Resampling of an audio signal interrupted with a variable sampling frequency according to the frame

A device for resampling an audio frequency signal at an output sampling frequency, for a current frame of the signal, wherein a preceding frame is sampled at a first sampling frequency different from a second sampling frequency of the current frame, wherein the device comprises:

• a module determining a first signal segment by addition of a first predetermined number of samples at zero at the end of stored samples of the preceding frame;
• a resampling module, which obtains a first resampled segment by application to the first segment of at least one resampling filter resampling from the first frequency to the output frequency;
• a module, which determines a second signal segment by addition of a second predetermined number of samples set at zero at the start of samples of the current frame;
• a resampling module, which obtains a second resampled segment by application to the second segment of at least one resampling filter resampling from the second frequency to the output frequency;
• a combination module, which combines the overlapping part of the first and second resampled segments to obtain at least a part of the current resampled frame.

A non-transitory processor-readable storage medium, on which is stored a computer program comprising code instructions for executing a resampling method when the instructions are executed by a processor of a resampling device, wherein the instructions configure the resampling device to perform acts of:

• resampling an audio frequency signal at an output sampling frequency, for a current signal frame, wherein the preceding frame is sampled at a first sampling frequency different from a second sampling frequency of the current frame, and wherein resampling comprises:
• determining a first signal segment by addition of a first predetermined number of samples set at zero at the end of stored samples of the preceding frame;
• obtaining a first resampled segment by application to the first segment of at least one resampling filter resampling from the first frequency to the output frequency;
• determining a second signal segment by addition of a second predetermined number of samples set at zero at the start of samples of the current frame;
• obtaining a second resampled segment by application to the second segment of at least one resampling filter resampling from the second frequency to the output frequency;
• and
• combining an overlapping part of the first and second resampled segments to obtain at least a part of the current resampled frame.