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audioconvert: improve noise shaping

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Reorganize things a little so we can add more noise shapers.
Add sloped triangular noise.
Add wanamaker3 noise shaping.
This commit is contained in:
Wim Taymans 2022-07-15 12:36:15 +02:00
parent 7151150802
commit a4db745a7e
6 changed files with 272 additions and 171 deletions
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4
spa/plugins/audioconvert/audioconvert.c
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@ -628,8 +628,8 @@ static int impl_node_enum_params(void *object, int seq,
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_PropInfo, id,
SPA_PROP_INFO_name, SPA_POD_String("dither.noise"),
SPA_PROP_INFO_description, SPA_POD_String("Add dithering noise"),
SPA_PROP_INFO_type, SPA_POD_CHOICE_RANGE_Int(this->dir[1].conv.noise, 0, 16),
SPA_PROP_INFO_description, SPA_POD_String("Add noise bits"),
SPA_PROP_INFO_type, SPA_POD_CHOICE_RANGE_Int(this->dir[1].conv.noise_bits, 0, 16),
SPA_PROP_INFO_params, SPA_POD_Bool(true));
break;
case 23: