v0.4.7

v0.4.7

Added

• new dft in transforms for computing DFTs with any resolution
• lpc in transforms
• ExponentialAverageFilter in filterbanks
• support for python 3.13

Misc

• improved precision of parallel filter by adding a third feed-forward
  coefficient to least-squares approximation
• replaced convolve with oaconvolve in multiple places for optimal handling
  with different signal lengths
• made framed signal methods available in dsptoolbox.tools
• general doc corrections and additions
• added numba as new dependency for parallelizing some functions. It will be
  installed and used automatically if the current python environment is 3.12 or
  below. Support for numba and python 3.13 is not yet available.

Bugfix

• fixed problem with group delay designer
• fixed a problem with array dimensions in autoregressive coefficients estimation

v0.4.5

0.4.5

Added

• FilterChain in filterbanks for use in real-time applications
• arma in filterbanks for obtaining arbitrary IIR filter approximations
  to an impulse response

Misc

• renamed smoothe to smoothing across the library
• zeros, poles and gain are now saved in Filter. They are returned instead
  of recomputing from the coefficients
• general doc improvements

Bugfix

• corrected a bug where the time window of an impulse response did not match
  after some time-domain operation was applied to it
• fixed a problem with normalization in audio_io
• fixed a problem with Distortion in effects

v0.4.4

0.4.4

Added

• bark and erb approximations to warping factor
• ParallelFilter in filterbanks
• KautzFilter in filterbanks
• Realtime capabilities for filter LatticeLadderFilter, StateVariableFilter,
  IIR, FIR, KautzFilter
• warp_filter in transforms
• resample_filter in standard

Misc

• moved kautz and kautz_filters functionality to KautzFilter

Bugfix

• use the peak for combine_ir_with_dirac instead of delay with minimum-phase

v0.4.3

0.4.3

Added

• added laguerre to transforms
• added kautz and kautz_filters to transforms

Misc

• energy decay curve is not corrected with compensation energy or pruned from
  noise when something during the estimation goes wrong (fallback strategy)
• updated README
• moved warp_ir to transforms and renamed to warp
• general documentation additions and fixes
• finding the end of an IR now also allows for defining a distance to noise
  floor

Bugfix

• fixed a bug during the computation of the energy decay curve where
  phase-inverted peaks were not taken into account for the start of the
  impulse response

v0.4.2

0.4.2

Added

• apply_gain utility function in standard
• beta parameter for arbitrary noise generation
• GroupDelayDesigner in filterbanks
• nomalization of signals now accepts rms values

Misc

• frequency response interpolation with more interpolation modes
• refactored PhaseLinearizer

Bugfix

• corrected a case where scaling of spectrum while plotting was wrong

v0.4.1

0.4.1

Bugfix

• channel handling of ImpulseResponse

v0.4.0

0.4.0

Added

• ImpulseResponse as a subclass of Signal. It handles time windows, coherence
  and plotting of those windows. Assertions for expected ImpulseResponse instead
  of Signal were added as well
• new module tools for computations with primitive data types, added time
  smoothing, interpolation of frequency response
• get_transfer_function in Filter and FilterBank
• analog-matched biquads in filterbanks
• gaussian_kernel approximation in filterbanks
• gain parameter functionality for some biquads
• new biquad types (lowpass and highpass first order, inverter)
• new explicit constructors for signal and filter
• pearson correlation as part quality estimator for latency computation
• new scaling parameter in synchrosqueezing of cwt
• new parameter in window_frequency_dependent

Bugfix

• bugfix in window_frequency_dependent when querying a single frequency bin
• corrected plotting of spl when calibrated signal is passed

Misc

• got rid of signal type attribute. Use now ImpulseResponse
• general doc additions and fixes, type annotations
• fractional_octave_smoothing performance improved
• renamed some files of code base for consistency

v0.3.9

0.3.9

Added

• pinking_filter in filterbanks module

Bugfix

• fixed framed signal representation such that the last frames that need zero-padding
  can be left out
• biquad filter coefficients now use double precision by default
• minor fix in window_frequency_dependent

Misc

• added zero-padding while computing minimum phase ir for better results
• compatibility with numpy v2.0 has been ensured

v0.3.8

Misc

• renamed paramater remove_impulse_delay to remove_ir_latency
• changed default values in PhaseLinearizer
• general documentation improvements

Bugfix

• find_ir_latency now searches for the latency in comparison to the minimum
  phase ir
• harmonic_distortion_analysis was fixed so that it can succesfully trim
  the fundamental ir

v0.3.7

0.3.7

Misc

• trim_rir has an improved approach where users do not need to set any
  parameters. It was also migrated to the transfer_functions module

Bugfix

• harmonics_from_chirp_ir was fixed since it only searched for positive peaks
  in the IR to determine the impulse