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 Fixed int32 output for the Wave Writer.
12 Added correct retrieval of the executable's path on FreeBSD.
14 Added a config option to specify the dithering depth.
16 Added a 5.1 decoder preset that excludes front-center output.
20 Implemented the AL_EXT_STEREO_ANGLES and AL_EXT_SOURCE_RADIUS extensions.
22 Implemented the AL_SOFT_gain_clamp_ex, AL_SOFT_source_resampler,
23 AL_SOFT_source_spatialize, and ALC_SOFT_output_limiter extensions.
25 Implemented 3D processing for some effects. Currently implemented for
26 Reverb, Compressor, Equalizer, and Ring Modulator.
28 Implemented 2-channel UHJ output encoding. This needs to be enabled with a
29 config option to be used.
31 Implemented dual-band processing for high-quality ambisonic decoding.
33 Implemented distance-compensation for surround sound output.
35 Implemented near-field emulation and compensation with ambisonic rendering.
36 Currently only applies when using the high-quality ambisonic decoder or
37 ambisonic output, with appropriate config options.
39 Implemented an output limiter to reduce the amount of distortion from
42 Implemented dithering for 8-bit and 16-bit output.
44 Implemented a config option to select a preferred HRTF.
46 Implemented a run-time check for NEON extensions using /proc/cpuinfo.
48 Implemented experimental capture support for the OpenSL backend.
50 Fixed building on compilers with NEON support but don't default to having
53 Fixed support for JACK on Windows.
55 Fixed starting a source while alcSuspendContext is in effect.
57 Fixed detection of headsets as headphones, with MMDevAPI.
59 Added support for AmbDec config files, for custom ambisonic decoder
60 configurations. Version 3 files only.
62 Added backend-specific options to alsoft-config.
64 Added first-, second-, and third-order ambisonic output formats. Currently
65 only works with backends that don't rely on channel labels, like JACK,
68 Added a build option to embed the default HRTFs into the lib.
70 Added AmbDec presets to enable high-quality ambisonic decoding.
72 Added an AmbDec preset for 3D7.1 speaker setups.
74 Added documentation regarding Ambisonics, 3D7.1, AmbDec config files, and
75 the provided ambdec presets.
77 Added the ability for MMDevAPI to open devices given a Device ID or GUID
80 Added an option to the example apps to open a specific device.
82 Increased the maximum auxiliary send limit to 16 (up from 4). Requires
83 requesting them with the ALC_MAX_AUXILIARY_SENDS context creation
86 Increased the default auxiliary effect slot count to 64 (up from 4).
88 Reduced the default period count to 3 (down from 4).
90 Slightly improved automatic naming for enumerated HRTFs.
92 Improved B-Format decoding with HRTF output.
94 Improved internal property handling for better batching behavior.
96 Improved performance of certain filter uses.
98 Removed support for the AL_SOFT_buffer_samples and AL_SOFT_buffer_sub_data
99 extensions. Due to conflicts with AL_EXT_SOURCE_RADIUS.
103 Implemented device enumeration for OSSv4.
105 Fixed building on OSX.
107 Fixed building on non-Windows systems without POSIX-2008.
109 Fixed Dedicated Dialog and Dedicated LFE effect output.
111 Added a build option to override the share install dir.
113 Added a build option to static-link libgcc for MinGW.
117 Fixed building with JACK and without PulseAudio.
119 Fixed building on FreeBSD.
121 Fixed the ALSA backend's allow-resampler option.
123 Fixed handling of inexact ALSA period counts.
125 Altered device naming scheme on Windows backends to better match other
128 Updated the CoreAudio backend to use the AudioComponent API. This clears up
129 deprecation warnings for OSX 10.11, although requires OSX 10.6 or newer.
133 Implemented a JACK playback backend.
135 Implemented the AL_EXT_BFORMAT and AL_EXT_MULAW_BFORMAT extensions.
137 Implemented the ALC_SOFT_HRTF extension.
139 Implemented C, SSE3, and SSE4.1 based 4- and 8-point Sinc resamplers.
141 Implemented a C and SSE based band-limited Sinc resampler. This does 12- to
142 24-point Sinc resampling, and performs anti-aliasing.
