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.
12 Implemented the AL_EXT_STEREO_ANGLES and AL_EXT_SOURCE_RADIUS extensions.
14 Implemented the AL_SOFT_gain_clamp_ex, AL_SOFT_source_resampler,
15 AL_SOFT_source_spatialize, and ALC_SOFT_output_limiter extensions.
17 Implemented 3D processing for some effects. Currently implemented for
18 Reverb, Compressor, Equalizer, and Ring Modulator.
20 Implemented 2-channel UHJ output encoding. This needs to be enabled with a
21 config option to be used.
23 Implemented dual-band processing for high-quality ambisonic decoding.
25 Implemented distance-compensation for surround sound output.
27 Implemented near-field emulation and compensation with ambisonic rendering.
28 Currently only applies when using the high-quality ambisonic decoder or
29 ambisonic output, with appropriate config options.
31 Implemented an output limiter to reduce the amount of distortion from
34 Implemented dithering for 8-bit and 16-bit output.
36 Implemented a config option to select a preferred HRTF.
38 Implemented a run-time check for NEON extensions using /proc/cpuinfo.
40 Implemented experimental capture support for the OpenSL backend.
42 Fixed building on compilers with NEON support but don't default to having
45 Fixed support for JACK on Windows.
47 Fixed starting a source while alcSuspendContext is in effect.
49 Fixed detection of headsets as headphones, with MMDevAPI.
51 Added support for AmbDec config files, for custom ambisonic decoder
52 configurations. Version 3 files only.
54 Added backend-specific options to alsoft-config.
56 Added first-, second-, and third-order ambisonic output formats. Currently
57 only works with backends that don't rely on channel labels, like JACK,
60 Added a build option to embed the default HRTFs into the lib.
62 Added AmbDec presets to enable high-quality ambisonic decoding.
64 Added an AmbDec preset for 3D7.1 speaker setups.
66 Added documentation regarding Ambisonics, 3D7.1, AmbDec config files, and
67 the provided ambdec presets.
69 Added the ability for MMDevAPI to open devices given a Device ID or GUID
72 Added an option to the example apps to open a specific device.
74 Increased the maximum auxiliary send limit to 16 (up from 4). Requires
75 requesting them with the ALC_MAX_AUXILIARY_SENDS context creation
78 Increased the default auxiliary effect slot count to 64 (up from 4).
80 Reduced the default period count to 3 (down from 4).
82 Slightly improved automatic naming for enumerated HRTFs.
84 Improved B-Format decoding with HRTF output.
86 Improved internal property handling for better batching behavior.
88 Improved performance of certain filter uses.
90 Removed support for the AL_SOFT_buffer_samples and AL_SOFT_buffer_sub_data
91 extensions. Due to conflicts with AL_EXT_SOURCE_RADIUS.
95 Implemented device enumeration for OSSv4.
97 Fixed building on OSX.
99 Fixed building on non-Windows systems without POSIX-2008.
101 Fixed Dedicated Dialog and Dedicated LFE effect output.
103 Added a build option to override the share install dir.
105 Added a build option to static-link libgcc for MinGW.
109 Fixed building with JACK and without PulseAudio.
111 Fixed building on FreeBSD.
113 Fixed the ALSA backend's allow-resampler option.
115 Fixed handling of inexact ALSA period counts.
117 Altered device naming scheme on Windows backends to better match other
120 Updated the CoreAudio backend to use the AudioComponent API. This clears up
121 deprecation warnings for OSX 10.11, although requires OSX 10.6 or newer.
125 Implemented a JACK playback backend.
127 Implemented the AL_EXT_BFORMAT and AL_EXT_MULAW_BFORMAT extensions.
129 Implemented the ALC_SOFT_HRTF extension.
131 Implemented C, SSE3, and SSE4.1 based 4- and 8-point Sinc resamplers.
133 Implemented a C and SSE based band-limited Sinc resampler. This does 12- to
134 24-point Sinc resampling, and performs anti-aliasing.
136 Implemented B-Format output support for the wave file writer. This creates
137 FuMa-style first-order Ambisonics wave files (AMB format).
139 Implemented a stereo-mode config option for treating stereo modes as either
140 speakers or headphones.
