/* * 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. */ /************************************************************************************/ /* */ /* Includes */ /* */ /************************************************************************************/ #include "LVDBE.h" #include "LVDBE_Coeffs.h" /* Filter coefficients */ #include "LVDBE_Tables.h" #include "BIQUAD.h" /************************************************************************************/ /* */ /* Coefficients constant table */ /* */ /************************************************************************************/ /* * High Pass Filter Coefficient table */ const BQ_FLOAT_Coefs_t LVDBE_HPF_Table[] = { /* Coefficients for 55Hz centre frequency */ {HPF_Fs8000_Fc55_A2, /* 8kS/s coefficients */ HPF_Fs8000_Fc55_A1, HPF_Fs8000_Fc55_A0, -HPF_Fs8000_Fc55_B2, -HPF_Fs8000_Fc55_B1}, {HPF_Fs11025_Fc55_A2, /* 11kS/s coefficients */ HPF_Fs11025_Fc55_A1, HPF_Fs11025_Fc55_A0, -HPF_Fs11025_Fc55_B2, -HPF_Fs11025_Fc55_B1}, {HPF_Fs12000_Fc55_A2, /* 12kS/s coefficients */ HPF_Fs12000_Fc55_A1, HPF_Fs12000_Fc55_A0, -HPF_Fs12000_Fc55_B2, -HPF_Fs12000_Fc55_B1}, {HPF_Fs16000_Fc55_A2, /* 16kS/s coefficients */ HPF_Fs16000_Fc55_A1, HPF_Fs16000_Fc55_A0, -HPF_Fs16000_Fc55_B2, -HPF_Fs16000_Fc55_B1}, {HPF_Fs22050_Fc55_A2, /* 22kS/s coefficients */ HPF_Fs22050_Fc55_A1, HPF_Fs22050_Fc55_A0, -HPF_Fs22050_Fc55_B2, -HPF_Fs22050_Fc55_B1}, {HPF_Fs24000_Fc55_A2, /* 24kS/s coefficients */ HPF_Fs24000_Fc55_A1, HPF_Fs24000_Fc55_A0, -HPF_Fs24000_Fc55_B2, -HPF_Fs24000_Fc55_B1}, {HPF_Fs32000_Fc55_A2, /* 32kS/s coefficients */ HPF_Fs32000_Fc55_A1, HPF_Fs32000_Fc55_A0, -HPF_Fs32000_Fc55_B2, -HPF_Fs32000_Fc55_B1}, {HPF_Fs44100_Fc55_A2, /* 44kS/s coefficients */ HPF_Fs44100_Fc55_A1, HPF_Fs44100_Fc55_A0, -HPF_Fs44100_Fc55_B2, -HPF_Fs44100_Fc55_B1}, {HPF_Fs48000_Fc55_A2, /* 48kS/s coefficients */ HPF_Fs48000_Fc55_A1, HPF_Fs48000_Fc55_A0, -HPF_Fs48000_Fc55_B2, -HPF_Fs48000_Fc55_B1}, {HPF_Fs88200_Fc55_A2, /* 88kS/s coefficients */ HPF_Fs88200_Fc55_A1, HPF_Fs88200_Fc55_A0, -HPF_Fs88200_Fc55_B2, -HPF_Fs88200_Fc55_B1}, {HPF_Fs96000_Fc55_A2, /* 96kS/s coefficients */ HPF_Fs96000_Fc55_A1, HPF_Fs96000_Fc55_A0, -HPF_Fs96000_Fc55_B2, -HPF_Fs96000_Fc55_B1}, {HPF_Fs176400_Fc55_A2, /* 