Audio decoder, audio encoder, method for providing a decoded audio signal, method for providing an encoded audio signal, audio stream, audio stream provider and computer program using a stream identifier

A method for providing a decoded audio signal representation on the basis of an encoded audio signal representation,

• wherein the method comprises adjusting decoding parameters in dependence on a configuration information,
• wherein the method comprises decoding one or more audio frames using a current configuration information, and
• wherein the method comprises comparing a configuration information in a configuration structure associated with one or more frames to be decoded, with the current configuration information, and wherein the method comprises making a transition to perform a decoding using the configuration information in the configuration structure associated with the one or more frames to be decoded as a new configuration information if the configuration information in the configuration structure associated with the one or more frames to be decoded, or a relevant portion of the configuration information in the configuration structure associated with the one or more frames to be decoded, is different from the current configuration information;
• wherein the method comprises considering a stream identifier information included in the configuration structure when comparing the configuration information, such that a difference between a stream identifier previously acquired in the audio decoding and a stream identifier represented by the stream identifier information in the configuration structure associated with the one or more frames to be decoded causes to make the transition;
• wherein the configuration information comprises an information about a sampling frequency.

An audio decoder for providing a decoded audio signal representation on the basis of an encoded audio signal representation,

• wherein the audio decoder is configured to adjust decoding parameters in dependence on a configuration information,
• wherein the audio decoder is configured to decode one or more audio frames using a current configuration information, and
• wherein the audio decoder is configured to compare a configuration information in a configuration structure associated with one or more frames to be decoded, with the current configuration information, and to make a transition to perform a decoding using the configuration information in the configuration structure associated with the one or more frames to be decoded as a new configuration information if the configuration information in the configuration structure associated with the one or more frames to be decoded, or a relevant portion of the configuration information in the configuration structure associated with the one or more frames to be decoded, is different from the current configuration information;
• wherein the audio decoder is configured to consider a stream identifier information included in the configuration structure when comparing the configuration information, such that a difference between a stream identifier previously acquired by the audio decoder and a stream identifier represented by the stream identifier information in the configuration structure associated with the one or more frames to be decoded causes to make the transition;
• wherein an encoded audio frame comprises an encoded representation of an audio signal in the form of encoded spectral values and encoded scale factors, and/or in the form of encoded spectral values and encoded linear-prediction-coding coefficients, and/or in the form of an encoded excitation and encoded linear-prediction-coding coefficients.

A method for providing a decoded audio signal representation on the basis of an encoded audio signal representation,

• wherein the method comprises adjusting decoding parameters in dependence on a configuration information,
• wherein the method comprises decoding one or more audio frames using a current configuration information, and
• wherein the method comprises comparing a configuration information in a configuration structure associated with one or more frames to be decoded, with the current configuration information, and wherein the method comprises making a transition to perform a decoding using the configuration information in the configuration structure associated with the one or more frames to be decoded as a new configuration information if the configuration information in the configuration structure associated with the one or more frames to be decoded, or a relevant portion of the configuration information in the configuration structure associated with the one or more frames to be decoded, is different from the current configuration information;
• wherein the method comprises considering a stream identifier information included in the configuration structure when comparing the configuration information, such that a difference between a stream identifier previously acquired in the audio decoding and a stream identifier represented by the stream identifier information in the configuration structure associated with the one or more frames to be decoded causes to make the transition;
• wherein an encoded audio frame comprises an encoded representation of an audio signal in the form of encoded spectral values and encoded scale factors, and/or in the form of encoded spectral values and encoded linear-prediction-coding coefficients, and/or in the form of an encoded excitation and encoded linear-prediction-coding coefficients.