3 Implemented the AL_EXT_STEREO_ANGLES, AL_EXT_SOURCE_RADIUS,
4 AL_SOFT_gain_clamp_ex, and AL_SOFT_source_resampler extensions.
6 Implemented 3D processing for some effects. Currently implemented for
7 Reverb, Compressor, Equalizer, and Ring Modulator.
9 Implemented 2-channel UHJ output encoding. This needs to be enabled with a
10 config option to be used.
12 Implemented dual-band processing for high-quality ambisonic decoding.
14 Implemented distance-compensation for surround sound output.
16 Implemented near-field emulation and compensation with ambisonic rendering.
17 Currently only applies when using the high-quality ambisonic decoder or
18 ambisonic output, with appropriate config options.
20 Implemented a config option to select a preferred HRTF.
22 Implemented a run-time check for NEON extensions using /proc/cpuinfo.
24 Fixed building on compilers with NEON support but don't default to having
27 Fixed support for JACK on Windows.
29 Fixed starting a source while alcSuspendContext is in effect.
31 Fixed detection of headsets as headphones, with MMDevAPI.
33 Added support for AmbDec config files, for custom ambisonic decoder
34 configurations. Version 3 files only.
36 Added backend-specific options to alsoft-config.
38 Added first-, second-, and third-order ambisonic output formats. Currently
39 only works with backends that don't rely on channel labels, like JACK,
42 Added a build option to embed the default HRTFs into the lib.
44 Added AmbDec presets to enable high-quality ambisonic decoding.
46 Added an AmbDec preset for 3D7.1 speaker setups.
48 Added documentation regarding Ambisonics, 3D7.1, AmbDec config files, and
49 the provided ambdec presets.
51 Added the ability for MMDevAPI to open devices given a Device ID or GUID
54 Added an option to the example apps to open a specific device.
56 Increased the maximum auxiliary send limit to 16 (up from 4). Requires
57 requesting them with the ALC_MAX_AUXILIARY_SENDS context creation
60 Increased the default auxiliary effect slot count to 64 (up from 4).
62 Reduced the default period count to 3 (down from 4).
64 Slightly improved automatic naming for enumerated HRTFs.
66 Improved B-Format decoding with HRTF output.
68 Improved internal property handling for better batching behavior.
70 Improved performance of certain filter uses.
72 Altered cone behavior for automatic auxiliary send gain and gainhf
73 management. Now better represents the energy the room receives.
75 Removed support for the AL_SOFT_buffer_samples and AL_SOFT_buffer_sub_data
76 extensions. Due to conflicts with AL_EXT_SOURCE_RADIUS.
80 Implemented device enumeration for OSSv4.
82 Fixed building on OSX.
84 Fixed building on non-Windows systems without POSIX-2008.
86 Fixed Dedicated Dialog and Dedicated LFE effect output.
88 Added a build option to override the share install dir.
90 Added a build option to static-link libgcc for MinGW.
94 Fixed building with JACK and without PulseAudio.
96 Fixed building on FreeBSD.
98 Fixed the ALSA backend's allow-resampler option.
100 Fixed handling of inexact ALSA period counts.
102 Altered device naming scheme on Windows backends to better match other
105 Updated the CoreAudio backend to use the AudioComponent API. This clears up
106 deprecation warnings for OSX 10.11, although requires OSX 10.6 or newer.
110 Implemented a JACK playback backend.
112 Implemented the AL_EXT_BFORMAT and AL_EXT_MULAW_BFORMAT extensions.
114 Implemented the ALC_SOFT_HRTF extension.
116 Implemented C, SSE3, and SSE4.1 based 4- and 8-point Sinc resamplers.
118 Implemented a C and SSE based band-limited Sinc resampler. This does 12- to
119 24-point Sinc resampling, and performs anti-aliasing.
121 Implemented B-Format output support for the wave file writer. This creates
122 FuMa-style first-order Ambisonics wave files (AMB format).
124 Implemented a stereo-mode config option for treating stereo modes as either
125 speakers or headphones.
