ArticleHardwareX2026
OCTAVie: Open-source Capture Technology for Animal Vocalization in ultrasonic range.
Article in HardwareX, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Ultrasonic vocalizations (USVs) in rodents are a key tool in neuroscience for investigating emotion, social behavior, and disease models. However, commercial recording systems remain expensive and generate massive datasets that require heavy post-processing. We present an open-hardware acquisition chain-from microphone to computer-designed to compute and display sonograms in near real time, thus reducing both storage needs and analysis workload. The system integrates (i) a custom ultrasonic microphone capable of detecting signals up to 100 kHz, (ii) a dedicated analog front-end with band-pass and anti-aliasing filtering, (iii) an Intel® Cyclone V GX FPGA implementing on-board Fast Fourier Transform processing and power calculation, and (iv) a lightweight software interface for data transfer and visualization. All design files, including Printed Circuit Board (PCB) layouts, VHDL codes, and C software, are openly released to ensure reproducibility. Compared to traditional microcontroller-based acquisitions, this architecture reduces raw data storage by more than 50% while maintaining a frequency resolution of ∼0.39 kHz and a temporal resolution of ∼2.5 ms - sufficient to resolve both 22 kHz and 50 kHz USVs. Validated with synthetic signals and experimental recordings, the platform provides neuroscientists with a low-cost, modular, and fully transparent tool for studying ultrasonic communication.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.