Noise Analysis

Introduction

Raven Pro is not optimized for measuring long-term spectrograms as is often required for noise analysis and soundscape analysis.

Discussion

Manta

We recommend using Manta for measuring long-term spectrograms

• Manta
• Ocean Sound Analysis Software for Making Ambient Noise Trends Accessible (MANTA)
• MANTA Downloads and Installation Video – If you aren’t a MATLAB user, you will probably find it most useful to install the standalone app, which does not require a MATLAB license.

Raven Expedition

For the past year, the Raven application developers have been working on Raven Workbench, a collection of modules that will gradually replace and augment Raven Pro’s functionality and that we will distribute free of charge. One of these modeuls is Raven Expedition, which displays long-term spectral averages (LTSA) and which has an optional hybrid-millidecade frequency scale.

If you would like to try out the new apps, you can find download links for the pre-release versions and draft documentation at the links below:

• Product Overview with pretty pictures
• Quick Start Guide to get you started
• Knowledge Base with technical information