Embedded Files
Things I've found
Spek – Acoustic Spectrum Analyser
Spek – Acoustic Spectrum Analyser
Spek (IPA: /spɛk/, ‘bacon’ in Dutch) helps to analyse your audio files by showing their spectrogram. Spek is free software available for Unix, Windows and Mac OS X. http://spek.cc/
Python code for bat call detection in full spectrum audio files. This code recreates the results from the paper Bat Detective - Deep Learning Tools for Bat Acoustic Signal Detection. Link to GitHub code here.
To be fair this does require some effort, especially if you are not into Python, but I got it running using Anaconda 3 64-bit on a Windows 10 laptop with a Pentium processor. It took sometime to process the files but run one seems to be accurate in that every file flagged does contain a bat call.
The python code above tends to crash over corrupt or zero length files, in which case I've been using BatClassify - the code and project is here. It is slower but works for me. As of early 2019 there is new AudioMoth firmware that should stop the creation of zero length files.
Sonic Visualiser is an application for viewing and analysing the contents of music audio files.
The aim of Sonic Visualiser is to be the first program you reach for when want to study a musical recording rather than simply listen to it.
"We hope Sonic Visualiser will be of particular interest to musicologists, archivists, signal-processing researchers and anyone else looking for a friendly way to take a look at what lies inside the audio file."
WaveSurfer is an open source tool for sound visualization and manipulation. Typical applications are speech/sound analysis and sound annotation/transcription. WaveSurfer may be extended by plug-ins as well as embedded in other applications.
Features
Features
- Customizable - users can create their own configurations. Localization support.
- Extensible - new functionality can be added through a plugin architecture
- Embeddable - WaveSurfer can be used as a widget in custom applications
- Transcription file formats - reads, and writes HTK (and MLF), TIMIT, ESPS/Waves+, and Phondat. Support for encodings and Unicode.
- Multi-platform
For information that might be helpful on using WaveSurfer with bat calls here is an old file from the Bats and Roadside Mammals Survey
Wavesurfer instructions-BRM.pdfGoogle Sites
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