142 Implemented per-device configuration options.
144 Fixed handling of PulseAudio and MMDevAPI devices that have identical
147 Fixed a potential lockup when stopping playback of suspended PulseAudio devices.
149 Fixed logging of Unicode characters on Windows.
151 Fixed 5.1 surround sound channels. By default it will now use the side
152 channels for the surround output. A configuration using rear channels is
155 Fixed the QSA backend potentially altering the capture format.
157 Fixed detecting MMDevAPI's default device.
159 Fixed returning the default capture device name.
161 Fixed mixing property calculations when deferring context updates.
163 Altered the behavior of alcSuspendContext and alcProcessContext to better
164 match certain Windows drivers.
166 Altered the panning algorithm, utilizing Ambisonics for better side and
167 back positioning cues with surround sound output.
169 Improved support for certain older Windows apps.
171 Improved the alffplay example to support surround sound streams.
173 Improved support for building as a sub-project.
175 Added an HRTF playback example.
177 Added a tone generator output test.
179 Added a toolchain to help with cross-compiling to Android.
183 Implemented EFX Chorus, Flanger, Distortion, Equalizer, and Compressor
186 Implemented high-pass and band-pass EFX filters.
188 Implemented the high-pass filter for the EAXReverb effect.
190 Implemented SSE2 and SSE4.1 linear resamplers.
192 Implemented Neon-enhanced non-HRTF mixers.
194 Implemented a QSA backend, for QNX.
196 Implemented the ALC_SOFT_pause_device, AL_SOFT_deferred_updates,
197 AL_SOFT_block_alignment, AL_SOFT_MSADPCM, and AL_SOFT_source_length
200 Fixed resetting mmdevapi backend devices.
202 Fixed clamping when converting 32-bit float samples to integer.
204 Fixed modulation range in the Modulator effect.
206 Several fixes for the OpenSL playback backend.
208 Fixed device specifier names that have Unicode characters on Windows.
210 Added support for filenames and paths with Unicode (UTF-8) characters on
213 Added support for alsoft.conf config files found in XDG Base Directory
214 Specification locations (XDG_CONFIG_DIRS and XDG_CONFIG_HOME, or their
215 defaults) on non-Windows systems.
217 Added a GUI configuration utility (requires Qt 4.8).
219 Added support for environment variable expansion in config options (not
220 keys or section names).
222 Added an example that uses SDL2 and ffmpeg.
224 Modified examples to use SDL_sound.
226 Modified CMake config option names for better sorting.
228 HRTF data sets specified in the hrtf_tables config option may now be
229 relative or absolute filenames.
231 Made the default HRTF data set an external file, and added a data set for
232 48khz playback in addition to 44.1khz.
234 Added support for C11 atomic methods.
236 Improved support for some non-GNU build systems.
240 Fixed a regression with retrieving the source's AL_GAIN property.
244 Fixed device enumeration with the OSS backend.
246 Reorganized internal mixing logic, so unneeded steps can potentially be
247 skipped for better performance.
249 Removed the lookup table for calculating the mixing pans. The panning is
250 now calculated directly for better precision.
252 Improved the panning of stereo source channels when using stereo output.
254 Improved source filter quality on send paths.
256 Added a config option to allow PulseAudio to move streams between devices.
258 The PulseAudio backend will now attempt to spawn a server by default.
260 Added a workaround for a DirectSound bug relating to float32 output.
262 Added SSE-based mixers, for HRTF and non-HRTF mixing.
264 Added support for the new AL_SOFT_source_latency extension.
266 Improved ALSA capture by avoiding an extra buffer when using sizes
267 supported by the underlying device.
269 Improved the makehrtf utility to support new options and input formats.
271 Modified the CFLAGS declared in the pkg-config file so the "AL/" portion of
272 the header includes can optionally be omitted.
274 Added a couple example code programs to show how to apply reverb, and
277 The configuration sample is now installed into the share/openal/ directory
278 instead of /etc/openal.
280 The configuration sample now gets installed by default.