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

v0.3.6

0.3.6

Added

• set_latency and set_blocksize in audio_io
• dither in standard

Misc

• general documentation and small performance improvements

v0.3.5

0.3.5

Added

• harmonic_distortion_analysis in transfer_functions
• added possibility of scaling the spectrogram
• calibration using any dBSPL value

Bugfix

• reverb_time now uses indices of peaks instead of -20 dBFS threshold since
  it delivers more accurate results
• now scaling a spectrum of a signal with a window is done correctly (taking
  the window into account)

Misc

• general documentation and small performance improvements

v0.3.4

0.3.4

Added

• added support for MultiBandSignal in hilbert in module transforms
• plot momentary spl added in Signal
• PhaseLinearizer can now adapt to an input group delay
• find_modes in room_acoustics can now find antiresonances and use a
  prominence value in dB for finding peaks in the CMIF
• plot_phase in signal class can now apply smoothing to the phase and also
  remove the delay of the impulse response
• MultiBandSignal can now return its time data

Bugfix

• a new criterion was added to trim_rir to reliably find the end of aqs RIR.
  It now looks at non-overlapping windows and expects the energy to decay
  monotonically after the impulse has arrived
• window_centered_ir fixed for certain lengths
• generate_synthetic_rir has been fixed after previous refactoring changed
  some underlying functions
• noise in generators has been now fixed since its previous slopes were
  erroneously defined in the amplitude spectrum instead of the power spectrum

Misc

• general documentation and small performance improvements
• window_frequency_dependent is now optimized to be faster and can apply a
  window-dependent scaling to its output
• MultiBandSignal checks now for complex time data and ensures it is
  consistent in every band
• if Signal has time_data_imaginary, it is now also plotted in the
  plot_time method
• get_spectrum now returns the correctly scaled spectrum also when the method
  is standard
• updated some example notebooks
• group_delay functions in transfer_functions can apply now smoothing
• reverb_time now returns correlation coefficients as well
• corrected smoothing behavior in signal class when plotting

v0.3.3

0.3.3

Added

• added state variable filter StateVariableFilter discretized with a
  topology-preserving transform

Misc

• Corrected orders for linkwitz_riley_crossover and added 2nd order

v0.3.0

0.3.0

Added

• added complementary_fir_filter in filterbanks module
• window_ir in transfer_functions is now adaptive to the impulse
• added automatic trimming of room impulse responses for reverberation time
  and descriptors using a smooth envelope of the energy time curve. Additionally,
  added warning if reverb_time with Topt does not seem to find a good
  linear fit for the energy decay curve
• partly refactored linkwitz_riley_crossover and allow for odd order
  crossovers
• PhaseLinearizer in filterbanks module is now available for designing
  FIR filters to linearize a given phase response
• added trim_rir in room_acoustics for trimming RIRs in a parametrized
  manner

Bugfix

• corrected scaling of spectrum in the case of amplitude spectrum in signal
  class
• corrected computation of minimum phase using log hilbert method
• corrected a case in window_centered_ir where padding was needed
• fixed a bug for MultiBandSignal where it could not add new bands in a
  multirate configuration

Misc

• docs and tests
• refactored window_ir for more flexibility and consistency
• now compute_transfer_function also returns the coherence
• change LatticeLadderFilter to be part of filterbanks module