Device and method for synchronising additional data and base data

A technology of basic data and additional data, applied in the direction of measurement device, data recording, carrier index/addressing/timing/synchronization, etc., can solve problems such as no time synchronization technology

Active Publication Date: 2007-08-29
FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is also no generally accepted time synchronization technique for "enhancing" commonly

Method used

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  • Device and method for synchronising additional data and base data
  • Device and method for synchronising additional data and base data
  • Device and method for synchronising additional data and base data

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Embodiment Construction

[0046] Before referring to the inventive device for synchronizing additional and basic data according to FIG. 1 , first, a fingerprint pointing to an instant or instants of data from which the fingerprint is derived, ie a fingerprint with an internal time stamp, is described according to FIG. 3 . In other words, the fingerprint 30 in FIG. 3 provides a time stamp of the audio signal 31 in FIG. 3 from which it was derived. Therefore, the temporal structure of the audio signal 31 also coincides with the temporal structure of the fingerprint 30 . The time course of the fingerprint 30 thus corresponds to the time course of the audio signal 31 .

[0047] In the example shown in FIG. 3 , the audio signal 31 comprises a sequence of time segments 1, 2, 3, . . . 7 . From each time period, individual sub-fingerprints SFPi are calculated by known fingerprinting methods. Thus, sub-fingerprint SFP1 corresponds to segment 1 of the audio signal and sub-fingerprint SFP6 corresponds to segmen...

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Abstract

Stereo data may be produced by a test finger especially a record-player stylus scanning a solid shape. Stylus pressure is measured and an ideal stereo signal is produced (10). A second step (11) combines stylus pressure (TEST-FINGERABDRUCK) with a real stereo reference signal (REFERENZDATEN). Reference time point information (REFERENZZEITPUNCT- INFORMATION) is combined with base data (BASISDATEN) and additional data (ZUSATZDATEN) in a third step (12). Manipulated data (MANIPULIERTE DATEN) is fed to a fourth step (13) for production of audio output (5.1-SOUND).

Description

technical field [0001] The present invention relates to multimedia data processing, and in particular to time-synchronously appending additional audio information to audio elementary data. Background technique [0002] Currently developed technologies or technologies that will be developed in the future can store audio signals or video signals more and more efficiently, and also enhance audio-visual pleasure through extension, such as sampling multi-channel technology. This extension can be documented in a new file format and made available to the user together with audio elementary data, eg mono or stereo audio signals. For example, the extended data may be additional multi-channel information. This means that both audio base data and extension data are contained within a common data stream or file. [0003] At the same time, however, it is also of interest that users who have already processed the stereo version of the audio signal get only augmentations, ie multi-channe...

Claims

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Application Information

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IPC IPC(8): G01L19/00H04S3/00G11B27/00G10L19/00G10L19/008
CPCH04H20/89G10L19/008G11B27/031G11B2220/2545G11B27/105H04H20/28G11B27/10
Inventor 于尔根·赫勒奥立弗·赫尔穆特安德列亚斯·赫尔蒂斯特凡·盖尔斯贝格
Owner FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV
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