  We provide a comprehensive technical analysis of the data acquisition process
with oscillating delay lines for Terahertz time domain spectroscopy. The
utilization of these rapid stages, particularly in high-repetition rate
systems, permits an effective reduction of noise content through averaging.
However, caution must be exercised to optimize the averaging process, with the
goal of significantly optimizing the dynamic range (DR) and signal-to-noise
ratio (SNR). A free and open-source program, called parrot (Processing All
Rapidly & Reliably Obtained THz-traces), is provided alongside this publication
to overcome the discussed pitfalls and facilitate the acceleration of
experimental setups and data analysis, thereby enhancing signal fidelity and
reproducibility.
