发明名称 |
Devices, Methods and Computer Program Products for Controlling Loudness |
摘要 |
A method by an electronic device for controlling a frequency response of audio output includes: receiving an audio signal at the device; estimating a sound pressure level of the audio signal based on one or more attributes or settings of the electronic device and/or the audio signal; generating values of an adaptive loudness control curve along a range of frequencies, wherein the adaptive loudness control curve is generated based on a difference between values of an equal loudness curve at the estimated sound pressure level along and values of an equal loudness curve at a reference sound pressure level; filtering the audio signal using values of the adaptive loudness control curve; and controlling output of the filtered audio signal as an audio output having substantially the same loudness along the range of frequencies. |
申请公布号 |
US2014321670(A1) |
申请公布日期 |
2014.10.30 |
申请号 |
US201313871260 |
申请日期 |
2013.04.26 |
申请人 |
SONY CORPORATION |
发明人 |
Nystrom Martin;Smailagic Sead |
分类号 |
H03G3/20 |
主分类号 |
H03G3/20 |
代理机构 |
|
代理人 |
|
主权项 |
1. A method by an electronic device for controlling a frequency response of audio output, the method comprising:
receiving an audio signal at the device; estimating a sound pressure level of the audio signal based on one or more attributes or settings of the electronic device and/or the audio signal; generating values of an adaptive loudness control curve along a range of frequencies, wherein the adaptive loudness control curve is generated based on a difference between values of an equal loudness curve at the estimated sound pressure level along the range of frequencies and values of an equal loudness curve at a reference sound pressure level along the range of frequencies; filtering the audio signal using values of the adaptive loudness control curve; and controlling output of the filtered audio signal as an audio output having substantially the same loudness along the range of frequencies. |
地址 |
Tokyo JP |