176kS/s coefficients */ HPF_Fs176400_Fc55_A1, HPF_Fs176400_Fc55_A0, -HPF_Fs176400_Fc55_B2, -HPF_Fs176400_Fc55_B1}, {HPF_Fs192000_Fc55_A2, /* 192kS/s coefficients */ HPF_Fs192000_Fc55_A1, HPF_Fs192000_Fc55_A0, -HPF_Fs192000_Fc55_B2, -HPF_Fs192000_Fc55_B1}, /* Coefficients for 66Hz centre frequency */ {HPF_Fs8000_Fc66_A2, /* 8kS/s coefficients */ HPF_Fs8000_Fc66_A1, HPF_Fs8000_Fc66_A0, -HPF_Fs8000_Fc66_B2, -HPF_Fs8000_Fc66_B1}, {HPF_Fs11025_Fc66_A2, /* 11kS/s coefficients */ HPF_Fs11025_Fc66_A1, HPF_Fs11025_Fc66_A0, -HPF_Fs11025_Fc66_B2, -HPF_Fs11025_Fc66_B1}, {HPF_Fs12000_Fc66_A2, /* 12kS/s coefficients */ HPF_Fs12000_Fc66_A1, HPF_Fs12000_Fc66_A0, -HPF_Fs12000_Fc66_B2, -HPF_Fs12000_Fc66_B1}, {HPF_Fs16000_Fc66_A2, /* 16kS/s coefficients */ HPF_Fs16000_Fc66_A1, HPF_Fs16000_Fc66_A0, -HPF_Fs16000_Fc66_B2, -HPF_Fs16000_Fc66_B1}, {HPF_Fs22050_Fc66_A2, /* 22kS/s coefficients */ HPF_Fs22050_Fc66_A1, HPF_Fs22050_Fc66_A0, -HPF_Fs22050_Fc66_B2, -HPF_Fs22050_Fc66_B1}, {HPF_Fs24000_Fc66_A2, /* 24kS/s coefficients */ HPF_Fs24000_Fc66_A1, HPF_Fs24000_Fc66_A0, -HPF_Fs24000_Fc66_B2, -HPF_Fs24000_Fc66_B1}, {HPF_Fs32000_Fc66_A2, /* 32kS/s coefficients */ HPF_Fs32000_Fc66_A1, HPF_Fs32000_Fc66_A0, -HPF_Fs32000_Fc66_B2, -HPF_Fs32000_Fc66_B1}, {HPF_Fs44100_Fc66_A2, /* 44kS/s coefficients */ HPF_Fs44100_Fc66_A1, HPF_Fs44100_Fc66_A0, -HPF_Fs44100_Fc66_B2, -HPF_Fs44100_Fc66_B1}, {HPF_Fs48000_Fc66_A2, /* 48kS/s coefficients */ HPF_Fs48000_Fc66_A1, HPF_Fs48000_Fc66_A0, -HPF_Fs48000_Fc66_B2, -HPF_Fs48000_Fc66_B1}, {HPF_Fs88200_Fc66_A2, /* 88kS/s coefficients */ HPF_Fs88200_Fc66_A1, HPF_Fs88200_Fc66_A0, -HPF_Fs88200_Fc66_B2, -HPF_Fs88200_Fc66_B1}, {HPF_Fs96000_Fc66_A2, /* 96kS/s coefficients */ HPF_Fs96000_Fc66_A1, HPF_Fs96000_Fc66_A0, -HPF_Fs96000_Fc66_B2, -HPF_Fs96000_Fc66_B1}, {HPF_Fs176400_Fc66_A2, /* 176kS/s coefficients */ HPF_Fs176400_Fc66_A1, HPF_Fs176400_Fc66_A0, -HPF_Fs176400_Fc66_B2, -HPF_Fs176400_Fc66_B1}, {HPF_Fs192000_Fc66_A2, /* 192kS/s coefficients */ HPF_Fs192000_Fc66_A1, HPF_Fs192000_Fc66_A0, -HPF_Fs192000_Fc66_B2, -HPF_Fs192000_Fc66_B1}, /* Coefficients for 78Hz centre frequency */ {HPF_Fs8000_Fc78_A2, /* 8kS/s coefficients */ HPF_Fs8000_Fc78_A1, HPF_Fs8000_Fc78_A0, -HPF_Fs8000_Fc78_B2, -HPF_Fs8000_Fc78_B1}, {HPF_Fs11025_Fc78_A2, /* 