3 Implemented the AL_EXT_STEREO_ANGLES and AL_EXT_SOURCE_RADIUS extensions.
5 Implemented the AL_SOFT_gain_clamp_ex extension.
7 Implemented 3D processing for some effects. Currently implemented for
8 Reverb, Compressor, Equalizer, and Ring Modulator.
10 Implemented 2-channel UHJ output encoding. Used by default for stereo playback.
12 Implemented dual-band processing for high-quality ambisonic decoding.
14 Implemented distance-compensation for high-quality ambisonic decoding.
16 Implemented a config option to select a preferred HRTF.
18 Implemented a run-time check for NEON extensions using /proc/cpuinfo.
20 Fixed building on compilers with NEON support but don't default to having
23 Fixed support for JACK on Windows.
25 Fixed starting a source while alcSuspendContext is in effect.
27 Fixed detection of headsets as headphones, with MMDevAPI.
29 Added support for AmbDec config files, for custom ambisonic decoder
30 configurations. Version 3 files only.
32 Added backend-specific options to alsoft-config.
34 Added first-, second-, and third-order ambisonic output formats. Currently
35 only works with backends that don't rely on channel labels, like JACK,
38 Added a build option to embed the default HRTFs into the lib.
40 Added AmbDec presets to enable high-quality ambisonic decoding.
42 Added an AmbDec preset for 3D7.1 speaker setups.
44 Added documentation regarding Ambisonics, 3D7.1, AmbDec config files, and
45 the provided ambdec presets.
47 Added the ability for MMDevAPI to open devices given a Device ID or GUID
50 Added an option to the example apps to open a specific device.
52 Increased the maximum auxiliary send limit to 16 (up from 4). Requires
53 requesting them with the ALC_MAX_AUXILIARY_SENDS context creation
56 Increased the default auxiliary effect slot count to 64 (up from 4).
58 Reduced the default period count to 3 (down from 4).
60 Slightly improved automatic naming for enumerated HRTFs.
62 Improved B-Format decoding with HRTF output.
64 Improved internal property handling for better batching behavior.
66 Improved performance of certain filter uses.
68 Altered cone behavior for automatic auxiliary send gain and gainhf
69 management. Now better represents the energy the room receives.
71 Removed support for the AL_SOFT_buffer_samples and AL_SOFT_buffer_sub_data
72 extensions. Due to conflicts with AL_EXT_SOURCE_RADIUS.
76 Implemented device enumeration for OSSv4.
78 Fixed building on OSX.
80 Fixed building on non-Windows systems without POSIX-2008.
82 Fixed Dedicated Dialog and Dedicated LFE effect output.
84 Added a build option to override the share install dir.
86 Added a build option to static-link libgcc for MinGW.
90 Fixed building with JACK and without PulseAudio.
92 Fixed building on FreeBSD.
94 Fixed the ALSA backend's allow-resampler option.
96 Fixed handling of inexact ALSA period counts.
98 Altered device naming scheme on Windows backends to better match other
101 Updated the CoreAudio backend to use the AudioComponent API. This clears up
102 deprecation warnings for OSX 10.11, although requires OSX 10.6 or newer.
106 Implemented a JACK playback backend.
108 Implemented the AL_EXT_BFORMAT and AL_EXT_MULAW_BFORMAT extensions.
110 Implemented the ALC_SOFT_HRTF extension.
112 Implemented C, SSE3, and SSE4.1 based 4- and 8-point Sinc resamplers.
114 Implemented a C and SSE based band-limited Sinc resampler. This does 12- to
115 24-point Sinc resampling, and performs anti-aliasing.
117 Implemented B-Format output support for the wave file writer. This creates
118 FuMa-style first-order Ambisonics wave files (AMB format).
120 Implemented a stereo-mode config option for treating stereo modes as either
121 speakers or headphones.
