| % | |
| % Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. | |
| % | |
| % Use of this source code is governed by a BSD-style license | |
| % that can be found in the LICENSE file in the root of the source | |
| % tree. An additional intellectual property rights grant can be found | |
| % in the file PATENTS. All contributing project authors may | |
| % be found in the AUTHORS file in the root of the source tree. | |
| % | |
| function [x, t] = readPCM(file, fs) | |
| %[x, t] = readPCM(file, fs) | |
| % | |
| %Reads a signal from a PCM file. | |
| % | |
| %x: The read signal after normalization. | |
| %t: The respective time vector. | |
| % | |
| %file: The PCM file where the signal is stored in int16 format. | |
| %fs: The signal sample rate in Hertz. | |
| fid = fopen(file); | |
| x = fread(fid, inf, 'int16'); | |
| fclose(fid); | |
| x = x - mean(x); | |
| x = x / max(abs(x)); | |
| t = 0:(1 / fs):((length(x) - 1) / fs); |