| function y = stdlpf(x, fu, fs) |
| |
| %% y = stdhpf(x, fu, fs) |
| % |
| % Standard high-pass filter |
| % |
| % Input |
| % x - input signal |
| % fu - upper band-edge frequency |
| % fs - sample rate |
| % |
| % Output |
| % y - filtered signal |
| % |
| % Reference AES17 5.2.5 |
| |
| %% |
| % Copyright (c) 2017, Intel Corporation |
| % All rights reserved. |
| % |
| % Redistribution and use in source and binary forms, with or without |
| % modification, are permitted provided that the following conditions are met: |
| % * Redistributions of source code must retain the above copyright |
| % notice, this list of conditions and the following disclaimer. |
| % * Redistributions in binary form must reproduce the above copyright |
| % notice, this list of conditions and the following disclaimer in the |
| % documentation and/or other materials provided with the distribution. |
| % * Neither the name of the Intel Corporation nor the |
| % names of its contributors may be used to endorse or promote products |
| % derived from this software without specific prior written permission. |
| % |
| % THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| % AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| % IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| % ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| % LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| % CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| % SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| % INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| % CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| % ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| % POSSIBILITY OF SUCH DAMAGE. |
| % |
| % Author: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com> |
| % |
| |
| %% Design filter |
| b = stdlpf_get(fu, fs); |
| |
| %% Filter |
| y = filter(b, 1, x); |
| |
| |
| end |