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| author | Eric Laurent <elaurent@google.com> | 2012-08-24 14:17:34 -0700 |
|---|---|---|
| committer | Eric Laurent <elaurent@google.com> | 2012-08-24 14:17:34 -0700 |
| commit | e44615ff6022239850a3ea459ad6e07b44c37544 (patch) | |
| tree | 67b26af98c6bff960193a642bf0a48181c1cee43 /media/libeffects | |
| parent | 9a150640a28d3fa5507a590125a6c004681bb221 (diff) | |
| download | frameworks_av-e44615ff6022239850a3ea459ad6e07b44c37544.zip frameworks_av-e44615ff6022239850a3ea459ad6e07b44c37544.tar.gz frameworks_av-e44615ff6022239850a3ea459ad6e07b44c37544.tar.bz2 | |
Reduce THD when equalizer is ON.
Increase headroom in LVM bundle to reduce THD when equalizer is ON
with high band gains.
Also add a workaround for a bug in headroom parameter control.
Change-Id: I1d67c9ae475f6cf852c2e0e49bacfc82a5e484fd
Diffstat (limited to 'media/libeffects')
| -rw-r--r-- | media/libeffects/lvm/lib/Bundle/src/LVM_Init.c | 4 | ||||
| -rw-r--r-- | media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp | 4 |
2 files changed, 5 insertions, 3 deletions
diff --git a/media/libeffects/lvm/lib/Bundle/src/LVM_Init.c b/media/libeffects/lvm/lib/Bundle/src/LVM_Init.c index 20370b7..dd34fb5 100644 --- a/media/libeffects/lvm/lib/Bundle/src/LVM_Init.c +++ b/media/libeffects/lvm/lib/Bundle/src/LVM_Init.c @@ -557,7 +557,9 @@ LVM_ReturnStatus_en LVM_GetInstanceHandle(LVM_Handle_t *phInstance, */ pInstance->Params.OperatingMode = LVM_MODE_OFF; pInstance->Params.SampleRate = LVM_FS_8000; - pInstance->Params.SourceFormat = LVM_MONO; +// FIXME: Workaround to avoid reset of headroom parameters on first call to LVM_Process. +// pInstance->Params.SourceFormat = LVM_MONO; + pInstance->Params.SourceFormat = LVM_STEREO; pInstance->Params.SpeakerType = LVM_HEADPHONES; pInstance->Params.VC_EffectLevel = 0; pInstance->Params.VC_Balance = 0; diff --git a/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp b/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp index 1a45e35..32ee89e 100644 --- a/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp +++ b/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp @@ -698,10 +698,10 @@ int LvmBundle_init(EffectContext *pContext){ /* Set the headroom parameters */ HeadroomBandDef[0].Limit_Low = 20; HeadroomBandDef[0].Limit_High = 4999; - HeadroomBandDef[0].Headroom_Offset = 3; + HeadroomBandDef[0].Headroom_Offset = 0; HeadroomBandDef[1].Limit_Low = 5000; HeadroomBandDef[1].Limit_High = 24000; - HeadroomBandDef[1].Headroom_Offset = 4; + HeadroomBandDef[1].Headroom_Offset = 0; HeadroomParams.pHeadroomDefinition = &HeadroomBandDef[0]; HeadroomParams.Headroom_OperatingMode = LVM_HEADROOM_ON; HeadroomParams.NHeadroomBands = 2; |