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openal-soft-1.17.0:
Implemented a JACK playback backend.
Implemented the AL_EXT_BFORMAT and AL_EXT_MULAW_BFORMAT extensions.
Implemented the ALC_SOFT_HRTF extension.
Implemented C, SSE2, and SSE4.1 based 4-point Sinc-Lanczos resamplers.
Implemented a C based 6-point Sinc-Lanczos resampler.
Implemented B-Format output support for the wave file writer. This creates
FuMa-style first-order Ambisonics wave files (AMB format).
Implemented a stereo-mode config option for treating stereo modes as either
speakers or headphones.
Implemented per-device configuration options.
Fixed handling of PulseAudio and MMDevAPI devices that have identical
descriptions.
Fixed a potential lockup when stopping playback of suspended PulseAudio devices.
Fixed logging of Unicode characters on Windows.
Fixed 5.1 surround sound channels. By default it will now use the side
channels for the surround output. A configuration using rear channels is
still available.
Fixed the QSA backend potentially altering the capture format.
Fixed detecting MMDevAPI's default device.
Fixed returning the default capture device name.
Fixed mixing property calculations when deferring context updates.
Altered the behavior of alcSuspendContext and alcProcessContext to better
match certain Windows drivers.
Altered the panning algorithm, utilizing Ambisonics for better side and
back positioning cues with surround sound output.
Improved support for certain older Windows apps.
Improved the alffplay example to support surround sound streams.
Improved support for building as a sub-project.
Added a toolchain to help with cross-compiling to Android.
openal-soft-1.16.0:
Implemented EFX Chorus, Flanger, Distortion, Equalizer, and Compressor
effects.
Implemented high-pass and band-pass EFX filters.
Implemented the high-pass filter for the EAXReverb effect.
Implemented SSE2 and SSE4.1 linear resamplers.
Implemented Neon-enhanced non-HRTF mixers.
Implemented a QSA backend, for QNX.
Implemented the ALC_SOFT_pause_device, AL_SOFT_deferred_updates,
AL_SOFT_block_alignment, AL_SOFT_MSADPCM, and AL_SOFT_source_length
extensions.
Fixed resetting mmdevapi backend devices.
Fixed clamping when converting 32-bit float samples to integer.
Fixed modulation range in the Modulator effect.
Several fixes for the OpenSL playback backend.
Fixed device specifier names that have Unicode characters on Windows.
Added support for filenames and paths with Unicode (UTF-8) characters on
Windows.
Added support for alsoft.conf config files found in XDG Base Directory
Specification locations (XDG_CONFIG_DIRS and XDG_CONFIG_HOME, or their
defaults) on non-Windows systems.
Added a GUI configuration utility (requires Qt 4.8).
Added support for environment variable expansion in config options (not
keys or section names).
Added an example that uses SDL2 and ffmpeg.
Modified examples to use SDL_sound.
Modified CMake config option names for better sorting.
HRTF data sets specified in the hrtf_tables config option may now be
relative or absolute filenames.
Made the default HRTF data set an external file, and added a data set for
48khz playback in addition to 44.1khz.
Added support for C11 atomic methods.
Improved support for some non-GNU build systems.
openal-soft-1.15.1:
Fixed a regression with retrieving the source's AL_GAIN property.
openal-soft-1.15:
Fixed device enumeration with the OSS backend.
Reorganized internal mixing logic, so unneeded steps can potentially be
skipped for better performance.
Removed the lookup table for calculating the mixing pans. The panning is
now calculated directly for better precision.
Improved the panning of stereo source channels when using stereo output.
Improved source filter quality on send paths.
Added a config option to allow PulseAudio to move streams between devices.
The PulseAudio backend will now attempt to spawn a server by default.
Added a workaround for a DirectSound bug relating to float32 output.
Added SSE-based mixers, for HRTF and non-HRTF mixing.
Added support for the new AL_SOFT_source_latency extension.
Improved ALSA capture by avoiding an extra buffer when using sizes
supported by the underlying device.
Improved the makehrtf utility to support new options and input formats.
Modified the CFLAGS declared in the pkg-config file so the "AL/" portion of
the header includes can optionally be omitted.
Added a couple example code programs to show how to apply reverb, and
retrieve latency.
The configuration sample is now installed into the share/openal/ directory
instead of /etc/openal.
The configuration sample now gets installed by default.
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