diff options
Diffstat (limited to 'media/libeffects/lvm/lib/Eq/src/LVEQNB_Coeffs.h')
| -rwxr-xr-x | media/libeffects/lvm/lib/Eq/src/LVEQNB_Coeffs.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/media/libeffects/lvm/lib/Eq/src/LVEQNB_Coeffs.h b/media/libeffects/lvm/lib/Eq/src/LVEQNB_Coeffs.h new file mode 100755 index 0000000..87d7145 --- /dev/null +++ b/media/libeffects/lvm/lib/Eq/src/LVEQNB_Coeffs.h @@ -0,0 +1,106 @@ +/* + * Copyright (C) 2004-2010 NXP Software + * 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 __LVEQNB_COEFFS_H__ +#define __LVEQNB_COEFFS_H__ + + +/************************************************************************************/ +/* */ +/* Gain table for (10^(Gain/20) - 1) */ +/* */ +/************************************************************************************/ + +#define LVEQNB_GAINSHIFT 11 /* As a power of 2 */ +#define LVEQNB_Gain_Neg15_dB -1684 /* Floating point value -0.822172 */ +#define LVEQNB_Gain_Neg14_dB -1639 /* Floating point value -0.800474 */ +#define LVEQNB_Gain_Neg13_dB -1590 /* Floating point value -0.776128 */ +#define LVEQNB_Gain_Neg12_dB -1534 /* Floating point value -0.748811 */ +#define LVEQNB_Gain_Neg11_dB -1471 /* Floating point value -0.718162 */ +#define LVEQNB_Gain_Neg10_dB -1400 /* Floating point value -0.683772 */ +#define LVEQNB_Gain_Neg9_dB -1321 /* Floating point value -0.645187 */ +#define LVEQNB_Gain_Neg8_dB -1233 /* Floating point value -0.601893 */ +#define LVEQNB_Gain_Neg7_dB -1133 /* Floating point value -0.553316 */ +#define LVEQNB_Gain_Neg6_dB -1022 /* Floating point value -0.498813 */ +#define LVEQNB_Gain_Neg5_dB -896 /* Floating point value -0.437659 */ +#define LVEQNB_Gain_Neg4_dB -756 /* Floating point value -0.369043 */ +#define LVEQNB_Gain_Neg3_dB -598 /* Floating point value -0.292054 */ +#define LVEQNB_Gain_Neg2_dB -421 /* Floating point value -0.205672 */ +#define LVEQNB_Gain_Neg1_dB -223 /* Floating point value -0.108749 */ +#define LVEQNB_Gain_0_dB 0 /* Floating point value 0.000000 */ +#define LVEQNB_Gain_1_dB 250 /* Floating point value 0.122018 */ +#define LVEQNB_Gain_2_dB 530 /* Floating point value 0.258925 */ +#define LVEQNB_Gain_3_dB 845 /* Floating point value 0.412538 */ +#define LVEQNB_Gain_4_dB 1198 /* Floating point value 0.584893 */ +#define LVEQNB_Gain_5_dB 1594 /* Floating point value 0.778279 */ +#define LVEQNB_Gain_6_dB 2038 /* Floating point value 0.995262 */ +#define LVEQNB_Gain_7_dB 2537 /* Floating point value 1.238721 */ +#define LVEQNB_Gain_8_dB 3096 /* Floating point value 1.511886 */ +#define LVEQNB_Gain_9_dB 3724 /* Floating point value 1.818383 */ +#define LVEQNB_Gain_10_dB 4428 /* Floating point value 2.162278 */ +#define LVEQNB_Gain_11_dB 5219 /* Floating point value 2.548134 */ +#define LVEQNB_Gain_12_dB 6105 /* Floating point value 2.981072 */ +#define LVEQNB_Gain_13_dB 7100 /* Floating point value 3.466836 */ +#define LVEQNB_Gain_14_dB 8216 /* Floating point value 4.011872 */ +#define LVEQNB_Gain_15_dB 9469 /* Floating point value 4.623413 */ + + +/************************************************************************************/ +/* */ +/* Frequency table for 2*Pi/Fs */ +/* */ +/************************************************************************************/ + +#define LVEQNB_FREQSHIFT 25 /* As a power of 2 */ +#define LVEQNB_2PiOn_8000 26354 /* Floating point value 0.000785 */ +#define LVEQNB_2PiOn_11025 19123 /* Floating point value 0.000570 */ +#define LVEQNB_2PiOn_12000 17569 /* Floating point value 0.000524 */ +#define LVEQNB_2PiOn_16000 13177 /* Floating point value 0.000393 */ +#define LVEQNB_2PiOn_22050 9561 /* Floating point value 0.000285 */ +#define LVEQNB_2PiOn_24000 8785 /* Floating point value 0.000262 */ +#define LVEQNB_2PiOn_32000 6588 /* Floating point value 0.000196 */ +#define LVEQNB_2PiOn_44100 4781 /* Floating point value 0.000142 */ +#define LVEQNB_2PiOn_48000 4392 /* Floating point value 0.000131 */ + + +/************************************************************************************/ +/* */ +/* 50D table for 50 / ( 1 + Gain ) */ +/* */ +/************************************************************************************/ + +#define LVEQNB_100DSHIFT 5 /* As a power of 2 */ +#define LVEQNB_100D_Neg15_dB 17995 /* Floating point value 5.623413 */ +#define LVEQNB_100D_Neg14_dB 16038 /* Floating point value 5.011872 */ +#define LVEQNB_100D_Neg13_dB 14294 /* Floating point value 4.466836 */ +#define LVEQNB_100D_Neg12_dB 12739 /* Floating point value 3.981072 */ +#define LVEQNB_100D_Neg11_dB 11354 /* Floating point value 3.548134 */ +#define LVEQNB_100D_Neg10_dB 10119 /* Floating point value 3.162278 */ +#define LVEQNB_100D_Neg9_dB 9019 /* Floating point value 2.818383 */ +#define LVEQNB_100D_Neg8_dB 8038 /* Floating point value 2.511886 */ +#define LVEQNB_100D_Neg7_dB 7164 /* Floating point value 2.238721 */ +#define LVEQNB_100D_Neg6_dB 6385 /* Floating point value 1.995262 */ +#define LVEQNB_100D_Neg5_dB 5690 /* Floating point value 1.778279 */ +#define LVEQNB_100D_Neg4_dB 5072 /* Floating point value 1.584893 */ +#define LVEQNB_100D_Neg3_dB 4520 /* Floating point value 1.412538 */ +#define LVEQNB_100D_Neg2_dB 4029 /* Floating point value 1.258925 */ +#define LVEQNB_100D_Neg1_dB 3590 /* Floating point value 1.122018 */ +#define LVEQNB_100D_0_dB 3200 /* Floating point value 1.000000 */ + + +#endif |