| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| |
| #ifndef GENERATE_SINUSOID_H |
| #define GENERATE_SINUSOID_H |
| |
| /* Return a sinusoid of frequency freq Hz and amplitude ampl in output |
| of length numOutput. If ramp > 0.0, taper the ends of the signal |
| with a half-raised-cosine function. It is up to the caller to |
| delete[] output. If this call fails due to unreasonable arguments, |
| numOutput will be zero, and output will be NULL. Note that the |
| duration of the up/down ramps will be within the specified |
| duration. Note that if amplitude is specified outside of the |
| numerical range of int16, the signal will be clipped at +- 32767. */ |
| void generateSinusoid(float freq, float duration, float sampleRate, |
| float amplitude, float ramp, |
| int* numOutput, short** output); |
| |
| #endif // GENERATE_SINUSOID_H |
| |
