Apparatus and method for encoding or decoding directional audio coding parameters using different time/frequency resolutions

A method for encoding, the method comprising:

• receiving directional audio coding parameters comprising diffuseness parameters and direction parameters;
• and
• calculating the diffuseness parameters with a first time or frequency resolution and calculating the direction parameters with a second time or frequency resolution.

A decoder for decoding, comprising:

• a parameter processor for decoding encoded directional audio coding parameters comprising encoded diffuseness parameters and encoded direction parameters to obtain decoded diffuseness parameters with a first time or frequency resolution and decoded direction parameters with a second time or frequency resolution, the second time or frequency resolution being different from the first time or frequency resolution;
• and
• a parameter resolution converter for converting the encoded or decoded diffuseness parameters or the encoded or decoded direction parameters into converted diffuseness parameters or converted direction parameters having a third time or frequency resolution.

A method of decoding, the method comprising:

• decoding encoded directional audio coding parameters comprising encoded diffuseness parameters and encoded direction parameters to obtain decoded diffuseness parameters with a first time or frequency resolution and decoded direction parameters with a second time or frequency resolution, the second time or frequency resolution being different from the first time or frequency resolution;
• and
• converting the encoded or decoded diffuseness parameters or the encoded or decoded direction parameters into converted diffuseness parameters or converted direction parameters having a third time or frequency resolution.

A non-transitory storage medium having stored there on a computer program for performing, when running on a computer or a processor, a method of encoding, the method comprising:

• receiving directional audio coding parameters comprising diffuseness parameters and direction parameters;
• and
• calculating the diffuseness parameters with a first time or frequency resolution and calculating the direction parameters with a second time or frequency resolution.

A non-transitory storage medium having stored there on a computer program for performing, when running on a computer or a processor, a method of decoding, the method comprising:

• decoding encoded directional audio coding parameters comprising encoded diffuseness parameters and encoded direction parameters to obtain decoded diffuseness parameters with a first time or frequency resolution and decoded direction parameters with a second time or frequency resolution, the second time or frequency resolution being different from the first time or frequency resolution;
• and
• converting the encoded or decoded diffuseness parameters or the encoded or decoded direction parameters into converted diffuseness parameters or converted direction parameters having a third time or frequency resolution.