11kS/s coefficients */ HPF_Fs11025_Fc78_A1, HPF_Fs11025_Fc78_A0, -HPF_Fs11025_Fc78_B2, -HPF_Fs11025_Fc78_B1}, {HPF_Fs12000_Fc78_A2, /* 12kS/s coefficients */ HPF_Fs12000_Fc78_A1, HPF_Fs12000_Fc78_A0, -HPF_Fs12000_Fc78_B2, -HPF_Fs12000_Fc78_B1}, {HPF_Fs16000_Fc78_A2, /* 16kS/s coefficients */ HPF_Fs16000_Fc78_A1, HPF_Fs16000_Fc78_A0, -HPF_Fs16000_Fc78_B2, -HPF_Fs16000_Fc78_B1}, {HPF_Fs22050_Fc78_A2, /* 22kS/s coefficients */ HPF_Fs22050_Fc78_A1, HPF_Fs22050_Fc78_A0, -HPF_Fs22050_Fc78_B2, -HPF_Fs22050_Fc78_B1}, {HPF_Fs24000_Fc78_A2, /* 24kS/s coefficients */ HPF_Fs24000_Fc78_A1, HPF_Fs24000_Fc78_A0, -HPF_Fs24000_Fc78_B2, -HPF_Fs24000_Fc78_B1}, {HPF_Fs32000_Fc78_A2, /* 32kS/s coefficients */ HPF_Fs32000_Fc78_A1, HPF_Fs32000_Fc78_A0, -HPF_Fs32000_Fc78_B2, -HPF_Fs32000_Fc78_B1}, {HPF_Fs44100_Fc78_A2, /* 44kS/s coefficients */ HPF_Fs44100_Fc78_A1, HPF_Fs44100_Fc78_A0, -HPF_Fs44100_Fc78_B2, -HPF_Fs44100_Fc78_B1}, {HPF_Fs48000_Fc78_A2, /* 48kS/s coefficients */ HPF_Fs48000_Fc78_A1, HPF_Fs48000_Fc78_A0, -HPF_Fs48000_Fc78_B2, -HPF_Fs48000_Fc78_B1}, {HPF_Fs88200_Fc78_A2, /* 88kS/s coefficients */ HPF_Fs88200_Fc78_A1, HPF_Fs88200_Fc78_A0, -HPF_Fs88200_Fc78_B2, -HPF_Fs88200_Fc78_B1}, {HPF_Fs96000_Fc78_A2, /* 96kS/s coefficients */ HPF_Fs96000_Fc78_A1, HPF_Fs96000_Fc78_A0, -HPF_Fs96000_Fc78_B2, -HPF_Fs96000_Fc78_B1}, {HPF_Fs176400_Fc78_A2, /* 176kS/s coefficients */ HPF_Fs176400_Fc78_A1, HPF_Fs176400_Fc78_A0, -HPF_Fs176400_Fc78_B2, -HPF_Fs176400_Fc78_B1}, {HPF_Fs192000_Fc78_A2, /* 192kS/s coefficients */ HPF_Fs192000_Fc78_A1, HPF_Fs192000_Fc78_A0, -HPF_Fs192000_Fc78_B2, -HPF_Fs192000_Fc78_B1}, /* Coefficients for 90Hz centre frequency */ {HPF_Fs8000_Fc90_A2, /* 8kS/s coefficients */ HPF_Fs8000_Fc90_A1, HPF_Fs8000_Fc90_A0, -HPF_Fs8000_Fc90_B2, -HPF_Fs8000_Fc90_B1}, {HPF_Fs11025_Fc90_A2, /* 11kS/s coefficients */ HPF_Fs11025_Fc90_A1, HPF_Fs11025_Fc90_A0, -HPF_Fs11025_Fc90_B2, -HPF_Fs11025_Fc90_B1}, {HPF_Fs12000_Fc90_A2, /* 12kS/s coefficients */ HPF_Fs12000_Fc90_A1, HPF_Fs12000_Fc90_A0, -HPF_Fs12000_Fc90_B2, -HPF_Fs12000_Fc90_B1}, {HPF_Fs16000_Fc90_A2, /* 16kS/s coefficients */ HPF_Fs16000_Fc90_A1, HPF_Fs16000_Fc90_A0, -HPF_Fs16000_Fc90_B2, -HPF_Fs16000_Fc90_B1}, {HPF_Fs22050_Fc90_A2, /* 