2026-07-27T23:52:00Z
https://api.figshare.com/v2/oai
oai:figshare.com:article/29851535
2025-08-11T11:34:18Z
category_28873
portal_549
item_type_9
month_year_08_2025
10.5522/04/29851535.v1
https://figshare.com/articles/software/NISPAE_Non_Intrusive_SPectrogram_Analyses_on_the_Edge/29851535
https://ndownloader.figshare.com/files/57007955
Signorelli, Valerio
Valerio
Signorelli
<![CDATA[NISPAE, Non Intrusive SPectrogram Analyses on the Edge]]>
Audio processing
spectrogram
python
raspberrypi
iot
MQTT
Audio Analysis
Data Visualisations
Short-time Fourier transform (STFT)
2025-08-11
2025-08-11
Software
2025
University College London
NISPAE is a Python application for performing Non-Intrusive SPectrogram Analyses on the Edge. It is designed to analyse audio signals in real-time, without the need to collect any audio recordings, and extract relevant features using the short-time Fourier transform (STFT). This solution is particularly useful for recording in public places where concerns regarding privacy in regards to actual audio recording may arise. NISPAE is optimized for running on edge devices with limited computational resources, such as Raspberry Pi (currently tested on Rpi 4 and Rpi 3B+).
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