3 Implemented the ALC_SOFT_device_clock extension.
5 Implemented the Pitch Shifter, Frequency Shifter, and Autowah effects.
7 Fixed compiling on FreeBSD systems that use freebsd-lib 9.1.
9 Fixed compiling on NetBSD.
11 Fixed the reverb effect's density scale and panning parameters.
13 Fixed use of the WASAPI backend with certain games, which caused odd COM
14 initialization errors.
16 Increased the number of virtual channels for decoding Ambisonics to HRTF
19 Replaced the 4-point Sinc resampler with a more efficient cubic resampler.
21 Renamed the MMDevAPI backend to WASAPI.
23 Added support fot 24-bit, dual-ear HRTF data sets. The built-in data set
24 has been updated to 24-bit.
26 Added a 24- to 48-point band-limited Sinc resampler.
28 Added an SDL2 playback backend. Disabled by default to avoid a dependency
31 Improved the performance and quality of the Chorus and Flanger effects.
33 Improved the efficiency of the band-limited Sinc resampler.
35 Improved the Sinc resampler's transition band to avoid over-attenuating
38 Improved the performance of some filter operations.
40 Improved the efficiency of object ID lookups.
42 Improved the efficienty of internal voice/source synchronization.
44 Improved AL call error logging with contextualized messages.
46 Removed the reverb effect's modulation stage. Due to the lack of reference
47 for its intended behavior and strength.
51 Fixed resetting the FPU rounding mode after certain function calls on
54 Fixed use of SSE intrinsics when building with Clang on Windows.
56 Fixed a crash with the JACK backend when using JACK1.
58 Fixed use of pthread_setnane_np on NetBSD.
60 Fixed building on FreeBSD with an older freebsd-lib.
62 OSS now links with libossaudio if found at build time (for NetBSD).
66 Fixed an issue where resuming a source might not restart playing it.
68 Fixed PulseAudio playback when the configured stream length is much less
69 than the requested length.
71 Fixed MMDevAPI capture with sample rates not matching the backing device.
73 Fixed int32 output for the Wave Writer.
75 Fixed enumeration of OSS devices that are missing device files.
77 Added correct retrieval of the executable's path on FreeBSD.
79 Added a config option to specify the dithering depth.
81 Added a 5.1 decoder preset that excludes front-center output.
85 Implemented the AL_EXT_STEREO_ANGLES and AL_EXT_SOURCE_RADIUS extensions.
87 Implemented the AL_SOFT_gain_clamp_ex, AL_SOFT_source_resampler,
88 AL_SOFT_source_spatialize, and ALC_SOFT_output_limiter extensions.
90 Implemented 3D processing for some effects. Currently implemented for
91 Reverb, Compressor, Equalizer, and Ring Modulator.
93 Implemented 2-channel UHJ output encoding. This needs to be enabled with a
94 config option to be used.
96 Implemented dual-band processing for high-quality ambisonic decoding.
98 Implemented distance-compensation for surround sound output.
100 Implemented near-field emulation and compensation with ambisonic rendering.
101 Currently only applies when using the high-quality ambisonic decoder or
102 ambisonic output, with appropriate config options.
104 Implemented an output limiter to reduce the amount of distortion from
107 Implemented dithering for 8-bit and 16-bit output.
109 Implemented a config option to select a preferred HRTF.
111 Implemented a run-time check for NEON extensions using /proc/cpuinfo.
113 Implemented experimental capture support for the OpenSL backend.
115 Fixed building on compilers with NEON support but don't default to having
118 Fixed support for JACK on Windows.
120 Fixed starting a source while alcSuspendContext is in effect.
122 Fixed detection of headsets as headphones, with MMDevAPI.
124 Added support for AmbDec config files, for custom ambisonic decoder
125 configurations. Version 3 files only.
127 Added backend-specific options to alsoft-config.
129 Added first-, second-, and third-order ambisonic output formats. Currently
130 only works with backends that don't rely on channel labels, like JACK,
133 Added a build option to embed the default HRTFs into the lib.
135 Added AmbDec presets to enable high-quality ambisonic decoding.
137 Added an AmbDec preset for 3D7.1 speaker setups.
139 Added documentation regarding Ambisonics, 3D7.1, AmbDec config files, and
140 the provided ambdec presets.
142 Added the ability for MMDevAPI to open devices given a Device ID or GUID
145 Added an option to the example apps to open a specific device.
147 Increased the maximum auxiliary send limit to 16 (up from 4). Requires
148 requesting them with the ALC_MAX_AUXILIARY_SENDS context creation
151 Increased the default auxiliary effect slot count to 64 (up from 4).
153 Reduced the default period count to 3 (down from 4).
155 Slightly improved automatic naming for enumerated HRTFs.
157 Improved B-Format decoding with HRTF output.
159 Improved internal property handling for better batching behavior.
161 Improved performance of certain filter uses.
163 Removed support for the AL_SOFT_buffer_samples and AL_SOFT_buffer_sub_data
164 extensions. Due to conflicts with AL_EXT_SOURCE_RADIUS.
