3 Fixed an issue where resuming a source might not restart playing it.
5 Fixed PulseAudio playback when the configured stream length is much less
6 than the requested length.
8 Fixed MMDevAPI capture with sample rates not matching the backing device.
10 Added correct retrieval of the executable's path on FreeBSD.
12 Added a config option to specify the dithering depth.
16 Implemented the AL_EXT_STEREO_ANGLES and AL_EXT_SOURCE_RADIUS extensions.
18 Implemented the AL_SOFT_gain_clamp_ex, AL_SOFT_source_resampler,
19 AL_SOFT_source_spatialize, and ALC_SOFT_output_limiter extensions.
21 Implemented 3D processing for some effects. Currently implemented for
22 Reverb, Compressor, Equalizer, and Ring Modulator.
24 Implemented 2-channel UHJ output encoding. This needs to be enabled with a
25 config option to be used.
27 Implemented dual-band processing for high-quality ambisonic decoding.
29 Implemented distance-compensation for surround sound output.
31 Implemented near-field emulation and compensation with ambisonic rendering.
32 Currently only applies when using the high-quality ambisonic decoder or
33 ambisonic output, with appropriate config options.
35 Implemented an output limiter to reduce the amount of distortion from
38 Implemented dithering for 8-bit and 16-bit output.
40 Implemented a config option to select a preferred HRTF.
42 Implemented a run-time check for NEON extensions using /proc/cpuinfo.
44 Implemented experimental capture support for the OpenSL backend.
46 Fixed building on compilers with NEON support but don't default to having
49 Fixed support for JACK on Windows.
51 Fixed starting a source while alcSuspendContext is in effect.
53 Fixed detection of headsets as headphones, with MMDevAPI.
55 Added support for AmbDec config files, for custom ambisonic decoder
56 configurations. Version 3 files only.
58 Added backend-specific options to alsoft-config.
60 Added first-, second-, and third-order ambisonic output formats. Currently
61 only works with backends that don't rely on channel labels, like JACK,
64 Added a build option to embed the default HRTFs into the lib.
66 Added AmbDec presets to enable high-quality ambisonic decoding.
68 Added an AmbDec preset for 3D7.1 speaker setups.
70 Added documentation regarding Ambisonics, 3D7.1, AmbDec config files, and
71 the provided ambdec presets.
73 Added the ability for MMDevAPI to open devices given a Device ID or GUID
76 Added an option to the example apps to open a specific device.
78 Increased the maximum auxiliary send limit to 16 (up from 4). Requires
79 requesting them with the ALC_MAX_AUXILIARY_SENDS context creation
82 Increased the default auxiliary effect slot count to 64 (up from 4).
84 Reduced the default period count to 3 (down from 4).
86 Slightly improved automatic naming for enumerated HRTFs.
88 Improved B-Format decoding with HRTF output.
90 Improved internal property handling for better batching behavior.
92 Improved performance of certain filter uses.
94 Removed support for the AL_SOFT_buffer_samples and AL_SOFT_buffer_sub_data
95 extensions. Due to conflicts with AL_EXT_SOURCE_RADIUS.
99 Implemented device enumeration for OSSv4.
101 Fixed building on OSX.
103 Fixed building on non-Windows systems without POSIX-2008.
105 Fixed Dedicated Dialog and Dedicated LFE effect output.
107 Added a build option to override the share install dir.
109 Added a build option to static-link libgcc for MinGW.
113 Fixed building with JACK and without PulseAudio.
115 Fixed building on FreeBSD.
117 Fixed the ALSA backend's allow-resampler option.
119 Fixed handling of inexact ALSA period counts.
121 Altered device naming scheme on Windows backends to better match other
124 Updated the CoreAudio backend to use the AudioComponent API. This clears up
125 deprecation warnings for OSX 10.11, although requires OSX 10.6 or newer.
129 Implemented a JACK playback backend.
131 Implemented the AL_EXT_BFORMAT and AL_EXT_MULAW_BFORMAT extensions.
133 Implemented the ALC_SOFT_HRTF extension.
135 Implemented C, SSE3, and SSE4.1 based 4- and 8-point Sinc resamplers.
137 Implemented a C and SSE based band-limited Sinc resampler. This does 12- to
138 24-point Sinc resampling, and performs anti-aliasing.
