基本信息:
- 专利标题： 音頻編碼器及解碼器使用具全頻段間隙填充之頻域處理器及時域處理器之音頻編碼器及解碼器
- 专利标题（英）：Audio encoder and decoder using a frequency domain processor with full-band gap filling and a time domain processor
- 专利标题（中）：音频编码器及译码器使用具全频段间隙填充之频域处理器及时域处理器之音频编码器及译码器
- 申请号：TW104123735 申请日：2015-07-22
- 公开(公告)号：TW201610986A 公开(公告)日：2016-03-16
- 发明人： 帝斯奇 薩斯洽 , DISCH, SASCHA , 狄亞茲 馬汀 , DIETZ, MARTIN , 木翠斯 馬庫斯 , MULTRUS, MARKUS , 夫杰斯 貴勞美 , FUCHS, GUILLAUME , 拉維里 艾曼紐 , RAVELLI, EMMANUEL , 紐新傑 曼薩斯 , NEUSINGER, MATTHIAS , 斯奇乃爾 馬庫斯 , SCHNELL, MARKUS , 史屈博特 班傑明 , SCHUBERT, BENJAMIN , 吉爾 鮑耐德 , GRILL, BERNHARD
- 申请人： 弗勞恩霍夫爾協會 , FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E. V.
- 专利权人： 弗勞恩霍夫爾協會,FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E. V.
- 当前专利权人： 弗勞恩霍夫爾協會,FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E. V.
- 代理人： 邱珍元
- 优先权： 14178817.4 20140728
- 主分类号： G10L19/02
- IPC分类号： G10L19/02 ; G10L19/025 ; G10L21/038
An audio encoder for encoding an audio signal, comprises: a first encoding processor (600) for encoding a first audio signal portion in a frequency domain, wherein the first encoding processor (600) comprises: a time frequency converter (602) for converting the first audio signal portion into a frequency domain representation having spectral lines up to a maximum frequency of the first audio signal portion; an analyzer (604) for analyzing the frequency domain representation up to the maximum frequency to determine first spectral portions to be encoded with a first spectral resolution and second spectral regions to be encoded with a second spectral resolution, the second spectral resolution being lower than the first spectral resolution; a spectral encoder (606) for encoding the first spectral portions with the first spectral resolution and for encoding the second spectral portions with the second spectral resolution; a second encoding processor (610) for encoding a second different audio signal portion in the time domain; a controller (620) configured for analyzing the audio signal and for determining, which portion of the audio signal is the first audio signal portion encoded in the frequency domain and which portion of the audio signal is the second audio signal portion encoded in the time domain; and an encoded signal former (630) for forming an encoded audio signal comprising a first encoded signal portion for the first audio signal portion and a second encoded signal portion for the second audio signal portion.
公开/授权文献:
- TWI570710B 音源編碼器、音源解碼器、編碼音源訊號的方法、解碼編碼音源訊號的方法及其電腦程式 公开/授权日：2017-02-11
信息查询:
EspacenetIPC结构图谱:
| G | 物理 |
| --G10 | 乐器；声学 |
| ----G10L | 语言分析或合成；语言识别 |
| ------G10L19/00 | 用于冗余度下降情形的语音分析—合成技术；语音编码或解码 |
| --------G10L19/02 | .利用频谱分析，例如变换声码器、子频带声码器 |