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 Added correct retrieval of the executable's path on FreeBSD.
10 Added a config option to specify the dithering depth.
14 Implemented the AL_EXT_STEREO_ANGLES and AL_EXT_SOURCE_RADIUS extensions.
16 Implemented the AL_SOFT_gain_clamp_ex, AL_SOFT_source_resampler,
17 AL_SOFT_source_spatialize, and ALC_SOFT_output_limiter extensions.
19 Implemented 3D processing for some effects. Currently implemented for
20 Reverb, Compressor, Equalizer, and Ring Modulator.
22 Implemented 2-channel UHJ output encoding. This needs to be enabled with a
23 config option to be used.
25 Implemented dual-band processing for high-quality ambisonic decoding.
27 Implemented distance-compensation for surround sound output.
29 Implemented near-field emulation and compensation with ambisonic rendering.
30 Currently only applies when using the high-quality ambisonic decoder or
31 ambisonic output, with appropriate config options.
33 Implemented an output limiter to reduce the amount of distortion from
36 Implemented dithering for 8-bit and 16-bit output.
38 Implemented a config option to select a preferred HRTF.
40 Implemented a run-time check for NEON extensions using /proc/cpuinfo.
42 Implemented experimental capture support for the OpenSL backend.
44 Fixed building on compilers with NEON support but don't default to having
47 Fixed support for JACK on Windows.
49 Fixed starting a source while alcSuspendContext is in effect.
51 Fixed detection of headsets as headphones, with MMDevAPI.
53 Added support for AmbDec config files, for custom ambisonic decoder
54 configurations. Version 3 files only.
56 Added backend-specific options to alsoft-config.
58 Added first-, second-, and third-order ambisonic output formats. Currently
59 only works with backends that don't rely on channel labels, like JACK,
62 Added a build option to embed the default HRTFs into the lib.
64 Added AmbDec presets to enable high-quality ambisonic decoding.
66 Added an AmbDec preset for 3D7.1 speaker setups.
68 Added documentation regarding Ambisonics, 3D7.1, AmbDec config files, and
69 the provided ambdec presets.
71 Added the ability for MMDevAPI to open devices given a Device ID or GUID
74 Added an option to the example apps to open a specific device.
76 Increased the maximum auxiliary send limit to 16 (up from 4). Requires
77 requesting them with the ALC_MAX_AUXILIARY_SENDS context creation
80 Increased the default auxiliary effect slot count to 64 (up from 4).
82 Reduced the default period count to 3 (down from 4).
84 Slightly improved automatic naming for enumerated HRTFs.
86 Improved B-Format decoding with HRTF output.
88 Improved internal property handling for better batching behavior.
90 Improved performance of certain filter uses.
92 Removed support for the AL_SOFT_buffer_samples and AL_SOFT_buffer_sub_data
93 extensions. Due to conflicts with AL_EXT_SOURCE_RADIUS.
97 Implemented device enumeration for OSSv4.
99 Fixed building on OSX.
101 Fixed building on non-Windows systems without POSIX-2008.
103 Fixed Dedicated Dialog and Dedicated LFE effect output.
105 Added a build option to override the share install dir.
107 Added a build option to static-link libgcc for MinGW.
111 Fixed building with JACK and without PulseAudio.
113 Fixed building on FreeBSD.
115 Fixed the ALSA backend's allow-resampler option.
117 Fixed handling of inexact ALSA period counts.
119 Altered device naming scheme on Windows backends to better match other
122 Updated the CoreAudio backend to use the AudioComponent API. This clears up
123 deprecation warnings for OSX 10.11, although requires OSX 10.6 or newer.
127 Implemented a JACK playback backend.
129 Implemented the AL_EXT_BFORMAT and AL_EXT_MULAW_BFORMAT extensions.
131 Implemented the ALC_SOFT_HRTF extension.
133 Implemented C, SSE3, and SSE4.1 based 4- and 8-point Sinc resamplers.
135 Implemented a C and SSE based band-limited Sinc resampler. This does 12- to
136 24-point Sinc resampling, and performs anti-aliasing.