22kS/s coefficients */ HPF_Fs22050_Fc90_A1, HPF_Fs22050_Fc90_A0, -HPF_Fs22050_Fc90_B2, -HPF_Fs22050_Fc90_B1}, {HPF_Fs24000_Fc90_A2, /* 24kS/s coefficients */ HPF_Fs24000_Fc90_A1, HPF_Fs24000_Fc90_A0, -HPF_Fs24000_Fc90_B2, -HPF_Fs24000_Fc90_B1}, {HPF_Fs32000_Fc90_A2, /* 32kS/s coefficients */ HPF_Fs32000_Fc90_A1, HPF_Fs32000_Fc90_A0, -HPF_Fs32000_Fc90_B2, -HPF_Fs32000_Fc90_B1}, {HPF_Fs44100_Fc90_A2, /* 44kS/s coefficients */ HPF_Fs44100_Fc90_A1, HPF_Fs44100_Fc90_A0, -HPF_Fs44100_Fc90_B2, -HPF_Fs44100_Fc90_B1}, {HPF_Fs48000_Fc90_A2, /* 48kS/s coefficients */ HPF_Fs48000_Fc90_A1, HPF_Fs48000_Fc90_A0, -HPF_Fs48000_Fc90_B2, -HPF_Fs48000_Fc90_B1} , {HPF_Fs88200_Fc90_A2, /* 88kS/s coefficients */ HPF_Fs88200_Fc90_A1, HPF_Fs88200_Fc90_A0, -HPF_Fs88200_Fc90_B2, -HPF_Fs88200_Fc90_B1}, {HPF_Fs96000_Fc90_A2, /* 96kS/s coefficients */ HPF_Fs96000_Fc90_A1, HPF_Fs96000_Fc90_A0, -HPF_Fs96000_Fc90_B2, -HPF_Fs96000_Fc90_B1}, {HPF_Fs176400_Fc90_A2, /* 176kS/s coefficients */ HPF_Fs176400_Fc90_A1, HPF_Fs176400_Fc90_A0, -HPF_Fs176400_Fc90_B2, -HPF_Fs176400_Fc90_B1}, {HPF_Fs192000_Fc90_A2, /* 192kS/s coefficients */ HPF_Fs192000_Fc90_A1, HPF_Fs192000_Fc90_A0, -HPF_Fs192000_Fc90_B2, -HPF_Fs192000_Fc90_B1} }; /* * Band Pass Filter coefficient table */ const BP_FLOAT_Coefs_t LVDBE_BPF_Table[] = { /* Coefficients for 55Hz centre frequency */ {BPF_Fs8000_Fc55_A0, /* 8kS/s coefficients */ -BPF_Fs8000_Fc55_B2, -BPF_Fs8000_Fc55_B1}, {BPF_Fs11025_Fc55_A0, /* 11kS/s coefficients */ -BPF_Fs11025_Fc55_B2, -BPF_Fs11025_Fc55_B1}, {BPF_Fs12000_Fc55_A0, /* 12kS/s coefficients */ -BPF_Fs12000_Fc55_B2, -BPF_Fs12000_Fc55_B1}, {BPF_Fs16000_Fc55_A0, /* 16kS/s coefficients */ -BPF_Fs16000_Fc55_B2, -BPF_Fs16000_Fc55_B1}, {BPF_Fs22050_Fc55_A0, /* 22kS/s coefficients */ -BPF_Fs22050_Fc55_B2, -BPF_Fs22050_Fc55_B1}, {BPF_Fs24000_Fc55_A0, /* 24kS/s coefficients */ -BPF_Fs24000_Fc55_B2, -BPF_Fs24000_Fc55_B1}, {BPF_Fs32000_Fc55_A0, /* 32kS/s coefficients */ -BPF_Fs32000_Fc55_B2, -BPF_Fs32000_Fc55_B1}, {BPF_Fs44100_Fc55_A0, /* 44kS/s coefficients */ -BPF_Fs44100_Fc55_B2, -BPF_Fs44100_Fc55_B1}, {BPF_Fs48000_Fc55_A0, /* 48kS/s coefficients */ -BPF_Fs48000_Fc55_B2, -BPF_Fs48000_Fc55_B1}, {BPF_Fs88200_Fc55_A0, /* 