发明名称 |
REKONSTRUKTION DES SPEKTRUMS EINES AUDIOSIGNALS MIT UNVOLLSTÄNDIGEM SPEKTRUM AUF GRUNDLAGE VON FREQUENZUMSETZUNG |
摘要 |
A method for generating a reconstructed signal comprises: receiving a signal containing data representing a baseband signal derived from an audio signal and an estimated spectral envelope; obtaining from the data a frequency-domain representation of the baseband signal, the frequency-domain representation comprising baseband spectral components; obtaining a regenerated signal comprising regenerated spectral components by copying into individual subbands the lowest-frequency baseband spectral components to a lower edge of a respective subband and continuing through the baseband spectral components in a circular manner to complete a translation for that respective subband; and obtaining a time-domain representation of the reconstructed signal corresponding to a combination of the baseband spectral components, the regenerated spectral components and the estimated spectral envelope. |
申请公布号 |
AT511180(T) |
申请公布日期 |
2011.06.15 |
申请号 |
AT20100155626T |
申请日期 |
2003.03.21 |
申请人 |
DOLBY LABORATORIES LICENSING CORPORATION |
发明人 |
TRUMAN, MICHAEL;VINTON, MARK |
分类号 |
G10L19/02;G10L21/02 |
主分类号 |
G10L19/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|