scipy.signal.ShortTimeFFT.dual_win#
- property ShortTimeFFT.dual_win#
- Dual window (canonical dual window by default). - A STFT can be interpreted as the input signal being expressed as a weighted sum of modulated and time-shifted dual windows. If no dual window is given on instantiation, the canonical dual window, i.e., the window with the minimal energy (i.e., minimal L²-norm) is calculated. Alternative means for determining dual windows are provided by - closest_STFT_dual_windowand the- from_win_equals_dualclass-method. Note that- winis also always a dual window of- dual_win.- dual_winhas same length as- win, namely- m_numsamples.- If the dual window cannot be calculated a - ValueErroris raised. This attribute is read only and calculated lazily. To make this array immutable, its WRITEABLE flag is set to- FALSE.- See also - m_num
- win
- Window function as real- or complex-valued 1d array. 
- from_win_equals_dual
- closest_STFT_dual_window
- Calculate dual window closest to a desired window. 
- numpy.ndarray.setflags
- Modify array flags. 
- ShortTimeFFT
- Class this property belongs to.