88kS/s coefficients */ -BPF_Fs88200_Fc55_B2, -BPF_Fs88200_Fc55_B1}, {BPF_Fs96000_Fc55_A0, /* 96kS/s coefficients */ -BPF_Fs96000_Fc55_B2, -BPF_Fs96000_Fc55_B1}, {BPF_Fs176400_Fc55_A0, /* 176kS/s coefficients */ -BPF_Fs176400_Fc55_B2, -BPF_Fs176400_Fc55_B1}, {BPF_Fs192000_Fc55_A0, /* 192kS/s coefficients */ -BPF_Fs192000_Fc55_B2, -BPF_Fs192000_Fc55_B1}, /* Coefficients for 66Hz centre frequency */ {BPF_Fs8000_Fc66_A0, /* 8kS/s coefficients */ -BPF_Fs8000_Fc66_B2, -BPF_Fs8000_Fc66_B1}, {BPF_Fs11025_Fc66_A0, /* 11kS/s coefficients */ -BPF_Fs11025_Fc66_B2, -BPF_Fs11025_Fc66_B1}, {BPF_Fs12000_Fc66_A0, /* 12kS/s coefficients */ -BPF_Fs12000_Fc66_B2, -BPF_Fs12000_Fc66_B1}, {BPF_Fs16000_Fc66_A0, /* 16kS/s coefficients */ -BPF_Fs16000_Fc66_B2, -BPF_Fs16000_Fc66_B1}, {BPF_Fs22050_Fc66_A0, /* 22kS/s coefficients */ -BPF_Fs22050_Fc66_B2, -BPF_Fs22050_Fc66_B1}, {BPF_Fs24000_Fc66_A0, /* 24kS/s coefficients */ -BPF_Fs24000_Fc66_B2, -BPF_Fs24000_Fc66_B1}, {BPF_Fs32000_Fc66_A0, /* 32kS/s coefficients */ -BPF_Fs32000_Fc66_B2, -BPF_Fs32000_Fc66_B1}, {BPF_Fs44100_Fc66_A0, /* 44kS/s coefficients */ -BPF_Fs44100_Fc66_B2, -BPF_Fs44100_Fc66_B1}, {BPF_Fs48000_Fc66_A0, /* 48kS/s coefficients */ -BPF_Fs48000_Fc66_B2, -BPF_Fs48000_Fc66_B1}, {BPF_Fs88200_Fc66_A0, /* 88kS/s coefficients */ -BPF_Fs88200_Fc66_B2, -BPF_Fs88200_Fc66_B1}, {BPF_Fs96000_Fc66_A0, /* 96kS/s coefficients */ -BPF_Fs96000_Fc66_B2, -BPF_Fs96000_Fc66_B1}, {BPF_Fs176400_Fc66_A0, /* 176kS/s coefficients */ -BPF_Fs176400_Fc66_B2, -BPF_Fs176400_Fc66_B1}, {BPF_Fs192000_Fc66_A0, /* 192kS/s coefficients */ -BPF_Fs192000_Fc66_B2, -BPF_Fs192000_Fc66_B1}, /* Coefficients for 78Hz centre frequency */ {BPF_Fs8000_Fc78_A0, /* 8kS/s coefficients */ -BPF_Fs8000_Fc78_B2, -BPF_Fs8000_Fc78_B1}, {BPF_Fs11025_Fc78_A0, /* 11kS/s coefficients */ -BPF_Fs11025_Fc78_B2, -BPF_Fs11025_Fc78_B1}, {BPF_Fs12000_Fc78_A0, /* 12kS/s coefficients */ -BPF_Fs12000_Fc78_B2, -BPF_Fs12000_Fc78_B1}, {BPF_Fs16000_Fc78_A0, /* 16kS/s coefficients */ -BPF_Fs16000_Fc78_B2, -BPF_Fs16000_Fc78_B1}, {BPF_Fs22050_Fc78_A0, /* 22kS/s coefficients */ -BPF_Fs22050_Fc78_B2, -BPF_Fs22050_Fc78_B1}, {BPF_Fs24000_Fc78_A0, /* 24kS/s coefficients */ -BPF_Fs24000_Fc78_B2, -BPF_Fs24000_Fc78_B1}, {BPF_Fs32000_Fc78_A0, /* 