Audio digitization

A method of digitizing an audio track carried on an elongate recording medium comprising a film containing a sequence of frames captured at a frame rate, the method including:

• transporting the recording medium containing the audio track past a reader to enable sequential reading of the audio track during a process for digitizing frames contained on the film;
• reading the audio track with the reader to generate an analog output signal;
• sensing a rate of transportation of the recording medium;
• and
• sampling the analog output signal at a sampling rate determined on the basis of the sensed rate of transportation to digitize the analog output signal, wherein sampling the analog output signal includes:
• generating a modulator clock signal having a modulator clock frequency based on the sensed rate of transportation;
• and
• applying the modulator clock signal to an analog-to-digital converter to digitize the analog output signal and generate a digitized audio output corresponding to the frame rate of the film.