140 Implemented B-Format output support for the wave file writer. This creates
141 FuMa-style first-order Ambisonics wave files (AMB format).
143 Implemented a stereo-mode config option for treating stereo modes as either
144 speakers or headphones.
146 Implemented per-device configuration options.
148 Fixed handling of PulseAudio and MMDevAPI devices that have identical
151 Fixed a potential lockup when stopping playback of suspended PulseAudio devices.
153 Fixed logging of Unicode characters on Windows.
155 Fixed 5.1 surround sound channels. By default it will now use the side
156 channels for the surround output. A configuration using rear channels is
159 Fixed the QSA backend potentially altering the capture format.
161 Fixed detecting MMDevAPI's default device.
163 Fixed returning the default capture device name.
165 Fixed mixing property calculations when deferring context updates.
167 Altered the behavior of alcSuspendContext and alcProcessContext to better
168 match certain Windows drivers.
170 Altered the panning algorithm, utilizing Ambisonics for better side and
171 back positioning cues with surround sound output.
173 Improved support for certain older Windows apps.
175 Improved the alffplay example to support surround sound streams.
177 Improved support for building as a sub-project.
179 Added an HRTF playback example.
181 Added a tone generator output test.
183 Added a toolchain to help with cross-compiling to Android.
187 Implemented EFX Chorus, Flanger, Distortion, Equalizer, and Compressor
190 Implemented high-pass and band-pass EFX filters.
192 Implemented the high-pass filter for the EAXReverb effect.
194 Implemented SSE2 and SSE4.1 linear resamplers.
196 Implemented Neon-enhanced non-HRTF mixers.
198 Implemented a QSA backend, for QNX.
200 Implemented the ALC_SOFT_pause_device, AL_SOFT_deferred_updates,
201 AL_SOFT_block_alignment, AL_SOFT_MSADPCM, and AL_SOFT_source_length
204 Fixed resetting mmdevapi backend devices.
206 Fixed clamping when converting 32-bit float samples to integer.
208 Fixed modulation range in the Modulator effect.
210 Several fixes for the OpenSL playback backend.
212 Fixed device specifier names that have Unicode characters on Windows.
214 Added support for filenames and paths with Unicode (UTF-8) characters on
217 Added support for alsoft.conf config files found in XDG Base Directory
218 Specification locations (XDG_CONFIG_DIRS and XDG_CONFIG_HOME, or their
219 defaults) on non-Windows systems.
221 Added a GUI configuration utility (requires Qt 4.8).
223 Added support for environment variable expansion in config options (not
224 keys or section names).
226 Added an example that uses SDL2 and ffmpeg.
228 Modified examples to use SDL_sound.
230 Modified CMake config option names for better sorting.
232 HRTF data sets specified in the hrtf_tables config option may now be
233 relative or absolute filenames.
235 Made the default HRTF data set an external file, and added a data set for
236 48khz playback in addition to 44.1khz.
238 Added support for C11 atomic methods.
240 Improved support for some non-GNU build systems.
244 Fixed a regression with retrieving the source's AL_GAIN property.
248 Fixed device enumeration with the OSS backend.
250 Reorganized internal mixing logic, so unneeded steps can potentially be
251 skipped for better performance.
253 Removed the lookup table for calculating the mixing pans. The panning is
254 now calculated directly for better precision.
256 Improved the panning of stereo source channels when using stereo output.
258 Improved source filter quality on send paths.
260 Added a config option to allow PulseAudio to move streams between devices.
262 The PulseAudio backend will now attempt to spawn a server by default.
264 Added a workaround for a DirectSound bug relating to float32 output.
266 Added SSE-based mixers, for HRTF and non-HRTF mixing.
268 Added support for the new AL_SOFT_source_latency extension.
270 Improved ALSA capture by avoiding an extra buffer when using sizes
271 supported by the underlying device.
273 Improved the makehrtf utility to support new options and input formats.
275 Modified the CFLAGS declared in the pkg-config file so the "AL/" portion of
276 the header includes can optionally be omitted.
278 Added a couple example code programs to show how to apply reverb, and
281 The configuration sample is now installed into the share/openal/ directory
282 instead of /etc/openal.
284 The configuration sample now gets installed by default.