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. This needs to be enabled with a
11 config option to be used.
13 Implemented dual-band processing for high-quality ambisonic decoding.
15 Implemented distance-compensation for surround sound output.
17 Implemented near-field emulation and compensation with ambisonic rendering.
18 Currently only applies when using the high-quality ambisonic decoder or
19 ambisonic output, with appropriate config options.
21 Implemented a config option to select a preferred HRTF.
23 Implemented a run-time check for NEON extensions using /proc/cpuinfo.
25 Fixed building on compilers with NEON support but don't default to having
28 Fixed support for JACK on Windows.
30 Fixed starting a source while alcSuspendContext is in effect.
32 Fixed detection of headsets as headphones, with MMDevAPI.
34 Added support for AmbDec config files, for custom ambisonic decoder
35 configurations. Version 3 files only.
37 Added backend-specific options to alsoft-config.
39 Added first-, second-, and third-order ambisonic output formats. Currently
40 only works with backends that don't rely on channel labels, like JACK,
43 Added a build option to embed the default HRTFs into the lib.
45 Added AmbDec presets to enable high-quality ambisonic decoding.
47 Added an AmbDec preset for 3D7.1 speaker setups.
49 Added documentation regarding Ambisonics, 3D7.1, AmbDec config files, and
50 the provided ambdec presets.
52 Added the ability for MMDevAPI to open devices given a Device ID or GUID
55 Added an option to the example apps to open a specific device.
57 Increased the maximum auxiliary send limit to 16 (up from 4). Requires
58 requesting them with the ALC_MAX_AUXILIARY_SENDS context creation
61 Increased the default auxiliary effect slot count to 64 (up from 4).
63 Reduced the default period count to 3 (down from 4).
65 Slightly improved automatic naming for enumerated HRTFs.
67 Improved B-Format decoding with HRTF output.
69 Improved internal property handling for better batching behavior.
71 Improved performance of certain filter uses.
73 Altered cone behavior for automatic auxiliary send gain and gainhf
74 management. Now better represents the energy the room receives.
76 Removed support for the AL_SOFT_buffer_samples and AL_SOFT_buffer_sub_data
77 extensions. Due to conflicts with AL_EXT_SOURCE_RADIUS.
81 Implemented device enumeration for OSSv4.
83 Fixed building on OSX.
85 Fixed building on non-Windows systems without POSIX-2008.
87 Fixed Dedicated Dialog and Dedicated LFE effect output.
89 Added a build option to override the share install dir.
91 Added a build option to static-link libgcc for MinGW.
95 Fixed building with JACK and without PulseAudio.
97 Fixed building on FreeBSD.
99 Fixed the ALSA backend's allow-resampler option.
101 Fixed handling of inexact ALSA period counts.
103 Altered device naming scheme on Windows backends to better match other
106 Updated the CoreAudio backend to use the AudioComponent API. This clears up
107 deprecation warnings for OSX 10.11, although requires OSX 10.6 or newer.
111 Implemented a JACK playback backend.
113 Implemented the AL_EXT_BFORMAT and AL_EXT_MULAW_BFORMAT extensions.
115 Implemented the ALC_SOFT_HRTF extension.
117 Implemented C, SSE3, and SSE4.1 based 4- and 8-point Sinc resamplers.
119 Implemented a C and SSE based band-limited Sinc resampler. This does 12- to
120 24-point Sinc resampling, and performs anti-aliasing.
122 Implemented B-Format output support for the wave file writer. This creates
123 FuMa-style first-order Ambisonics wave files (AMB format).
125 Implemented a stereo-mode config option for treating stereo modes as either
126 speakers or headphones.
128 Implemented per-device configuration options.
130 Fixed handling of PulseAudio and MMDevAPI devices that have identical
133 Fixed a potential lockup when stopping playback of suspended PulseAudio devices.
135 Fixed logging of Unicode characters on Windows.
137 Fixed 5.1 surround sound channels. By default it will now use the side
138 channels for the surround output. A configuration using rear channels is
141 Fixed the QSA backend potentially altering the capture format.
143 Fixed detecting MMDevAPI's default device.
145 Fixed returning the default capture device name.
147 Fixed mixing property calculations when deferring context updates.
149 Altered the behavior of alcSuspendContext and alcProcessContext to better
150 match certain Windows drivers.
152 Altered the panning algorithm, utilizing Ambisonics for better side and
153 back positioning cues with surround sound output.
155 Improved support for certain older Windows apps.
157 Improved the alffplay example to support surround sound streams.
159 Improved support for building as a sub-project.
161 Added an HRTF playback example.
163 Added a tone generator output test.
165 Added a toolchain to help with cross-compiling to Android.
169 Implemented EFX Chorus, Flanger, Distortion, Equalizer, and Compressor
172 Implemented high-pass and band-pass EFX filters.
174 Implemented the high-pass filter for the EAXReverb effect.
176 Implemented SSE2 and SSE4.1 linear resamplers.
178 Implemented Neon-enhanced non-HRTF mixers.
180 Implemented a QSA backend, for QNX.
182 Implemented the ALC_SOFT_pause_device, AL_SOFT_deferred_updates,
183 AL_SOFT_block_alignment, AL_SOFT_MSADPCM, and AL_SOFT_source_length
186 Fixed resetting mmdevapi backend devices.
188 Fixed clamping when converting 32-bit float samples to integer.
190 Fixed modulation range in the Modulator effect.
192 Several fixes for the OpenSL playback backend.
194 Fixed device specifier names that have Unicode characters on Windows.
196 Added support for filenames and paths with Unicode (UTF-8) characters on
199 Added support for alsoft.conf config files found in XDG Base Directory
200 Specification locations (XDG_CONFIG_DIRS and XDG_CONFIG_HOME, or their
201 defaults) on non-Windows systems.
203 Added a GUI configuration utility (requires Qt 4.8).
205 Added support for environment variable expansion in config options (not
206 keys or section names).
208 Added an example that uses SDL2 and ffmpeg.
210 Modified examples to use SDL_sound.
212 Modified CMake config option names for better sorting.
214 HRTF data sets specified in the hrtf_tables config option may now be
215 relative or absolute filenames.
217 Made the default HRTF data set an external file, and added a data set for
218 48khz playback in addition to 44.1khz.
220 Added support for C11 atomic methods.
222 Improved support for some non-GNU build systems.
226 Fixed a regression with retrieving the source's AL_GAIN property.
230 Fixed device enumeration with the OSS backend.
232 Reorganized internal mixing logic, so unneeded steps can potentially be
233 skipped for better performance.
235 Removed the lookup table for calculating the mixing pans. The panning is
236 now calculated directly for better precision.
238 Improved the panning of stereo source channels when using stereo output.
240 Improved source filter quality on send paths.
242 Added a config option to allow PulseAudio to move streams between devices.
244 The PulseAudio backend will now attempt to spawn a server by default.
246 Added a workaround for a DirectSound bug relating to float32 output.
248 Added SSE-based mixers, for HRTF and non-HRTF mixing.
250 Added support for the new AL_SOFT_source_latency extension.
252 Improved ALSA capture by avoiding an extra buffer when using sizes
253 supported by the underlying device.
255 Improved the makehrtf utility to support new options and input formats.
257 Modified the CFLAGS declared in the pkg-config file so the "AL/" portion of
258 the header includes can optionally be omitted.
260 Added a couple example code programs to show how to apply reverb, and
263 The configuration sample is now installed into the share/openal/ directory
264 instead of /etc/openal.
266 The configuration sample now gets installed by default.