Transcoding method and system between CELP-based speech codes with externally provided status

An apparatus for processing CELP-based frames, the apparatus comprising:

• a first module configured to determine one or more CELP parameters of a source codec;
• a second module coupled to the first module, wherein the second module is configured to interpolate between the one or more CELP parameters of the source codec characterized by a first sampling rate and one or more CELP parameters of a destination codec characterized by a second sampling rate different from the first sampling rate, wherein the one or more CELP parameters of the source codec and the one or more CELP parameters of the destination codec are selected from a group consisting of:
• a frame size and a subframe size;
• a third module coupled to the second module, wherein the third module is configured to map the one or more CELP parameters of the source codec to the one or more CELP parameters of the destination codec;
• a fourth module coupled to the third module, wherein the fourth module is configured to form at least one destination output CELP frame in response to the one or more CELP parameters of the destination codec;
• and
• a controller coupled to at least the first module, the second module, the third module, and the fourth module, the controller being adapted to:
• oversee an operation of one or more of the modules;
• receive instructions from one or more external applications, and
• provide a status information to one or more of the external applications.