144 Implemented B-Format output support for the wave file writer. This creates
145 FuMa-style first-order Ambisonics wave files (AMB format).
147 Implemented a stereo-mode config option for treating stereo modes as either
148 speakers or headphones.
150 Implemented per-device configuration options.
152 Fixed handling of PulseAudio and MMDevAPI devices that have identical
155 Fixed a potential lockup when stopping playback of suspended PulseAudio devices.
157 Fixed logging of Unicode characters on Windows.
159 Fixed 5.1 surround sound channels. By default it will now use the side
160 channels for the surround output. A configuration using rear channels is
163 Fixed the QSA backend potentially altering the capture format.
165 Fixed detecting MMDevAPI's default device.
167 Fixed returning the default capture device name.
169 Fixed mixing property calculations when deferring context updates.
171 Altered the behavior of alcSuspendContext and alcProcessContext to better
172 match certain Windows drivers.
174 Altered the panning algorithm, utilizing Ambisonics for better side and
175 back positioning cues with surround sound output.
177 Improved support for certain older Windows apps.
179 Improved the alffplay example to support surround sound streams.
181 Improved support for building as a sub-project.
183 Added an HRTF playback example.
185 Added a tone generator output test.
187 Added a toolchain to help with cross-compiling to Android.
191 Implemented EFX Chorus, Flanger, Distortion, Equalizer, and Compressor
194 Implemented high-pass and band-pass EFX filters.
196 Implemented the high-pass filter for the EAXReverb effect.
198 Implemented SSE2 and SSE4.1 linear resamplers.
200 Implemented Neon-enhanced non-HRTF mixers.
202 Implemented a QSA backend, for QNX.
204 Implemented the ALC_SOFT_pause_device, AL_SOFT_deferred_updates,
205 AL_SOFT_block_alignment, AL_SOFT_MSADPCM, and AL_SOFT_source_length
208 Fixed resetting mmdevapi backend devices.
210 Fixed clamping when converting 32-bit float samples to integer.
212 Fixed modulation range in the Modulator effect.
214 Several fixes for the OpenSL playback backend.
216 Fixed device specifier names that have Unicode characters on Windows.
218 Added support for filenames and paths with Unicode (UTF-8) characters on
221 Added support for alsoft.conf config files found in XDG Base Directory
222 Specification locations (XDG_CONFIG_DIRS and XDG_CONFIG_HOME, or their
223 defaults) on non-Windows systems.
225 Added a GUI configuration utility (requires Qt 4.8).
227 Added support for environment variable expansion in config options (not
228 keys or section names).
230 Added an example that uses SDL2 and ffmpeg.
232 Modified examples to use SDL_sound.
234 Modified CMake config option names for better sorting.
236 HRTF data sets specified in the hrtf_tables config option may now be
237 relative or absolute filenames.
239 Made the default HRTF data set an external file, and added a data set for
240 48khz playback in addition to 44.1khz.
242 Added support for C11 atomic methods.
244 Improved support for some non-GNU build systems.
248 Fixed a regression with retrieving the source's AL_GAIN property.
252 Fixed device enumeration with the OSS backend.
254 Reorganized internal mixing logic, so unneeded steps can potentially be
255 skipped for better performance.
257 Removed the lookup table for calculating the mixing pans. The panning is
258 now calculated directly for better precision.
260 Improved the panning of stereo source channels when using stereo output.
262 Improved source filter quality on send paths.
264 Added a config option to allow PulseAudio to move streams between devices.
266 The PulseAudio backend will now attempt to spawn a server by default.
268 Added a workaround for a DirectSound bug relating to float32 output.
270 Added SSE-based mixers, for HRTF and non-HRTF mixing.
272 Added support for the new AL_SOFT_source_latency extension.
274 Improved ALSA capture by avoiding an extra buffer when using sizes
275 supported by the underlying device.
277 Improved the makehrtf utility to support new options and input formats.
279 Modified the CFLAGS declared in the pkg-config file so the "AL/" portion of
280 the header includes can optionally be omitted.
282 Added a couple example code programs to show how to apply reverb, and
285 The configuration sample is now installed into the share/openal/ directory
286 instead of /etc/openal.
288 The configuration sample now gets installed by default.