168 Implemented device enumeration for OSSv4.
170 Fixed building on OSX.
172 Fixed building on non-Windows systems without POSIX-2008.
174 Fixed Dedicated Dialog and Dedicated LFE effect output.
176 Added a build option to override the share install dir.
178 Added a build option to static-link libgcc for MinGW.
182 Fixed building with JACK and without PulseAudio.
184 Fixed building on FreeBSD.
186 Fixed the ALSA backend's allow-resampler option.
188 Fixed handling of inexact ALSA period counts.
190 Altered device naming scheme on Windows backends to better match other
193 Updated the CoreAudio backend to use the AudioComponent API. This clears up
194 deprecation warnings for OSX 10.11, although requires OSX 10.6 or newer.
198 Implemented a JACK playback backend.
200 Implemented the AL_EXT_BFORMAT and AL_EXT_MULAW_BFORMAT extensions.
202 Implemented the ALC_SOFT_HRTF extension.
204 Implemented C, SSE3, and SSE4.1 based 4- and 8-point Sinc resamplers.
206 Implemented a C and SSE based band-limited Sinc resampler. This does 12- to
207 24-point Sinc resampling, and performs anti-aliasing.
209 Implemented B-Format output support for the wave file writer. This creates
210 FuMa-style first-order Ambisonics wave files (AMB format).
212 Implemented a stereo-mode config option for treating stereo modes as either
213 speakers or headphones.
215 Implemented per-device configuration options.
217 Fixed handling of PulseAudio and MMDevAPI devices that have identical
220 Fixed a potential lockup when stopping playback of suspended PulseAudio devices.
222 Fixed logging of Unicode characters on Windows.
224 Fixed 5.1 surround sound channels. By default it will now use the side
225 channels for the surround output. A configuration using rear channels is
228 Fixed the QSA backend potentially altering the capture format.
230 Fixed detecting MMDevAPI's default device.
232 Fixed returning the default capture device name.
234 Fixed mixing property calculations when deferring context updates.
236 Altered the behavior of alcSuspendContext and alcProcessContext to better
237 match certain Windows drivers.
239 Altered the panning algorithm, utilizing Ambisonics for better side and
240 back positioning cues with surround sound output.
242 Improved support for certain older Windows apps.
244 Improved the alffplay example to support surround sound streams.
246 Improved support for building as a sub-project.
248 Added an HRTF playback example.
250 Added a tone generator output test.
252 Added a toolchain to help with cross-compiling to Android.
256 Implemented EFX Chorus, Flanger, Distortion, Equalizer, and Compressor
259 Implemented high-pass and band-pass EFX filters.
261 Implemented the high-pass filter for the EAXReverb effect.
263 Implemented SSE2 and SSE4.1 linear resamplers.
265 Implemented Neon-enhanced non-HRTF mixers.
267 Implemented a QSA backend, for QNX.
269 Implemented the ALC_SOFT_pause_device, AL_SOFT_deferred_updates,
270 AL_SOFT_block_alignment, AL_SOFT_MSADPCM, and AL_SOFT_source_length
273 Fixed resetting mmdevapi backend devices.
275 Fixed clamping when converting 32-bit float samples to integer.
277 Fixed modulation range in the Modulator effect.
279 Several fixes for the OpenSL playback backend.
281 Fixed device specifier names that have Unicode characters on Windows.
283 Added support for filenames and paths with Unicode (UTF-8) characters on
286 Added support for alsoft.conf config files found in XDG Base Directory
287 Specification locations (XDG_CONFIG_DIRS and XDG_CONFIG_HOME, or their
288 defaults) on non-Windows systems.
290 Added a GUI configuration utility (requires Qt 4.8).
292 Added support for environment variable expansion in config options (not
293 keys or section names).
295 Added an example that uses SDL2 and ffmpeg.
297 Modified examples to use SDL_sound.
299 Modified CMake config option names for better sorting.
301 HRTF data sets specified in the hrtf_tables config option may now be
302 relative or absolute filenames.
304 Made the default HRTF data set an external file, and added a data set for
305 48khz playback in addition to 44.1khz.
307 Added support for C11 atomic methods.
309 Improved support for some non-GNU build systems.
313 Fixed a regression with retrieving the source's AL_GAIN property.
317 Fixed device enumeration with the OSS backend.
319 Reorganized internal mixing logic, so unneeded steps can potentially be
320 skipped for better performance.
322 Removed the lookup table for calculating the mixing pans. The panning is
323 now calculated directly for better precision.
325 Improved the panning of stereo source channels when using stereo output.
327 Improved source filter quality on send paths.
329 Added a config option to allow PulseAudio to move streams between devices.
331 The PulseAudio backend will now attempt to spawn a server by default.
333 Added a workaround for a DirectSound bug relating to float32 output.
335 Added SSE-based mixers, for HRTF and non-HRTF mixing.
337 Added support for the new AL_SOFT_source_latency extension.
339 Improved ALSA capture by avoiding an extra buffer when using sizes
340 supported by the underlying device.
342 Improved the makehrtf utility to support new options and input formats.
344 Modified the CFLAGS declared in the pkg-config file so the "AL/" portion of
345 the header includes can optionally be omitted.
347 Added a couple example code programs to show how to apply reverb, and
350 The configuration sample is now installed into the share/openal/ directory
351 instead of /etc/openal.
353 The configuration sample now gets installed by default.