diff options
| author | Chris Robinson <[email protected]> | 2016-09-08 16:22:46 -0700 |
|---|---|---|
| committer | Chris Robinson <[email protected]> | 2016-09-08 16:22:46 -0700 |
| commit | 45dfdca6f9efa7ec8fb5c16be1bb0f513fe5d772 (patch) | |
| tree | 4f3d8b4d212110e25573715530d264ce184d7911 | |
| parent | 0f24f49a44a12d139692d0846b2722de2213f1a8 (diff) | |
Reduce the volume for the HRTF ambisonic decoder
Since it's accumulating multiple HRIRs for two output speakers, it seems to be
a better option to preserve the amplitude of the high-frequency decoder instead
of increasing it, and reduce the amplitude of the low-frequency decoder to
compensate.
| -rw-r--r-- | Alc/hrtf.c | 28 |
1 files changed, 14 insertions, 14 deletions
@@ -195,20 +195,20 @@ ALuint BuildBFormatHrtf(const struct Hrtf *Hrtf, ALfloat (*coeffs)[HRIR_LENGTH][ { DEG2RAD(-90.0f), DEG2RAD( 0.0f) }, }; static const ALfloat Ambi3DMatrix[14][2][MAX_AMBI_COEFFS] = { - { { 0.18898176f, 0.000000000f, 0.188982460f, 0.000000000f }, { 0.0714283915f, 0.0000000000f, 0.1237180798f, 0.0000000000f } }, - { { 0.18898176f, 0.109109004f, 0.109109004f, 0.109109004f }, { 0.0714283915f, 0.0714286206f, 0.0714286206f, 0.0714286206f } }, - { { 0.18898176f, -0.109109004f, 0.109109004f, 0.109109004f }, { 0.0714283915f, -0.0714286206f, 0.0714286206f, 0.0714286206f } }, - { { 0.18898176f, -0.109109004f, 0.109109004f, -0.109109004f }, { 0.0714283915f, -0.0714286206f, 0.0714286206f, -0.0714286206f } }, - { { 0.18898176f, 0.109109004f, 0.109109004f, -0.109109004f }, { 0.0714283915f, 0.0714286206f, 0.0714286206f, -0.0714286206f } }, - { { 0.18898176f, 0.000000000f, 0.000000000f, 0.188982460f }, { 0.0714283915f, 0.0000000000f, 0.0000000000f, 0.1237180798f } }, - { { 0.18898176f, -0.188982460f, 0.000000000f, 0.000000000f }, { 0.0714283915f, -0.1237180798f, 0.0000000000f, 0.0000000000f } }, - { { 0.18898176f, 0.000000000f, 0.000000000f, -0.188982460f }, { 0.0714283915f, 0.0000000000f, 0.0000000000f, -0.1237180798f } }, - { { 0.18898176f, 0.188982460f, 0.000000000f, 0.000000000f }, { 0.0714283915f, 0.1237180798f, 0.0000000000f, 0.0000000000f } }, - { { 0.18898176f, 0.109109004f, -0.109109004f, 0.109109004f }, { 0.0714283915f, 0.0714286206f, -0.0714286206f, 0.0714286206f } }, - { { 0.18898176f, -0.109109004f, -0.109109004f, 0.109109004f }, { 0.0714283915f, -0.0714286206f, -0.0714286206f, 0.0714286206f } }, - { { 0.18898176f, -0.109109004f, -0.109109004f, -0.109109004f }, { 0.0714283915f, -0.0714286206f, -0.0714286206f, -0.0714286206f } }, - { { 0.18898176f, 0.109109004f, -0.109109004f, -0.109109004f }, { 0.0714283915f, 0.0714286206f, -0.0714286206f, -0.0714286206f } }, - { { 0.18898176f, 0.000000000f, -0.188982460f, 0.000000000f }, { 0.0714283915f, 0.0000000000f, -0.1237180798f, 0.0000000000f } }, + { { 0.071428392f, 0.000000000f, 0.071428392f, 0.000000000f }, { 0.0269973975f, 0.0000000000f, 0.0467610443f, 0.0000000000f } }, + { { 0.071428392f, 0.041239332f, 0.041239332f, 0.041239332f }, { 0.0269973975f, 0.0269973975f, 0.0269973975f, 0.0269973975f } }, + { { 0.071428392f, -0.041239332f, 0.041239332f, 0.041239332f }, { 0.0269973975f, -0.0269973975f, 0.0269973975f, 0.0269973975f } }, + { { 0.071428392f, -0.041239332f, 0.041239332f, -0.041239332f }, { 0.0269973975f, -0.0269973975f, 0.0269973975f, -0.0269973975f } }, + { { 0.071428392f, 0.041239332f, 0.041239332f, -0.041239332f }, { 0.0269973975f, 0.0269973975f, 0.0269973975f, -0.0269973975f } }, + { { 0.071428392f, 0.000000000f, 0.000000000f, 0.071428392f }, { 0.0269973975f, 0.0000000000f, 0.0000000000f, 0.0467610443f } }, + { { 0.071428392f, -0.071428392f, 0.000000000f, 0.000000000f }, { 0.0269973975f, -0.0467610443f, 0.0000000000f, 0.0000000000f } }, + { { 0.071428392f, 0.000000000f, 0.000000000f, -0.071428392f }, { 0.0269973975f, 0.0000000000f, 0.0000000000f, -0.0467610443f } }, + { { 0.071428392f, 0.071428392f, 0.000000000f, 0.000000000f }, { 0.0269973975f, 0.0467610443f, 0.0000000000f, 0.0000000000f } }, + { { 0.071428392f, 0.041239332f, -0.041239332f, 0.041239332f }, { 0.0269973975f, 0.0269973975f, -0.0269973975f, 0.0269973975f } }, + { { 0.071428392f, -0.041239332f, -0.041239332f, 0.041239332f }, { 0.0269973975f, -0.0269973975f, -0.0269973975f, 0.0269973975f } }, + { { 0.071428392f, -0.041239332f, -0.041239332f, -0.041239332f }, { 0.0269973975f, -0.0269973975f, -0.0269973975f, -0.0269973975f } }, + { { 0.071428392f, 0.041239332f, -0.041239332f, -0.041239332f }, { 0.0269973975f, 0.0269973975f, -0.0269973975f, -0.0269973975f } }, + { { 0.071428392f, 0.000000000f, -0.071428392f, 0.000000000f }, { 0.0269973975f, 0.0000000000f, -0.0467610443f, 0.0000000000f } }, }; /* Change this to 2 for dual-band HRTF processing. May require a higher quality * band-splitter, or better calculation of the new IR length to deal with the |