相关数据:
FAC->Audio->EQ Setting
EQ Band 1-7
Gain 0
Frequency 500
Q Factor 1.5
FAC->Audio->PEQ 1/2/3
Enable Enable
Center Freq. 230
Q Factor 3.5
Gain Step -13
这样看,EQ 为7 段,PEQ为3段,EQ+PEQ总共可以设置10段不同频率下的增益,品质因数作为辅助,调整增益的作用范围。
频响曲线:
API接口:
EQ数据结构:
1、 g_stFactoryUserData.Audio.EQsetting.n_EQ_Gain //放在FAC菜单,只有一组:
2.1、g_stSoundData.stAudioSoundModeSetting[SoundModeIndex].EQ120hz //在用户菜单,关联声音模式,不同的声音模式EQ数据不同,保存当前值
2.2、g_stSettingDefault_FactoryUser.stAudioSoundModeSetting[SoundModeIndex].EQ120hz //在用户菜单,关联声音模式,不同的声音模式EQ数据不同,默认值
2.3、g_stSettingDefault_Sound.stAudioSoundModeSetting[SoundModeIndex].EQ120hz //在用户菜单,关联声音模式,不同的声音模式EQ数据不同,默认值
PEQ数据结构
g_stFactoryUserData.Audio.PEQ1.n_Audio_PEQ1_CenterFreq
调用接口:
BOOLEAN APP_Audio_Initial(void)
{
BOOLEAN IsSuccess = APP_TRUE;
INT8 i8Balance = 0;
UINT8 ucStableSound = 0;
UINT8 ucSurround = 0;
#ifdef SUPPORT_PEQ_SRS_SETTING
TVFE_Audio_Equalizer_Init_t EqBandQvalueSetting;
AL_Setting_Read(APP_Data_UserSetting_Handle(), SYS_SET_ID_FACTUSER,0,
sizeof(APP_SETTING_FactoryUser_t), &g_stFactoryUserData);
EqBandQvalueSetting.bEQ_fq[0] = g_stFactoryUserData.Audio.EQsetting.n_EQ_Freq[0];
EqBandQvalueSetting.bQfactor[0] = g_stFactoryUserData.Audio.EQsetting.n_EQ_q[0];
EqBandQvalueSetting.bEQ_fq[1] = g_stFactoryUserData.Audio.EQsetting.n_EQ_Freq[1];
EqBandQvalueSetting.bQfactor[1] = g_stFactoryUserData.Audio.EQsetting.n_EQ_q[1];
EqBandQvalueSetting.bEQ_fq[2] = g_stFactoryUserData.Audio.EQsetting.n_EQ_Freq[2];
EqBandQvalueSetting.bQfactor[2] = g_stFactoryUserData.Audio.EQsetting.n_EQ_q[2];
EqBandQvalueSetting.bEQ_fq[3] = g_stFactoryUserData.Audio.EQsetting.n_EQ_Freq[3];
EqBandQvalueSetting.bQfactor[3] = g_stFactoryUserData.Audio.EQsetting.n_EQ_q[3];
EqBandQvalueSetting.bEQ_fq[4] = g_stFactoryUserData.Audio.EQsetting.n_EQ_Freq[4];
EqBandQvalueSetting.bQfactor[4] = g_stFactoryUserData.Audio.EQsetting.n_EQ_q[4];
EqBandQvalueSetting.bEQ_fq[5] = g_stFactoryUserData.Audio.EQsetting.n_EQ_Freq[5];
EqBandQvalueSetting.bQfactor[5] = g_stFactoryUserData.Audio.EQsetting.n_EQ_q[5];
EqBandQvalueSetting.bEQ_fq[6] = g_stFactoryUserData.Audio.EQsetting.n_EQ_Freq[6];
EqBandQvalueSetting.bQfactor[6] = g_stFactoryUserData.Audio.EQsetting.n_EQ_q[6];
TVFE_Audio_Initial_Main_Equalizer(&EqBandQvalueSetting);
MID_Audio_EQ(
g_stFactoryUserData.Audio.EQsetting.n_EQ_Gain[0],
g_stFactoryUserData.Audio.EQsetting.n_EQ_Gain[1],
g_stFactoryUserData.Audio.EQsetting.n_EQ_Gain[2],
g_stFactoryUserData.Audio.EQsetting.n_EQ_Gain[3],
g_stFactoryUserData.Audio.EQsetting.n_EQ_Gain[4],
g_stFactoryUserData.Audio.EQsetting.n_EQ_Gain[5],
g_stFactoryUserData.Audio.EQsetting.n_EQ_Gain[6] );
#endif
//PEQ SETTING
TVFE_Audio_Parametric_Equalizer_Config_t PEQ_Setting;
//Enable
PEQ_Setting.enable[0] = g_stFactoryUserData.Audio.PEQ1.n_Audio_PEQ1_Enable;
PEQ_Setting.enable[1] = g_stFactoryUserData.Audio.PEQ2.n_Audio_PEQ2_Enable;
PEQ_Setting.enable[2] = g_stFactoryUserData.Audio.PEQ3.n_Audio_PEQ3_Enable;
//frequency
PEQ_Setting.eq_fq[0] =g_stFactoryUserData.Audio.PEQ1.n_Audio_PEQ1_CenterFreq;
PEQ_Setting.eq_fq[1] =g_stFactoryUserData.Audio.PEQ2.n_Audio_PEQ2_CenterFreq;
PEQ_Setting.eq_fq[2] =g_stFactoryUserData.Audio.PEQ3.n_Audio_PEQ3_CenterFreq;
//Gain
PEQ_Setting.gain[0] = g_stFactoryUserData.Audio.PEQ1.n_Audio_PEQ1_GainStep;
PEQ_Setting.gain[1] = g_stFactoryUserData.Audio.PEQ2.n_Audio_PEQ2_GainStep;
PEQ_Setting.gain[2] = g_stFactoryUserData.Audio.PEQ3.n_Audio_PEQ3_GainStep;
//Q
PEQ_Setting.Qfactor[0] = g_stFactoryUserData.Audio.PEQ1.n_Audio_PEQ1_q;
PEQ_Setting.Qfactor[1] = g_stFactoryUserData.Audio.PEQ2.n_Audio_PEQ2_q;
PEQ_Setting.Qfactor[2] = g_stFactoryUserData.Audio.PEQ3.n_Audio_PEQ3_q;
TVFE_Audio_Set_Parametric_Equalizer_Config(&PEQ_Setting);
return IsSuccess;
}