• Mac Os Versions
• Ravan Mac Os Catalina

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• New users may request a 30-day trial license for evaluation purposes by writing to Raven support desk. How do I download Raven? Choose an installer based on the platform on which you intend to install Raven Pro (Windows, Mac OS X, or Linux). Windows versions of Raven 1.6 require 64-bit Windows.
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Raven Pro is a software program for the acquisition, visualization, measurement, and analysis of sounds. Raven Pro provides a powerful, user-friendly research and teaching tool for scientists working with acoustic signals. Raven Pro’s highly configurable views provide unparalleled flexibility in data display.

View any combination of waveform, spectrogram, spectrogram slice (single spectral frame), or selection (average) spectrum views.

Independent control of spectral window size and DFT size enables improved frequency measurement precision. Specify spectral window size by sample points, time units, or corresponding bandwidth. Choose DFT size directly or by corresponding frequency measurement precision. Variable overlap between spectral frames. Choice of six spectral window functions.

Raven’s powerful view linkage controls enable you to simultaneously view a signal at multiple time or frequency scales or at different spectral analysis resolutions. Link time and frequency scales so signals in different windows zoom and rescale together, facilitating visual comparisons between recordings.

Multi-line wraparound spectrogram views let you look at longer time periods while preserving a fine temporal viewing scale.

A workspace saves all information about Raven's state, including what signals are open, the size and placement of their windows, what views exist for each signal, selections in each signal, and linkages among views within and between signals. You can later retrieve a workspace to continue your work exactly where you left off.

Presets let you easily switch among frequently used configurations without having to specify numerous parameters for window layouts, color schemes, measurement sets, spectrograms, recorders, band filters, selection labels, and detectors.

A color scheme consists of a spectrogram colormap relating power values to display colors, and color specifications for elements within each view (such as selections, axes, backgrounds, title text, etc.). Choose from eight predefined colormaps, and edit the color for each element in a view.

Paged sound windows enable fast and easy navigation and viewing of recordings of any length, consisting of any number of sound files (for example, a full year of continuous recording in 1-hour sound files).

Spin and win slot machine. Apps facebook doubledown casino. Visually review long recordings (for example to search for specific sounds of interest) many times faster than real-time speed.

Open sound files saved in WAV, AIF, MP3, and FLAC formats.

Open sound files with any number of audio channels. Open all channels or a specified subset of channels.

Export images of signal views or sound windows via a variety of graphics file formats, or via the system clipboard for easy import into word-processing, presentation, and graphics programs.

More than 70 measurements are available for rectangular time-frequency selections around signals of interest. Selections can be created manually by drawing boxes on spectrograms or other views, or by Raven’s band-limited energy detector (see below). Selections measurements are shown in rows in a spreadsheet-like selection table. In addition to measurements computed from the audio signal, selection tables can include multiple user-defined annotations.

Selection tables can be saved as text files for easy import into statistics, spreadsheet, or other programs

Raven’s spectrogram correlation tool provides a quantitative measure of similarity between two sounds. Batch correlation generates a square correlation matrix containing similarity measures for all possible pairs of input sounds. Correlation matrices can be exported for use in in other programs, for example in cluster analysis or comparisons to other types of data.

Raven’s Band-Limited Energy Detector (BLED) can rapidly scan recordings to automatically create selections around events of specified durations in a user-defined frequency band that exceed the background noise level by an adjustable threshold. The BLED can be run in an interactive mode for fine-tuning detection parameters, and in a batch mode on large numbers of files. Measurements are immediately available for selections created by the detector.

Mac Os Versions

Raven’s Selection Review interface accelerates review of large numbers of selection generated by an automated detector by displaying a matrix of thumbnail images of selections. Multiple selections can then be annotated with a single keystroke, for example to label true versus false detections or to assign call type or species labels.

Compare the results of a detector run against a “truth” table created by a human. Raven automatically labels true positive events (TP) that the detector found, false positives (FP), and the false negatives (FN) that the detector missed. This feature facilitates quantitative assessment of detector performance.

Raven Pro supports audio data acquisition using the computer’s built-in sound card, NI-DAQ (National Instruments Data Acquisition hardware), or ASIO (Audio Stream In/Out) audio input devices. NI-DAQ devices provide input capabilities of up to 32 channels with an adjustable voltage range, and ASIO devices provide 24-bit audio sample size capabilities.

Raven displays waveform, spectrogram, and spectrogram slice views in real time during data acquisition.

Features

Price

• Multiple views and view types
• Advanced spectrogram slice and selection spectrum views
• Highly customizable control of spectrogram parameters
• View parameter linkage
• Multi-line views
• Workspaces
• Configuration presets
• Color schemes
• Automatic updates
• Work with long recordings irrespective of memory limitations
• Auto-paging
• File sequences
• Multiple audio formats (WAV, FLAC, AIF, MP3)
• Multi-channel signals
• Image export
• Support for multiple audio input hardware options
• Real-time views during acquisition
• Selection, measurement, and basic annotation
• Advanced measurements and annotation
• Selection table export
• Spectrogram correlation
• Automated event detection
• Selection review and rapid annotation
• Compare selection tables

The Cornell Bioacoustics Research Program is pleased to announce the release of a series of short video tutorials introducing the most widely used features of Raven Pro 1.5 bioacoustic analysis software.

Although these tutorials 'begin at the beginning,' experienced users may learn something as well. Presently the videos are available in English and Hindi; Portuguese and other languages coming soon.”

Ravan Mac Os Catalina

Raven Lite users may find these videos helpful as well.