261 lines
6.8 KiB
ReStructuredText
261 lines
6.8 KiB
ReStructuredText
lib_mic_array change log
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========================
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5.5.0
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-----
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* CHANGED: Documentation updated
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* CHANGED: Renamed examples to app_
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* CHANGED: Renamed the scripts/ directory to python/
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* Changes to dependencies:
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- lib_xcore_math: 2.3.0 -> 2.4.0
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5.4.0
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-----
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* CHANGED: All examples now build under XCommon CMake build system
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* ADDED: Will build without errors for XS2 targets but no API available
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* DEPRECATED: Previously used custom CMake build support. This will be removed
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in future versions. Please use XCommon CMake build system as provided in XTC
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15.3.0 onwards for new projects.
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* Changes to dependencies:
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- lib_xcore_math: 2.0.0 -> 2.3.0
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5.3.0
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-----
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* FIXED: Vanilla configuration now compiles correctly under XTC 15.3.0
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* ADDED: Support for XCommon CMake build system
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5.2.0
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-----
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* Added 48 kHz decimator design script
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* Added documentation to cover 32 kHz and 48 kHz deciamtors
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5.1.0
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-----
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* Added 16ch de-interleave to support 16 DDR mics on a single 8b port
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* Added parallel decimation use example
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* Fixed documentation generation issues
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5.0.3
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-----
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* Improved default audio filter. Reduces noise floor and improves alias
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attentuation
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* Changed DCOE filter to increase attenuation below 20 Hz
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5.0.2
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-----
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* Documentation improvements.
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5.0.1
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-----
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* Updates lib_mic_array to use lib_xcore_math (formerly lib_xs3_math) version
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2.0.2
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* Updates CMake project to use CPM to obtain dependencies (when top level
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project)
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* [issue #171] Changes behavior when mic array consumer gets backed up from a
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quiet deadlock to an ECALL exception
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* Also adds a way to allow blocks of PDM to be quietly dropped instead (see
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AssertOnDroppedBlock())
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5.0.0
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-----
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* Mic Array library redesigned from scratch to make efficient use of XMOS XS3
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architecture
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* Many unused features from previous versions have been dropped
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* Initial v5.0 features:
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* Supports 1-, 4-, and 8-bit ports
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* Supports both SDR and DDR microphone configurations
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* Use 1-16 PDM microphones
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* Configurable PDM clock frequency
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* Configurable two-stage decimating FIR
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* Reference filter with total decimation factor of 192 provided
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* Optional DC offset elimination filter
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* Configurable frame size (down to single sample)
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* Extensible C++ design
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* Changes to dependencies:
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- lib_dsp: Removed dependency
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- lib_logging: Removed dependency
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- lib_xassert: Removed dependency
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- lib_xcore_math: Added dependency 2.0.0
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4.3.0
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-----
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* CHANGED: Use XMOS Public Licence Version 1
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* FIXED: Compiler warnings when MIC_DUAL_ENABLED is not defined
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4.2.2
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-----
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* CHANGED: Pin Python package versions
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* REMOVED: not necessary cpanfile
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4.2.1
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-----
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* CHANGED: Jenkinsfile pinned to Jenkins shared library 0.10.0
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* CHANGED: Updated the minimum version of libraries this library depends upon.
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4.2.0
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-----
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* ADDED support for global define to set single/dual output buffer for
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mic_dual
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4.1.0
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-----
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* Added mic_dual, an optimised single core, 16kHz, two channel version (not
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compatible with async interface)
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4.0.0
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-----
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* ADDED: Support for arbitrary frame sizes
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* ADDED: #defines for mic muting
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* ADDED: Non-blocking interface to decimators for 2 mic setup
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* CHANGED: Build files updated to support new "xcommon" behaviour in xwaf.
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3.2.0
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-----
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* Added xwaf build system support
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* Cleaned up some of the code in the FIR designer.
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* Removed fixed gain in examples
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* Update VU meter example
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* Fix port types in examples
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* Set and inherit XCC_FLAGS rather than XCC_XC_FLAGS when building library
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3.1.1
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-----
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* Updated lib_dsp dependancy from 3.0.0 to 4.0.0
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3.1.0
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-----
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* Modified the FIR designer to increase the first stage stopband attenuation.
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* Cleaned up some of the code in the FIR designer.
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* Updated docs to reflect the above.
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3.0.2
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-----
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* Update DAC settings to work for mic array base board as well.
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3.0.1
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-----
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* Filter design script update for usability.
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* Documentation improvement.
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* Changed DEBUG_UNIT to XASSERT_UNIT to work with lib_xassert.
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* Added upgrade advisory.
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* Added dynamic range subsection to documentation.
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3.0.0
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-----
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* Added ability to route internal channels of the output rate of the mic_array
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to the mic_array so that they can benefit from the post processing of the
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mic_array.
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* Enabled the metadata which delivers the frame counter.
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* Small fix to the filter generator to allow the use of fewer taps in the
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final stage FIR.
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* Added significant bits collection to the metadata.
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* Added fixed gain control through define MIC_ARRAY_FIXED_GAIN.
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* Tested and enabled the debug mode for detecting frame dropping. Enabled by
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adding DEBUG_MIC_ARRAY to the Makefile.
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* Moved to using types from lib_dsp.
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* Bug fix in python FIR generator script resulting in excessive output ripple.
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* Default FIR coefficients now optimised for 16kHz output sample rate.
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* Added ability to remap port pins to channels.
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* MIC_ARRAY_NUM_MICS is now forced to a multiple of 4 with a warning if it
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changed.
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* Corrected MIC_ARRAY_DC_OFFSET_LOG2 default value reporting in documentation.
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* Changes to dependencies:
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- lib_dsp: Added dependency 3.0.0
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2.0.1
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-----
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* Updated AN00221 to use new lib_dsp API for FFTs
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* Updates required for latest lib_mic_array_board_support API
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2.0.0
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-----
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* Renamed all functions to match library structure
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* Decimator interface functions now take the array of
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mic_array_decimator_config structure rather than
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mic_array_decimator_config_common
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* All defines renames to match library naming policy
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* DC offset simplified
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* Added optional MIC_ARRAY_NUM_MICS define to save memory when using less than
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16 microphones
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1.0.1
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-----
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* Added dynamic DC offset removal at startup to eliminate slow convergance
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* Mute first 32 samples to allow DC offset to adapt before outputting signal
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* Fixed XTA scripte to ensure timing is being met
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* Now use a 64-bit accumulator for DC offset removal
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* Consolidated generators into a single python generator
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* Produced output frequency response graphs
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* Added 16 bit output mode
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1.0.0
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-----
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* Major refactor
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* FRAME_SIZE_LOG2 renamed MAX_FRAME_SIZE_LOG2
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* Decimator interface now takes arrays of streaming channels
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* Decimators now take channel count as a parameter
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* Added filter designer script
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* Documentation updates
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* First stage now uses a FIR decimator
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* Changed decimation flow
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* Removed high res delay module
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* Added generator for FIR coefficients
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* Added ability to reduce number of channels active in a decimator
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* Increased number of FIR taps
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* Increased output dynamic range
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0.0.2
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-----
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* Documentation fixes
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* Fixed frame number fix
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* Added frame metadata
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0.0.1
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-----
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* Initial Release
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* Changes to dependencies:
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- lib_logging: Added dependency 2.0.0
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- lib_xassert: Added dependency 2.0.0
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