Invention Application
- Patent Title: SYSTEMS AND METHODS FOR IMPLEMENTING EFFICIENT CROSS-FADING BETWEEN COMPRESSED AUDIO STREAMS
-
Application No.: US17522595Application Date: 2021-11-09
-
Publication No.: US20220328051A1Publication Date: 2022-10-13
- Inventor: Raymond Lowe , Mark Kalman , Deepen Sinha , Christopher Ward
- Applicant: Sirius XM Radio Inc.
- Applicant Address: US NY New York
- Assignee: Sirius XM Radio Inc.
- Current Assignee: Sirius XM Radio Inc.
- Current Assignee Address: US NY New York
- Main IPC: G10L19/00
- IPC: G10L19/00 ; G11B27/038 ; H04H60/04 ; H04H20/38 ; G11B27/031

Abstract:
Systems and methods are presented for efficient cross-fading of compressed domain information streams on a user/client device. Exemplary systems may provide cross-fade between AAC/Enhanced AAC Plus information streams, between MP3 information streams, or between information streams of unmatched formats. These systems are distinguished in that cross-fade is directly applied to compressed bitstreams so a single decode operation is performed on the resulting bitstream. Thus, a set of frames from each input stream associated with the time interval in which a cross fade is decoded, and combined and recoded with a cross fade or other effect now in the compressed bitstream. Once sent through the client device's decoder, the user hears the transitional effect. The only input data that is decoded and processed is that associated with the portion of each stream used the crossfade, blend or other interstitial, and thus the vast majority of input streams are left compressed.
Public/Granted literature
- US11961538B2 Systems and methods for implementing efficient cross-fading between compressed audio streams Public/Granted day:2024-04-16
Information query