High resolution audio coding

An electronic device, comprising:

• a non-transitory memory storage having instructions stored thereon;
• and
• one or more hardware processors in communication with the memory storage, wherein the one or more hardware processors execute the instructions to:
• receive an audio signal comprising one or more subband signals;
• generate a residual signal of at least one of the one or more subband signals based on the at least one of the one or more subband signals;
• determine that the at least one of the one or more subband signals is a high pitch signal;
• and
• in response to determining that the at least one of the one or more subband signals is the high pitch signal, perform weighting on the residual signal of the at least one of the one or more subband signal to generate a weighted residual signal.

A non-transitory computer-readable medium storing computer instructions for audio coding, that when executed by one or more hardware processors, cause the one or more hardware processors to perform operations comprising:

• receiving an audio signal comprising one or more subband signals;
• generating a residual signal of at least one of the one or more subband signals based on the at least one of the one or more subband signals;
• determining that the at least one of the one or more subband signals is a high pitch signal;
• and
• in response to determining that the at least one of the one or more subband signals is the high pitch signal, performing weighting on the residual signal of the at least one of the one or more subband signal to generate a weighted residual signal.