Audinterface

---------------------------

* Changed: ``audinterface.Feature``
uses multi-level column format
and names columns after channel ID
when result has more than one channel

--------------------------

* Changed: require ``audformat>=0.15.3``
* Fixed: segmented indices are returned
with ``file`` level
as dtype ``string``
as introduced with ``audformat`` 0.15.0
* Removed: support for Python 3.7

--------------------------

* Changed: support special arguments
``idx``,
``file``,
``root``
in processing function

--------------------------

* Added: ``auinterface.utils.sliding_window()``
* Added: ``auinterface.utils.to_timedelta()``
* Added: argument
``process_func_applies_sliding_window``
to
``audinterface.Feature``
* Added: arguments
``win_dur`` and ``hop_dur``
to
``audinterface.Process``
* Added: arguments
``min_signal_dur`` and ``max_signal_dur``
to
``audinterface.Feature``,
``audinterface.Process``,
``audinterface.Segment``
* Added: argument
``cache_root``
to
``audinterface.Feature.process_index()``,
``audinterface.Process.process_index()``
* Changed: extend documentation with docstring examples and usage section
* Deprecated: ``unit`` argument of ``audinterface.Feature``,
instead specify unit directly when providing duration arguments,
compare ``audinterface.utils.to_timedelta()``
* Fixed: ``audinterface.ProcessWithContext``
requires one output for every segment

--------------------------

* Added: ``audinterface.Feature`` does support
specification of single feature as string
in addition to list
* Changed: depend on ``audresample>=1.1``
* Fixed: handle empty and non-existing folder
in ``process_folder()`` methods

--------------------------

* Added: Python 3.9 support
* Added: ``process_func_args`` argument to process methods
* Deprecated: ``**kwargs`` in process methods,
use ``process_func_args`` argument instead
* Removed: deprecated ``process_unified_format_index()`` methods
* Removed: Python 3.6 support