138 Implemented B-Format output support for the wave file writer. This creates
139 FuMa-style first-order Ambisonics wave files (AMB format).
141 Implemented a stereo-mode config option for treating stereo modes as either
142 speakers or headphones.
144 Implemented per-device configuration options.
146 Fixed handling of PulseAudio and MMDevAPI devices that have identical
149 Fixed a potential lockup when stopping playback of suspended PulseAudio devices.
151 Fixed logging of Unicode characters on Windows.
153 Fixed 5.1 surround sound channels. By default it will now use the side
154 channels for the surround output. A configuration using rear channels is
157 Fixed the QSA backend potentially altering the capture format.
159 Fixed detecting MMDevAPI's default device.
161 Fixed returning the default capture device name.
163 Fixed mixing property calculations when deferring context updates.
165 Altered the behavior of alcSuspendContext and alcProcessContext to better
166 match certain Windows drivers.
168 Altered the panning algorithm, utilizing Ambisonics for better side and
169 back positioning cues with surround sound output.
171 Improved support for certain older Windows apps.
173 Improved the alffplay example to support surround sound streams.
175 Improved support for building as a sub-project.
177 Added an HRTF playback example.
179 Added a tone generator output test.
181 Added a toolchain to help with cross-compiling to Android.
185 Implemented EFX Chorus, Flanger, Distortion, Equalizer, and Compressor
188 Implemented high-pass and band-pass EFX filters.
190 Implemented the high-pass filter for the EAXReverb effect.
192 Implemented SSE2 and SSE4.1 linear resamplers.
194 Implemented Neon-enhanced non-HRTF mixers.
196 Implemented a QSA backend, for QNX.
198 Implemented the ALC_SOFT_pause_device, AL_SOFT_deferred_updates,
199 AL_SOFT_block_alignment, AL_SOFT_MSADPCM, and AL_SOFT_source_length
202 Fixed resetting mmdevapi backend devices.
204 Fixed clamping when converting 32-bit float samples to integer.
206 Fixed modulation range in the Modulator effect.
208 Several fixes for the OpenSL playback backend.
210 Fixed device specifier names that have Unicode characters on Windows.
212 Added support for filenames and paths with Unicode (UTF-8) characters on
215 Added support for alsoft.conf config files found in XDG Base Directory
216 Specification locations (XDG_CONFIG_DIRS and XDG_CONFIG_HOME, or their
217 defaults) on non-Windows systems.
219 Added a GUI configuration utility (requires Qt 4.8).
221 Added support for environment variable expansion in config options (not
222 keys or section names).
224 Added an example that uses SDL2 and ffmpeg.
226 Modified examples to use SDL_sound.
228 Modified CMake config option names for better sorting.
230 HRTF data sets specified in the hrtf_tables config option may now be
231 relative or absolute filenames.
233 Made the default HRTF data set an external file, and added a data set for
234 48khz playback in addition to 44.1khz.
236 Added support for C11 atomic methods.
238 Improved support for some non-GNU build systems.
242 Fixed a regression with retrieving the source's AL_GAIN property.
246 Fixed device enumeration with the OSS backend.
248 Reorganized internal mixing logic, so unneeded steps can potentially be
249 skipped for better performance.
251 Removed the lookup table for calculating the mixing pans. The panning is
252 now calculated directly for better precision.
254 Improved the panning of stereo source channels when using stereo output.
256 Improved source filter quality on send paths.
258 Added a config option to allow PulseAudio to move streams between devices.
260 The PulseAudio backend will now attempt to spawn a server by default.
262 Added a workaround for a DirectSound bug relating to float32 output.
264 Added SSE-based mixers, for HRTF and non-HRTF mixing.
266 Added support for the new AL_SOFT_source_latency extension.
268 Improved ALSA capture by avoiding an extra buffer when using sizes
269 supported by the underlying device.
271 Improved the makehrtf utility to support new options and input formats.
273 Modified the CFLAGS declared in the pkg-config file so the "AL/" portion of
274 the header includes can optionally be omitted.
276 Added a couple example code programs to show how to apply reverb, and
279 The configuration sample is now installed into the share/openal/ directory
280 instead of /etc/openal.
282 The configuration sample now gets installed by default.