characteristics in addition to the sequence of input gains,
• when said computer program is run by a computer.