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Mirror the +90 degree elevation delays for -90 degrees

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This commit is contained in:
Chris Robinson
2019-03-10 21:47:05 -07:00
parent 2c67ab0d2c
commit 0689333da8
1 changed files with 19 additions and 12 deletions
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utils/makehrtf.cpp
+19 -12
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@@ -2361,22 +2361,29 @@ static void SynthesizeOnsets(HrirDataT *hData)
const uint oi{field.mEvStart};
if(oi <= 0) return;
for(uint ti{0u};ti < channels;ti++)
/* Get the -90 degree elevation delays by mirroring the +90 degree
* elevation delays. The responses are on a spherical grid centered
* between the ears, so these should align.
*/
if(channels > 1)
{
double t{0.0};
for(uint ai{0u};ai < field.mEvs[oi].mAzCount;ai++)
t += field.mEvs[oi].mAzs[ai].mDelays[ti];
field.mEvs[0].mAzs[0].mDelays[ti] = 1.32e-4 + (t / field.mEvs[oi].mAzCount);
field.mEvs[0].mAzs[0].mDelays[0] = field.mEvs[field.mEvCount-1].mAzs[0].mDelays[1];
field.mEvs[0].mAzs[0].mDelays[1] = field.mEvs[field.mEvCount-1].mAzs[0].mDelays[0];
}
else
field.mEvs[0].mAzs[0].mDelays[0] = field.mEvs[field.mEvCount-1].mAzs[0].mDelays[0];
for(uint ei{1u};ei < field.mEvStart;ei++)
for(uint ei{1u};ei < field.mEvStart;ei++)
{
const double of{static_cast<double>(ei) / field.mEvStart};
for(uint ai{0u};ai < field.mEvs[ei].mAzCount;ai++)
{
const double of{static_cast<double>(ei) / field.mEvStart};
for(uint ai{0u};ai < field.mEvs[ei].mAzCount;ai++)
{
uint a0, a1;
double af;
uint a0, a1;
double af;
CalcAzIndices(field, oi, field.mEvs[ei].mAzs[ai].mAzimuth, &a0, &a1, &af);
CalcAzIndices(field, oi, field.mEvs[ei].mAzs[ai].mAzimuth, &a0, &a1, &af);
for(uint ti{0u};ti < channels;ti++)
{
double other{Lerp(field.mEvs[oi].mAzs[a0].mDelays[ti],
field.mEvs[oi].mAzs[a1].mDelays[ti], af)};
field.mEvs[ei].mAzs[ai].mDelays[ti] = Lerp(field.mEvs[0].mAzs[0].mDelays[ti],