deepextractor.generation.generate_spectrograms
==============================================

.. py:module:: deepextractor.generation.generate_spectrograms

.. autoapi-nested-parse::

   Convert time-domain .npy arrays to STFT spectrograms (magnitude + phase).

   Also provides a utility to concatenate chunked spectrogram files.

   Usage::

       deepextractor-specgen --input-dir data/pycbc_noise/time_domain/ --output-dir data/pycbc_noise/spectrogram_domain/







Module Contents
---------------

.. py:data:: DEFAULT_N_FFT
   :value: 512


.. py:data:: DEFAULT_WIN_LENGTH
   :value: 64


.. py:data:: DEFAULT_HOP_LENGTH
   :value: 32


.. py:function:: apply_stft_and_save(array_path, save_path, n_fft, hop_length, win_length, window, chunk_size=5000)

   Apply STFT to a .npy array in chunks and save the result.


.. py:function:: load_and_concatenate_chunks(data_dir, base_filename, total_chunks)

   Load and concatenate chunked numpy arrays saved as ``{base}_chunk_{i}.npy``.


.. py:function:: main()