32kS/s coefficients */ -BPF_Fs32000_Fc78_B2, -BPF_Fs32000_Fc78_B1}, {BPF_Fs44100_Fc78_A0, /* 44kS/s coefficients */ -BPF_Fs44100_Fc78_B2, -BPF_Fs44100_Fc78_B1}, {BPF_Fs48000_Fc78_A0, /* 48kS/s coefficients */ -BPF_Fs48000_Fc78_B2, -BPF_Fs48000_Fc78_B1}, {BPF_Fs88200_Fc66_A0, /* 88kS/s coefficients */ -BPF_Fs88200_Fc66_B2, -BPF_Fs88200_Fc66_B1}, {BPF_Fs96000_Fc78_A0, /* 96kS/s coefficients */ -BPF_Fs96000_Fc78_B2, -BPF_Fs96000_Fc78_B1}, {BPF_Fs176400_Fc66_A0, /* 176kS/s coefficients */ -BPF_Fs176400_Fc66_B2, -BPF_Fs176400_Fc66_B1}, {BPF_Fs192000_Fc78_A0, /* 192kS/s coefficients */ -BPF_Fs192000_Fc78_B2, -BPF_Fs192000_Fc78_B1}, /* Coefficients for 90Hz centre frequency */ {BPF_Fs8000_Fc90_A0, /* 8kS/s coefficients */ -BPF_Fs8000_Fc90_B2, -BPF_Fs8000_Fc90_B1}, {BPF_Fs11025_Fc90_A0, /* 11kS/s coefficients */ -BPF_Fs11025_Fc90_B2, -BPF_Fs11025_Fc90_B1}, {BPF_Fs12000_Fc90_A0, /* 12kS/s coefficients */ -BPF_Fs12000_Fc90_B2, -BPF_Fs12000_Fc90_B1}, {BPF_Fs16000_Fc90_A0, /* 16kS/s coefficients */ -BPF_Fs16000_Fc90_B2, -BPF_Fs16000_Fc90_B1}, {BPF_Fs22050_Fc90_A0, /* 22kS/s coefficients */ -BPF_Fs22050_Fc90_B2, -BPF_Fs22050_Fc90_B1}, {BPF_Fs24000_Fc90_A0, /* 24kS/s coefficients */ -BPF_Fs24000_Fc90_B2, -BPF_Fs24000_Fc90_B1}, {BPF_Fs32000_Fc90_A0, /* 32kS/s coefficients */ -BPF_Fs32000_Fc90_B2, -BPF_Fs32000_Fc90_B1}, {BPF_Fs44100_Fc90_A0, /* 44kS/s coefficients */ -BPF_Fs44100_Fc90_B2, -BPF_Fs44100_Fc90_B1}, {BPF_Fs48000_Fc90_A0, /* 48kS/s coefficients */ -BPF_Fs48000_Fc90_B2, -BPF_Fs48000_Fc90_B1}, {BPF_Fs88200_Fc90_A0, /* 88kS/s coefficients */ -BPF_Fs88200_Fc90_B2, -BPF_Fs88200_Fc90_B1}, {BPF_Fs96000_Fc90_A0, /* 96kS/s coefficients */ -BPF_Fs96000_Fc90_B2, -BPF_Fs96000_Fc90_B1}, {BPF_Fs176400_Fc90_A0, /* 176kS/s coefficients */ -BPF_Fs176400_Fc90_B2, -BPF_Fs176400_Fc90_B1}, {BPF_Fs192000_Fc90_A0, /* 192kS/s coefficients */ -BPF_Fs192000_Fc90_B2, -BPF_Fs192000_Fc90_B1} }; /************************************************************************************/ /* */ /* AGC constant tables */ /* */ /************************************************************************************/ /* Attack time (signal too large) */ const LVM_FLOAT