3 Implemented a JACK playback backend.
5 Implemented the AL_EXT_BFORMAT and AL_EXT_MULAW_BFORMAT extensions.
7 Implemented the ALC_SOFT_HRTF extension.
9 Implemented C, SSE3, and SSE4.1 based 4- and 8-point Sinc resamplers.
11 Implemented a C and SSE based band-limited Sinc resampler. This does 12- to
12 24-point Sinc resampling, and performs anti-aliasing when increasing the
13 sample rate above the output.
15 Implemented B-Format output support for the wave file writer. This creates
16 FuMa-style first-order Ambisonics wave files (AMB format).
18 Implemented a stereo-mode config option for treating stereo modes as either
19 speakers or headphones.
21 Implemented per-device configuration options.
23 Fixed handling of PulseAudio and MMDevAPI devices that have identical
26 Fixed a potential lockup when stopping playback of suspended PulseAudio devices.
28 Fixed logging of Unicode characters on Windows.
30 Fixed 5.1 surround sound channels. By default it will now use the side
31 channels for the surround output. A configuration using rear channels is
34 Fixed the QSA backend potentially altering the capture format.
36 Fixed detecting MMDevAPI's default device.
38 Fixed returning the default capture device name.
40 Fixed mixing property calculations when deferring context updates.
42 Altered the behavior of alcSuspendContext and alcProcessContext to better
43 match certain Windows drivers.
45 Altered the panning algorithm, utilizing Ambisonics for better side and
46 back positioning cues with surround sound output.
48 Improved support for certain older Windows apps.
50 Improved the alffplay example to support surround sound streams.
52 Improved support for building as a sub-project.
54 Added an HRTF playback example.
56 Added a tone generator output test.
58 Added a toolchain to help with cross-compiling to Android.
62 Implemented EFX Chorus, Flanger, Distortion, Equalizer, and Compressor
65 Implemented high-pass and band-pass EFX filters.
67 Implemented the high-pass filter for the EAXReverb effect.
69 Implemented SSE2 and SSE4.1 linear resamplers.
71 Implemented Neon-enhanced non-HRTF mixers.
73 Implemented a QSA backend, for QNX.
75 Implemented the ALC_SOFT_pause_device, AL_SOFT_deferred_updates,
76 AL_SOFT_block_alignment, AL_SOFT_MSADPCM, and AL_SOFT_source_length
79 Fixed resetting mmdevapi backend devices.
81 Fixed clamping when converting 32-bit float samples to integer.
83 Fixed modulation range in the Modulator effect.
85 Several fixes for the OpenSL playback backend.
87 Fixed device specifier names that have Unicode characters on Windows.
89 Added support for filenames and paths with Unicode (UTF-8) characters on
92 Added support for alsoft.conf config files found in XDG Base Directory
93 Specification locations (XDG_CONFIG_DIRS and XDG_CONFIG_HOME, or their
94 defaults) on non-Windows systems.
96 Added a GUI configuration utility (requires Qt 4.8).
98 Added support for environment variable expansion in config options (not
99 keys or section names).
101 Added an example that uses SDL2 and ffmpeg.
103 Modified examples to use SDL_sound.
105 Modified CMake config option names for better sorting.
107 HRTF data sets specified in the hrtf_tables config option may now be
108 relative or absolute filenames.
110 Made the default HRTF data set an external file, and added a data set for
111 48khz playback in addition to 44.1khz.
113 Added support for C11 atomic methods.
115 Improved support for some non-GNU build systems.
119 Fixed a regression with retrieving the source's AL_GAIN property.
123 Fixed device enumeration with the OSS backend.
125 Reorganized internal mixing logic, so unneeded steps can potentially be
126 skipped for better performance.
128 Removed the lookup table for calculating the mixing pans. The panning is
129 now calculated directly for better precision.
131 Improved the panning of stereo source channels when using stereo output.
133 Improved source filter quality on send paths.
135 Added a config option to allow PulseAudio to move streams between devices.
137 The PulseAudio backend will now attempt to spawn a server by default.
139 Added a workaround for a DirectSound bug relating to float32 output.
141 Added SSE-based mixers, for HRTF and non-HRTF mixing.
143 Added support for the new AL_SOFT_source_latency extension.
145 Improved ALSA capture by avoiding an extra buffer when using sizes
146 supported by the underlying device.
148 Improved the makehrtf utility to support new options and input formats.
150 Modified the CFLAGS declared in the pkg-config file so the "AL/" portion of
151 the header includes can optionally be omitted.
153 Added a couple example code programs to show how to apply reverb, and
156 The configuration sample is now installed into the share/openal/ directory
157 instead of /etc/openal.
159 The configuration sample now gets installed by default.