1 /* 2 * Copyright (C) 2011, Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 */ 24 25 [ 26 Conditional=WEB_AUDIO 27 ] interface BiquadFilterNode : AudioNode { 28 // Filter type. 29 const unsigned short LOWPASS = 0; 30 const unsigned short HIGHPASS = 1; 31 const unsigned short BANDPASS = 2; 32 const unsigned short LOWSHELF = 3; 33 const unsigned short HIGHSHELF = 4; 34 const unsigned short PEAKING = 5; 35 const unsigned short NOTCH = 6; 36 const unsigned short ALLPASS = 7; 37 38 [CustomSetter] attribute DOMString type; 39 40 readonly attribute AudioParam frequency; // in Hertz 41 readonly attribute AudioParam detune; // in Cents 42 readonly attribute AudioParam Q; // Quality factor 43 readonly attribute AudioParam gain; // in Decibels 44 45 void getFrequencyResponse(Float32Array frequencyHz, 46 Float32Array magResponse, 47 Float32Array phaseResponse); 48 }; 49