LVDBE_AGC_ATTACK_Table[] = { AGC_ATTACK_Fs8000, AGC_ATTACK_Fs11025, AGC_ATTACK_Fs12000, AGC_ATTACK_Fs16000, AGC_ATTACK_Fs22050, AGC_ATTACK_Fs24000, AGC_ATTACK_Fs32000, AGC_ATTACK_Fs44100, AGC_ATTACK_Fs48000, AGC_ATTACK_Fs88200, AGC_ATTACK_Fs96000, AGC_ATTACK_Fs176400, AGC_ATTACK_Fs192000 }; /* Decay time (signal too small) */ const LVM_FLOAT LVDBE_AGC_DECAY_Table[] = {AGC_DECAY_Fs8000, AGC_DECAY_Fs11025, AGC_DECAY_Fs12000, AGC_DECAY_Fs16000, AGC_DECAY_Fs22050, AGC_DECAY_Fs24000, AGC_DECAY_Fs32000, AGC_DECAY_Fs44100, AGC_DECAY_Fs48000, AGC_DECAY_Fs88200, AGC_DECAY_FS96000, AGC_DECAY_Fs176400, AGC_DECAY_FS192000 }; /* Gain for use without the high pass filter */ const LVM_FLOAT LVDBE_AGC_GAIN_Table[] = { AGC_GAIN_0dB, AGC_GAIN_1dB, AGC_GAIN_2dB, AGC_GAIN_3dB, AGC_GAIN_4dB, AGC_GAIN_5dB, AGC_GAIN_6dB, AGC_GAIN_7dB, AGC_GAIN_8dB, AGC_GAIN_9dB, AGC_GAIN_10dB, AGC_GAIN_11dB, AGC_GAIN_12dB, AGC_GAIN_13dB, AGC_GAIN_14dB, AGC_GAIN_15dB}; /* Gain for use with the high pass filter */ const LVM_FLOAT LVDBE_AGC_HPFGAIN_Table[] = { AGC_HPFGAIN_0dB, AGC_HPFGAIN_1dB, AGC_HPFGAIN_2dB, AGC_HPFGAIN_3dB, AGC_HPFGAIN_4dB, AGC_HPFGAIN_5dB, AGC_HPFGAIN_6dB, AGC_HPFGAIN_7dB, AGC_HPFGAIN_8dB, AGC_HPFGAIN_9dB, AGC_HPFGAIN_10dB, AGC_HPFGAIN_11dB, AGC_HPFGAIN_12dB, AGC_HPFGAIN_13dB, AGC_HPFGAIN_14dB, AGC_HPFGAIN_15dB}; /************************************************************************************/ /* */ /* Volume control gain and time constant tables */ /* */ /************************************************************************************/ /* dB to linear conversion table */ const LVM_FLOAT LVDBE_VolumeTable[] = {0.500000f, /* -6dB */ 0.562341f, /* -5dB */ 0.630957f, /* -4dB */ 0.707946f, /* -3dB */ 0.794328f, /* -2dB */ 0.891251f, /* -1dB */ 1.000000f}; /* 0dB */ const LVM_FLOAT LVDBE_VolumeTCTable[] = { VOL_TC_Fs8000, VOL_TC_Fs11025, VOL_TC_Fs12000, VOL_TC_Fs16000, VOL_TC_Fs22050, VOL_TC_Fs24000, VOL_TC_Fs32000, VOL_TC_Fs44100, VOL_TC_Fs48000, VOL_TC_Fs88200, VOL_TC_Fs96000, VOL_TC_Fs176400, VOL_TC_Fs192000}; const LVM_INT16 LVDBE_MixerTCTable[] = { MIX_TC_Fs8000, MIX_TC_Fs11025, MIX_TC_Fs12000, MIX_TC_Fs16000, MIX_TC_Fs22050, MIX_TC_Fs24000, MIX_TC_Fs32000, MIX_TC_Fs44100, MIX_TC_Fs48000, MIX_TC_Fs88200, MIX_TC_Fs96000, MIX_TC_Fs176400, MIX_TC_Fs192000 };