发明名称 |
METHODS, DEVICES AND COMPUTER PROGRAM PRODUCTS FOR COMPRESSING AN AUDIO SIGNAL |
摘要 |
A method of compressing an audio signal can include accepting input samples of the audio signal wherein the input samples include non-zero input samples. A logarithm of each of the non-zero input samples of the audio signal can be calculated. Compressed output samples for each non-zero input sample can then be determined based on the logarithm of each respective non-zero input sample. Preferably, a linear relationship may exist between logarithms of the non-zero input samples and logarithms of the corresponding compressed output samples. A logarithm of each compressed output sample, corresponding to a non-zero input sample, may be based on a product of a logarithm of each corresponding non-zero input sample and a compression factor. Related devices and computer program products are also discussed. |
申请公布号 |
WO02060053(A3) |
申请公布日期 |
2003.05.15 |
申请号 |
WO2001US49166 |
申请日期 |
2001.12.19 |
申请人 |
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL);ROMESBURG, ERIC, DOUGLAS |
发明人 |
ROMESBURG, ERIC, DOUGLAS |
分类号 |
H03G7/00 |
主分类号 |
H03G7/00 |
代理机构 |
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