发明名称 |
AUDIO FILTERS UTILIZING SINE FUNCTIONS |
摘要 |
A method of digitally filtering an audio signal using an adjusted audio filter. The adjusted audio filter is represented by an impulse response including a waveform in its time domain represented by a sine function of absolute values. A composite audio filter is derived from two adjusted audio filters although any number of filters may be used. The composite audio filter generally includes a bank of the filters which together define a frequency bandwidth representative of the audio signal or spectrum to be filtered. Also a bandpass filter is constructed by combining frequency responses for sine components of absolute values integrated from 0 to bpf and sine components of absolute values integrated from 1/bpf to 0. The frequency response may be the sum of the frequency responses for each of the filters used to create the composite bandpass filter. |
申请公布号 |
US2016037252(A1) |
申请公布日期 |
2016.02.04 |
申请号 |
US201414780367 |
申请日期 |
2014.03.26 |
申请人 |
BARRATT Lachlan Paul |
发明人 |
BARRATT Lachlan Paul |
分类号 |
H04R1/22;G06F3/16;H04R3/04 |
主分类号 |
H04R1/22 |
代理机构 |
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代理人 |
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主权项 |
1. A method of digitally filtering an audio signal, said method comprising the steps of:
providing an adjusted audio filter represented by an impulse response including a waveform in its time domain represented by a sine function of absolute values; filtering the audio signal using the adjusted audio filter. |
地址 |
US |