High-frequency acoustic recording of bird sonations (Trochilidae)

Knowledge graph centered on High-frequency acoustic recording of bird sonations (Trochilidae) with 29 nodes and 105 connections. Top connected: Rocky Mountain Biological Laboratory, Gothic, Crested Butte, Salix lucida subsp. lasiandra, Selasphorus platycercus.

Method synopsis

High sampling rate audio recording and spectrographic analysis of mechanical sounds produced by birds during flight, including wing and tail-generated sonations.

Synthesized from method descriptions across 1 paper using this protocol.

Procedure from a recent peer-reviewed implementation

Steps below were extracted from the most recent peer-reviewed implementation of this protocol in the corpus — Synchronization of speed, sound and iridescent color in a hummingbird aerial courtship dive (2018), Nature Communications. Implementations in other papers (listed below) may differ.

1. Audio recording of dive sonations
   Simultaneous audio recordings were made of the mechanical sounds produced during dives using microphones with 192 kHz sampling rate. Recordings captured wing-generated and tail-generated sonations produced at different phases of the dive.
   Quantities: Audio recordings for same 48 dives, with 35 dives having sufficient quality for detailed acoustic analysisDuration: Concurrent with video recordingsConditions: Field recording conditions, accounting for background noise and interference
   Equipment: microphones with 192 kHz sampling capability
2. Acoustic analysis and spectrogram generation
   Processed audio recordings to create spectrograms and analyze frequency content of sonations. Identified three distinct acoustic sections (A, B, C) corresponding to different phases of dive. Measured Doppler frequency shifts and calculated acoustic parameters.
   Quantities: Detailed acoustic analysis of 35 high-quality recordings from 48 total divesDuration: Post-processing analysis of audio recordingsConditions: Laboratory analysis with noise filtering and signal processing
   Equipment: acoustic analysis software, spectrogram generation tools

Typical Equipment

• microphones with 192 kHz sampling capability
• acoustic analysis software
• spectrogram generation tools

Output Measurements

• sonation frequencies
• acoustic timing
• Doppler frequency shifts

Papers Using This Protocol (1)

Species Studied With This Protocol

Places Where Used