发明名称 |
Multi-resolution switched audio encoding/decoding scheme |
摘要 |
An audio encoder for encoding an audio signal has a first coding branch, the first coding branch comprising a first converter for converting a signal from a time domain into a frequency domain. Furthermore, the audio encoder has a second coding branch comprising a second time/frequency converter. Additionally, a signal analyzer for analyzing the audio signal is provided. The signal analyzer, on the hand, determines whether an audio portion is effective in the encoder output signal as a first encoded signal from the first encoding branch or as a second encoded signal from a second encoding branch. On the other hand, the signal analyzer determines a time/frequency resolution to be applied by the converters when generating the encoded signals. An output interface includes, in addition to the first encoded signal and the second encoded signal, a resolution information identifying the resolution used by the first time/frequency converter and used by the second time/frequency converter.
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申请公布号 |
US8447620(B2) |
申请公布日期 |
2013.05.21 |
申请号 |
US201113081223 |
申请日期 |
2011.04.06 |
申请人 |
NEUENDORF MAX;BAYER STEFAN;LECOMTE JEREMIE;FUCHS GUILLAUME;ROBILLIARD JULIEN;RETTELBACH NIKOLAUS;NAGEL FREDERIK;GEIGER RALF;MULTRUS MARKUS;GRILL BERNHARD;GOURNAY PHILIPPE;SALAMI REDWAN;FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.;VOICEAGE CORPORATION |
发明人 |
NEUENDORF MAX;BAYER STEFAN;LECOMTE JEREMIE;FUCHS GUILLAUME;ROBILLIARD JULIEN;RETTELBACH NIKOLAUS;NAGEL FREDERIK;GEIGER RALF;MULTRUS MARKUS;GRILL BERNHARD;GOURNAY PHILIPPE;SALAMI REDWAN |
分类号 |
G10L19/008;G10L19/00;G10L19/02;G10L19/16;G10L19/18 |
主分类号 |
G10L19/008 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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