Methods for phase ECU F0 interpolation split and related controller
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorMartin Sehlstedt
Life of this patent
Estimating the term…
Abstract
Controlling a concealment method for a lost audio frame associated with a received audio signal is provided. At least one bin vector of a spectral representation for at least one tone is obtained, wherein the at least one bin vector includes three consecutive bin values for the at least one tone. Whether each of the three consecutive bin values has a complex value or a real value is determined. Responsive to the determination, the three consecutive bin values are processed to estimate a frequency of the at least one tone based on whether each bin value has a complex value or a real value.
Claims20
A method for controlling a concealment method for a lost audio frame associated with a received audio signal, the method comprising:
- obtaining at least one bin vector of a spectral representation for at least one tone, wherein the at least one bin vector includes three consecutive bin values for the at least one tone;
- and
- responsive to whether each of the three consecutive bin values has a complex value or a real value, selecting an interpolation method to estimate a frequency of the at least one tone using the three consecutive bin values.
An apparatus for controlling a concealment method for a lost audio frame associated with a received audio signal, the apparatus comprising:
- processing circuitry;
- and
- memory coupled with the processing circuitry, wherein the memory includes instructions that when executed by the processing circuitry causes the apparatus to perform operations comprising:
- obtaining at least one bin vector of a spectral representation for at least one tone, wherein the at least one bin vector includes three consecutive bin values for the at least one tone;
- and
- responsive to whether each of the three consecutive bin values has a complex value or a real value, selecting an interpolation method to estimate a frequency of the at least one tone using the three consecutive bin values.
A non-transitory computer readable medium having program code to be executed by at least one processor of a decoder for controlling a concealment method for a lost audio frame associated with a received audio signal, whereby execution of the program code causes the decoder to perform operations comprising:
- obtaining at least one bin vector of a spectral representation for at least one tone, wherein the at least one bin vector includes three consecutive bin values for the at least one tone;
- and
- responsive to whether each of the three consecutive bin values has a complex value or a real value, selecting an interpolation method to estimate a frequency of the at least one tone using the three consecutive bin values.
Dependencies are inferred from the claim text.