发明名称 |
APPARATUS AND METHOD FOR AUDIO ENCODING AND DECODING EMPLOYING SINUSOIDAL SUBSTITUTION |
摘要 |
<p>An apparatus for generating an audio output signal based on an encoded audio signal spectrum has a processing unit, a pseudo coefficients determiner, a spectrum modification unit, a spectrum-time conversion unit, a controllable oscillator and a mixer. The pseudo coefficients determiner is configured to determine pseudo coefficients of the decoded audio signal spectrum. The spectrum modification unit is configured to set the pseudo coefficients to a predefined value to acquire a modified audio signal spectrum. The spectrum-time conversion unit is configured to convert the modified audio signal spectrum to a time-domain. The controllable oscillator is configured to generate a time-domain oscillator signal and is controlled by the spectral location and the spectral value of at least one of the pseudo coefficients. The mixer is configured to mix the time-domain conversion signal and the time-domain oscillator signal.</p> |
申请公布号 |
HK1192640(A1) |
申请公布日期 |
2015.11.20 |
申请号 |
HK20140105797 |
申请日期 |
2014.06.18 |
申请人 |
FRAUNHOFER GESELLSCHAFT ZUR FRDERUNG DER ANGEWANDT |
发明人 |
DISCH, SASCHA;SCHUBERT, BENJAMIN;GEIGER, RALF;DIETZ, MARTIN |
分类号 |
G10L |
主分类号 |
G10L |
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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