Raven Pro
Type
Software
Authors
Category
Software
[ Browse Items ]
Publisher
Cornell Lab of Ornithology, United States
URL
[ private ]
Abstract
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.
MULTIPLE VIEWS AND VIEW TYPES
View any combination of waveform, spectrogram, spectrogram slice (single spectral frame), or selection (average) spectrum views.
HIGHLY CUSTOMIZABLE CONTROL OF SPECTROGRAM PARAMETERS
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.
VIEW PARAMETER LINKAGE
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 VIEWS
Multi-line wraparound spectrogram views let you look at longer time periods while preserving a fine temporal viewing scale.
WORKSPACES
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.
CONFIGURATION PRESETS
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.
COLOR SCHEMES
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.
AUTOMATIC UPDATES
WORK WITH LONG RECORDINGS
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).
AUTO-PAGING
Visually review long recordings (for example to search for specific sounds of interest) many times faster than real-time speed.
MULTIPLE AUDIO FORMATS
Open sound files saved in WAV, AIF, MP3, and FLAC formats.
MULTI-CHANNEL SIGNALS
Open sound files with any number of audio channels. Open all channels or a specified subset of channels.
IMAGE EXPORT
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.
ADVANCED MEASUREMENTS AND ANNOTATION
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 TABLE EXPORT
Selection tables can be saved as text files for easy import into statistics, spreadsheet, or other programs
SPECTROGRAM CORRELATION
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.
AUTOMATED EVENT DETECTION
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.
SELECTION REVIEW AND RAPID ANNOTATION
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 SELECTION TABLES
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.
SUPPORT FOR MULTIPLE AUDIO INPUT HARDWARE OPTIONS
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.
REAL-TIME VIEWS DURING ACQUISITION
Raven displays waveform, spectrogram, and spectrogram slice views in real time during data acquisition.
MULTIPLE VIEWS AND VIEW TYPES
View any combination of waveform, spectrogram, spectrogram slice (single spectral frame), or selection (average) spectrum views.
HIGHLY CUSTOMIZABLE CONTROL OF SPECTROGRAM PARAMETERS
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.
VIEW PARAMETER LINKAGE
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 VIEWS
Multi-line wraparound spectrogram views let you look at longer time periods while preserving a fine temporal viewing scale.
WORKSPACES
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.
CONFIGURATION PRESETS
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.
COLOR SCHEMES
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.
AUTOMATIC UPDATES
WORK WITH LONG RECORDINGS
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).
AUTO-PAGING
Visually review long recordings (for example to search for specific sounds of interest) many times faster than real-time speed.
MULTIPLE AUDIO FORMATS
Open sound files saved in WAV, AIF, MP3, and FLAC formats.
MULTI-CHANNEL SIGNALS
Open sound files with any number of audio channels. Open all channels or a specified subset of channels.
IMAGE EXPORT
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.
ADVANCED MEASUREMENTS AND ANNOTATION
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 TABLE EXPORT
Selection tables can be saved as text files for easy import into statistics, spreadsheet, or other programs
SPECTROGRAM CORRELATION
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.
AUTOMATED EVENT DETECTION
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.
SELECTION REVIEW AND RAPID ANNOTATION
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 SELECTION TABLES
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.
SUPPORT FOR MULTIPLE AUDIO INPUT HARDWARE OPTIONS
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.
REAL-TIME VIEWS DURING ACQUISITION
Raven displays waveform, spectrogram, and spectrogram slice views in real time during data acquisition.
Description
https://ravensoundsoftware.com/software/raven-pro/
Number of Copies
1
