Commit message (Collapse) | Author | Age | Files | Lines | |
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* | Convert the BFormat decoder to C++ | Chris Robinson | 2018-11-03 | 1 | -3/+10 |
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* | Replace restrict with RESTRICT | Chris Robinson | 2018-10-29 | 1 | -3/+3 |
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* | Move the bnad-splitter filters to a separate source | Chris Robinson | 2018-04-21 | 1 | -34/+0 |
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* | Avoid duplicating some scale tables | Chris Robinson | 2018-02-18 | 1 | -0/+8 |
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* | Use an alternate ambisonic HRTF decode layout | Chris Robinson | 2018-02-13 | 1 | -2/+2 |
| | | | | | | Similar to the previous, but includes the top and bottom HRTF responses. The higher-order decode (for the "basic" HRTF output) also now uses 2H1P mixed- order instead of 2H1V, which seems more stable. | ||||
* | Make bformatdec_free and ambiup_free clear the freed pointer | Chris Robinson | 2018-02-12 | 1 | -2/+2 |
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* | Clarify some macro names using ambisonic mixed-mode notation | Chris Robinson | 2018-02-09 | 1 | -8/+8 |
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* | Replace some freq_mult variable names with f0norm | Chris Robinson | 2018-01-13 | 1 | -2/+2 |
| | | | | | | The latter is a bit more descriptive as f0 is often used to denote the reference frequency of a filter, so f0norm indicates the normalized reference frequency (ref_freq / sample_rate). | ||||
* | Add a front-stablizer config option for surround sound modes | Chris Robinson | 2017-07-31 | 1 | -0/+8 |
| | | | | | | | | | | | | This improves a stereo (front-left + front-right) sound "image" by generating a front-center channel signal. Done correctly, it helps reduce the comb effects and phase errors associated with using only two speakers to simulate center sounds. Note that it shouldn't be used if the front-center channel is already included in the positional audio mix (the dialog effect is okay). In general, it may actually be better to exclude the front-center channel from the positional audio mix and use this to generate front-center output. | ||||
* | Add an all-pass filter that replicates the band splitter's phase shift | Chris Robinson | 2017-07-19 | 1 | -0/+12 |
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* | Remove an unneeded function | Chris Robinson | 2017-02-28 | 1 | -1/+0 |
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* | Remove an unused function | Chris Robinson | 2017-02-23 | 1 | -1/+0 |
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* | Remove an unused flag enum | Chris Robinson | 2017-02-20 | 1 | -3/+0 |
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* | Apply distance compensation when writing to the output | Chris Robinson | 2017-02-19 | 1 | -1/+1 |
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* | Don't use periphonic FOA when the HOA decoder is not periphonic | Chris Robinson | 2017-02-19 | 1 | -0/+1 |
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* | Replace more ALuint with ALsizei | Chris Robinson | 2017-01-29 | 1 | -1/+1 |
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* | Improve the ambisonic upscaling methods | Chris Robinson | 2017-01-24 | 1 | -0/+18 |
| | | | | | | | | This now takes advantage of the differences seen in generated decoder matrices for first-order compared to second- and third-order, such that with the appropriate frequency-dependent scaling applied to first-order content, the result is identical with a higher-order decoder matrix compared to a first- order matrix for the same layout. | ||||
* | More ALsizei, with the B-Format decoder | Chris Robinson | 2017-01-16 | 1 | -4/+4 |
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* | Use ALsizei in a few more places | Chris Robinson | 2017-01-16 | 1 | -1/+1 |
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* | Make some pointer-to-array parameters const | Chris Robinson | 2016-10-04 | 1 | -3/+3 |
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* | Band-split the HRIRs when building the ambisonic decoder filters | Chris Robinson | 2016-08-21 | 1 | -0/+15 |
| | | | | | This allows each HRIR to contribute a frequency-dependent response, essentially acting like a dual-band decoder playing over the cube speaker array. | ||||
* | Add a stand-alone upsampler for higher-order ambisonic oputput | Chris Robinson | 2016-07-30 | 1 | -0/+10 |
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* | Add a config option for distance compensation | Chris Robinson | 2016-03-26 | 1 | -1/+5 |
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* | Up-sample first-order content when using a higher order HQ decoder | Chris Robinson | 2016-03-23 | 1 | -0/+5 |
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* | Add a specific output for first-order sources | Chris Robinson | 2016-03-22 | 1 | -0/+1 |
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* | Add a dual-band ambisonic decoder | Chris Robinson | 2016-03-15 | 1 | -0/+14 |
This uses a virtual B-Format buffer for mixing, and then uses a dual-band decoder for improved positional quality. This currently only works with first- order output since first-order input (from the AL_EXT_BFROMAT extension) would not sound correct when fed through a second- or third-order decoder. This also does not currently implement near-field compensation since near-field rendering effects are not implemented. |