123 Implemented per-device configuration options.
125 Fixed handling of PulseAudio and MMDevAPI devices that have identical
128 Fixed a potential lockup when stopping playback of suspended PulseAudio devices.
130 Fixed logging of Unicode characters on Windows.
132 Fixed 5.1 surround sound channels. By default it will now use the side
133 channels for the surround output. A configuration using rear channels is
136 Fixed the QSA backend potentially altering the capture format.
138 Fixed detecting MMDevAPI's default device.
140 Fixed returning the default capture device name.
142 Fixed mixing property calculations when deferring context updates.
144 Altered the behavior of alcSuspendContext and alcProcessContext to better
145 match certain Windows drivers.
147 Altered the panning algorithm, utilizing Ambisonics for better side and
148 back positioning cues with surround sound output.
150 Improved support for certain older Windows apps.
152 Improved the alffplay example to support surround sound streams.
154 Improved support for building as a sub-project.
156 Added an HRTF playback example.
158 Added a tone generator output test.
160 Added a toolchain to help with cross-compiling to Android.
164 Implemented EFX Chorus, Flanger, Distortion, Equalizer, and Compressor
167 Implemented high-pass and band-pass EFX filters.
169 Implemented the high-pass filter for the EAXReverb effect.
171 Implemented SSE2 and SSE4.1 linear resamplers.
173 Implemented Neon-enhanced non-HRTF mixers.
175 Implemented a QSA backend, for QNX.
177 Implemented the ALC_SOFT_pause_device, AL_SOFT_deferred_updates,
178 AL_SOFT_block_alignment, AL_SOFT_MSADPCM, and AL_SOFT_source_length
181 Fixed resetting mmdevapi backend devices.
183 Fixed clamping when converting 32-bit float samples to integer.
185 Fixed modulation range in the Modulator effect.
187 Several fixes for the OpenSL playback backend.
189 Fixed device specifier names that have Unicode characters on Windows.
191 Added support for filenames and paths with Unicode (UTF-8) characters on
194 Added support for alsoft.conf config files found in XDG Base Directory
195 Specification locations (XDG_CONFIG_DIRS and XDG_CONFIG_HOME, or their
196 defaults) on non-Windows systems.
198 Added a GUI configuration utility (requires Qt 4.8).
200 Added support for environment variable expansion in config options (not
201 keys or section names).
203 Added an example that uses SDL2 and ffmpeg.
205 Modified examples to use SDL_sound.
207 Modified CMake config option names for better sorting.
209 HRTF data sets specified in the hrtf_tables config option may now be
210 relative or absolute filenames.
212 Made the default HRTF data set an external file, and added a data set for
213 48khz playback in addition to 44.1khz.
215 Added support for C11 atomic methods.
217 Improved support for some non-GNU build systems.
221 Fixed a regression with retrieving the source's AL_GAIN property.
225 Fixed device enumeration with the OSS backend.
227 Reorganized internal mixing logic, so unneeded steps can potentially be
228 skipped for better performance.
230 Removed the lookup table for calculating the mixing pans. The panning is
231 now calculated directly for better precision.
233 Improved the panning of stereo source channels when using stereo output.
235 Improved source filter quality on send paths.
237 Added a config option to allow PulseAudio to move streams between devices.
239 The PulseAudio backend will now attempt to spawn a server by default.
241 Added a workaround for a DirectSound bug relating to float32 output.
243 Added SSE-based mixers, for HRTF and non-HRTF mixing.
245 Added support for the new AL_SOFT_source_latency extension.
247 Improved ALSA capture by avoiding an extra buffer when using sizes
248 supported by the underlying device.
250 Improved the makehrtf utility to support new options and input formats.
252 Modified the CFLAGS declared in the pkg-config file so the "AL/" portion of
253 the header includes can optionally be omitted.
255 Added a couple example code programs to show how to apply reverb, and
258 The configuration sample is now installed into the share/openal/ directory
259 instead of /etc/openal.
261 The configuration sample now gets installed by default.