If you notice a significant pause after BirdNET has finished processing your audio file but before returning the results, this is likely due to data conversion overhead between Python and R. This is particularly noticeable when:
min_confidence < 0.1
)Apache Arrow can significantly reduce these delays by optimizing data transfer between Python and R. While there are no drawbacks to enabling Arrow, the performance gains are negligible when processing small amounts of data.
To enable Arrow:
install_arrow()
use_arrow
argument to TRUE
in the
predict_species_from_audio_file()
functionCredits to Danielle Navarro for the original solution1.
Navarro, Danielle. 2022. “Passing Arrow Data Between R and Python with Reticulate.” September 9, 2022. https://blog.djnavarro.net/posts/2022-09-09_reticulated-arrow/.↩︎