127 Implemented per-device configuration options.
129 Fixed handling of PulseAudio and MMDevAPI devices that have identical
132 Fixed a potential lockup when stopping playback of suspended PulseAudio devices.
134 Fixed logging of Unicode characters on Windows.
136 Fixed 5.1 surround sound channels. By default it will now use the side
137 channels for the surround output. A configuration using rear channels is
140 Fixed the QSA backend potentially altering the capture format.
142 Fixed detecting MMDevAPI's default device.
144 Fixed returning the default capture device name.
146 Fixed mixing property calculations when deferring context updates.
148 Altered the behavior of alcSuspendContext and alcProcessContext to better
149 match certain Windows drivers.
151 Altered the panning algorithm, utilizing Ambisonics for better side and
152 back positioning cues with surround sound output.
154 Improved support for certain older Windows apps.
156 Improved the alffplay example to support surround sound streams.
158 Improved support for building as a sub-project.
160 Added an HRTF playback example.
162 Added a tone generator output test.
164 Added a toolchain to help with cross-compiling to Android.
168 Implemented EFX Chorus, Flanger, Distortion, Equalizer, and Compressor
171 Implemented high-pass and band-pass EFX filters.
173 Implemented the high-pass filter for the EAXReverb effect.
175 Implemented SSE2 and SSE4.1 linear resamplers.
177 Implemented Neon-enhanced non-HRTF mixers.
179 Implemented a QSA backend, for QNX.
181 Implemented the ALC_SOFT_pause_device, AL_SOFT_deferred_updates,
182 AL_SOFT_block_alignment, AL_SOFT_MSADPCM, and AL_SOFT_source_length
185 Fixed resetting mmdevapi backend devices.
187 Fixed clamping when converting 32-bit float samples to integer.
189 Fixed modulation range in the Modulator effect.
191 Several fixes for the OpenSL playback backend.
193 Fixed device specifier names that have Unicode characters on Windows.
195 Added support for filenames and paths with Unicode (UTF-8) characters on
198 Added support for alsoft.conf config files found in XDG Base Directory
199 Specification locations (XDG_CONFIG_DIRS and XDG_CONFIG_HOME, or their
200 defaults) on non-Windows systems.
202 Added a GUI configuration utility (requires Qt 4.8).
204 Added support for environment variable expansion in config options (not
205 keys or section names).
207 Added an example that uses SDL2 and ffmpeg.
209 Modified examples to use SDL_sound.
211 Modified CMake config option names for better sorting.
213 HRTF data sets specified in the hrtf_tables config option may now be
214 relative or absolute filenames.
216 Made the default HRTF data set an external file, and added a data set for
217 48khz playback in addition to 44.1khz.
219 Added support for C11 atomic methods.
221 Improved support for some non-GNU build systems.
225 Fixed a regression with retrieving the source's AL_GAIN property.
229 Fixed device enumeration with the OSS backend.
231 Reorganized internal mixing logic, so unneeded steps can potentially be
232 skipped for better performance.
234 Removed the lookup table for calculating the mixing pans. The panning is
235 now calculated directly for better precision.
237 Improved the panning of stereo source channels when using stereo output.
239 Improved source filter quality on send paths.
241 Added a config option to allow PulseAudio to move streams between devices.
243 The PulseAudio backend will now attempt to spawn a server by default.
245 Added a workaround for a DirectSound bug relating to float32 output.
247 Added SSE-based mixers, for HRTF and non-HRTF mixing.
249 Added support for the new AL_SOFT_source_latency extension.
251 Improved ALSA capture by avoiding an extra buffer when using sizes
252 supported by the underlying device.
254 Improved the makehrtf utility to support new options and input formats.
256 Modified the CFLAGS declared in the pkg-config file so the "AL/" portion of
257 the header includes can optionally be omitted.
259 Added a couple example code programs to show how to apply reverb, and
262 The configuration sample is now installed into the share/openal/ directory
263 instead of /etc/openal.
265 The configuration sample now gets installed by default.