Receive-side audio processing for calls in a web conferencing client

An apparatus, comprising:

• one or more network interfaces;
• 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 an audio signal from a sending device;
• detect a particular telephony audio cue present in the audio signal, wherein the particular telephony audio cue has similar characteristics as noise that is to be removed by a noise removal operation;
• preserve the particular telephony audio cue in the audio signal throughout the noise removal operation on the audio signal;
• and
• cause an enhanced audio signal to be produced in conjunction with the noise removal operation, wherein the enhanced audio signal includes the particular telephony audio cue to be delivered to a receiver device.

A tangible, non-transitory, computer-readable medium storing program instructions that cause a device to execute a process comprising:

• receiving an audio signal from a sending device;
• detecting a particular telephony audio cue present in the audio signal, wherein the particular telephony audio cue has similar characteristics of noise that is to be removed by a noise removal operation;
• preserving the particular telephony audio cue in the audio signal throughout the noise removal operation on the audio signal;
• and
• causing an enhanced audio signal to be produced in conjunction with the noise removal operation, wherein the enhanced audio signal includes the particular telephony audio cue to be delivered to a receiver device.