Microsoft Technology Licensing, LLC

Quinn Damerell

Stefan Francis Slivinski

Joseph Wheeler

Nicholas Jie Fang

Tyler Paul Esselstrom

Robert H Smith

Michael Lacher

Gerald Albert Pogue, Jr

Dylan Keith Garrett

Daniel Diniz Niemeyer

Dharmanshu Kamra

Ivan Mladenov

Riccardo Gerosa

Ruth Anne Zschoche

Karthik Nallapeta Subramanya

Bryan Grounds

Randy Huynh

Systems, methods, and software technology for optimizing the streaming video to end points while maintaining low latency. In an implementation, a streaming service receives video data for distribution to a plurality of end points. For each end point, the service streams the video data at a given bit rate to the end point. While the video is being streamed, the service sends test data to the end point at an additional bit rate. The service also increases the additional bit rate of the test data until a threshold decline in quality of the video data occurs or until a total bit rate of the video data and the test data reaches a next available bit rate for the video data. The service conditionally switches from the given bit rate to the next available bit rate if the total bit rate has reached the next available bit rate.

Increasing video bit rates while maintaining video quality

A method for low-latency streaming of audio and video via a mobile computing device to facilitate a high-quality, real-time interactive streaming experience. The method includes receiving an application audio stream generated by execution of an application program, an application video stream generated by execution of the application program, a microphone audio stream, and a camera video stream. The application audio stream and the microphone audio stream are mixed to produce a mixed audio stream. The application video stream and the camera video stream are composited to produce a composited video stream. The mixed audio stream is encoded to produce an encoded audio stream, and the composited video stream is encoded to produce an encoded video stream. The encoded audio and video streams are packaged into one or more streaming packets, and output, to a remote computing device.

Low-latency mobile device audiovisual streaming

Display screen with graphical user interface

In one example, a client device interacting with a streaming application server may synchronize an audio stream to a corresponding video stream. The client streaming device may have an audio channel to receive a current audio packet of an audio stream from a streaming application server. The client streaming device may have a video channel to receive a current video packet of a video stream from the streaming application server. The client streaming device may execute a media synchronization module to synchronize the audio stream to the video stream by measuring a video display time change for the video stream describing a video delay between generating video data at the streaming application server and displaying the video data at the streaming client device to a user. The client streaming device may execute an audio adjustment module to adjust an audio presentation time for the audio stream indicating when a subsequent audio packet is played to the user based on the video display time change.

Media synchronization for real-time streaming

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Redmond, WA, United States of America

Quinn Damerell