4) Test resultsĪs per the specification, there are two quality levels – Standard and Premium which are defined based on minimal and average 3QUEST values of each use case. In order to get audio files with Krisp processing independent of the audio pipeline, we’ve used Krisp Test Noise Cancellation. AGC was turned ON for each of the clients.
#KRISP BACKGROUND NOISE PC#
3-2-1) Noises for Headsetsįor all the apps (except Krisp), we’ve made a call with the app and captured sending signal recorded from DUT on the Reference PC and used that as the processed file for 3QUEST evaluations. Per MicrosoftTeams specification the noise types depend on the device type. Personal Speakerphone: HP Firefly 15 G8 built-in Mic.The following devices have been used for the testing. They also have the capability to design complex acoustic and audio systems in all kinds of products like mobile phones, loudspeakers, and headsets. Their Audio and Acoustics labs are capable to measure sound and vibrations and do various acoustic simulations. They provide access to their Anechoic and ETSI Rooms equipped with Head and Torso Simulator, Acoustic Simulations, and Field Measurements system that allows performing tests according to global standards. SigmaConnectivity is a Swedish global tech-house that offers a wide range of design, testing, and measuring services for Audio products. The test conforms with MicrosoftTeams specification v4 chapter 4.4.1 Send Path – Send Quality In The Presence of Ambient Noise.For the sake of fairness and neutrality, we have collaborated with a 3rd party company, SigmaConnectivity Lab to develop the testing environment.The goal of the test is to have objective comparative evaluations of Krisp standalone SDK and top competitors in the market – Zoom, Teams, Meet, Webex.