MirrorMirror
/
headphones
mirror of https://github.com/ploopyco/headphones.git
2
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Reset memory on filter type change..

This commit is contained in:
George Norton 2023-06-18 00:32:20 +01:00
parent 150eed2b8a
commit 4d224f5e21
1 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
firmware/code/configuration_manager.c
View File

@ -170,9 +170,17 @@ void apply_filter_configuration(filter_configuration_tlv *filters) {
}
if (type_changed) {
fix16_t left[2] = { bqf_filters_mem_left[0].x_2, bqf_filters_mem_left[0].x_1 };
fix16_t right[2] = { bqf_filters_mem_right[0].x_2, bqf_filters_mem_right[0].x_1 };
for (int i=0; i<MAX_FILTER_STAGES; i++) {
bqf_memreset(&bqf_filters_mem_left[i]);
bqf_memreset(&bqf_filters_mem_right[i]);
// The memory structure stores the last 2 input samples, we can replay them into
// the new filter rather than starting again from scratch.
left[0] = bqf_transform(left[0], &bqf_filters_left[i], &bqf_filters_mem_left[i]);
left[1] = bqf_transform(left[1], &bqf_filters_left[i], &bqf_filters_mem_left[i]);
right[0] = bqf_transform(right[0], &bqf_filters_left[i], &bqf_filters_mem_left[i]);
right[1] = bqf_transform(right[1], &bqf_filters_left[i], &bqf_filters_mem_left[i]);
}
}
}