Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2009 Apr 17;212(9):1377–1391. doi: 10.1242/jeb.028506

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

PMC Copyright notice

Fig. 5. — Examples of two representative grunts exhibiting acoustic beats from B. trispinosus. (A) Waveform, (B) spectrogram, (C) power spectrum, (D) and waveform with expanded time base of a individual grunt. Box in A indicates enlarged section in D. Arrows in C represent peaks at 194, 2196, 2326 and 2498 Hz. (D) Waveform, (E) spectrogram, (F) power spectrum and (G) waveform with expanded time base of a second grunt, showing beat structure and clear harmonics. Box in E indicates enlarged section in H. Arrows in G represent peaks at 194, 2196, 2348 and 2520 Hz. For spectrograms (B,F) and power spectra (D,H), FFT size=1028 samples.