System and method for seamless switching of compressed audio streams
First Claim
Patent Images
1. A method of preparing a plurality of digital audio fragments to allow switching between at least one source fragment and at least one target fragment said method comprising:
- aligning an end of said at least one source fragment with a beginning of said at least one target fragment, for all possible valid combinations of said at least one source fragment and said at least one target fragment;
wherein said at least one source fragment is aligned to be a length that is an exact multiple of a predetermined number.
4 Assignments
0 Petitions
Accused Products
Abstract
A system and method for seamless switching and concatenation of compressed audio streams in Internet, Digital Radio, Digital Television, DVD, storage, and other applications. The technology allows switching between streams at pre-determined points without the introduction of audible artifacts. It can be used for the personalization messages such as advertisements, news systems and other.
-
Citations
23 Claims
-
1. A method of preparing a plurality of digital audio fragments to allow switching between at least one source fragment and at least one target fragment said method comprising:
aligning an end of said at least one source fragment with a beginning of said at least one target fragment, for all possible valid combinations of said at least one source fragment and said at least one target fragment;
wherein said at least one source fragment is aligned to be a length that is an exact multiple of a predetermined number.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
16. A system for preparing a plurality of digital audio fragments for transmission to allow a switching device to switch between at least one source fragment and at least one target fragment;
- said system comprising;
an audio aligner module, coupled to a source of said plurality of audio fragments, to align beginning and ends of said plurality of audio fragments to selected times based on an exact multiple of a predetermined number;
an audio compression module, coupled to said audio aligner module, to compress said plurality of audio fragments as a sequence of frames, wherein each frame comprises a sequence of audio samples; and
wherein a length of said frame is said predetermined number. - View Dependent Claims (17, 18, 19)
- said system comprising;
-
20. A switching apparatus, to switch between a plurality of audio fragments, wherein said audio fragments are prepared so that so that an end of said at least one source fragment is aligned with a beginning of said at least one target fragment and wherein said least one source fragment is aligned to be a length that is an exact multiple of a predetermined number;
- wherein said switch apparatus switches between at least one source fragment and at least one target fragment at said alignment.
- View Dependent Claims (21, 22, 23)
Specification