Since Chrome has the PCM data it‘s writing to the speaker, it can use that to remove similar sounds from a mic. That‘s my guess. There‘s a similar question on

Since Chrome has the PCM data it‘s writing to the speaker, it can use that to remove similar sounds from a mic. That‘s my guess. There‘s a similar question on SO: https://stackoverflow.com/questions/21795944/remove-known-audio-output-from-microphone-input https://stackoverflow.com/questions/21795944/remove-known-au...