Receiver side noise reduction and speech enhancement for pstn callers

A tangible, non-transitory, computer-readable medium having computer-executable instructions stored thereon that, when executed by a processor on a computer, cause the computer to perform a method comprising:

• receiving, at a receiver, an audio codec stream;
• determining, by the receiver, a length of time associated with a look-ahead buffer of the audio codec stream;
• inputting, by the receiver, the audio codec stream into an audio enhancement model trained with one or more audio enhancements to cause the audio enhancement model to apply the one or more audio enhancements to the audio codec stream to generate an enhanced audio codec stream within the length of time associated with the look-ahead buffer of the audio codec stream;
• and
• outputting, by the receiver, the enhanced audio codec stream.

An apparatus, comprising:

• one or more network interfaces to communicate with a network;
• a processor coupled to the one or more network interfaces and configured to execute one or more processes;
• and
• a memory configured to store a process that is executable by the processor, the process, when executed, configured to:
• receive, as a receiver, an audio codec stream;
• determine, as the receiver, a length of time associated with a look-ahead buffer of the audio codec stream;
• input, as the receiver, the audio codec stream into an audio enhancement model trained with one or more audio enhancements to cause the audio enhancement model to apply the one or more audio enhancements to the audio codec stream to generate an enhanced audio codec stream within the length of time associated with the look-ahead buffer of the audio codec stream;
• and
• output, as the receiver, the enhanced audio codec stream.