Version 0.021 (13 March 2003)

1. Dora002_src.zip Dora source code.
2. Dora.jar Dora VERSION 0.021 class archive
3. Dora_docs.zip Preliminary document about how to use Dora.
4. Instructions.html Preliminary document about how to use Dora.

Dora2 and Cor-Net (20 July 2005)

1. Dora2 (source, jar, bat, and documentation)
2. Dora2 documentation
3. Dora2-MakingPhrases.pdf

Other sound programs

1. Sonogram is a java program that lets you open a sound (.wav) file and draw a sonogram of it, optionally saving the pictures as a .jpg file. You can use the interface to adjust a number of parameters that control what the sonogram looks like. This is the program (or at least the algorithm and probably the actual code) used to to generate most of the sonograms in the examples below.
2. ChannelTool is a java program that lets you pick a list of ".wav" files and then extract the channels you select from each into new sound files.
3. SoundMeter is a java program that lets you select one or more sound (.wav) files. Treating the samples in blocks of user specified size, it computes summary statistics on the sound amplitudes in the sounds. By recordings using standardized settings and conditions you can use the output of this program as a crude but effect sound level meter.

Examples

You can see the results of the "phrase extraction" and "Cor-net" modules by looking at how they cut up a recording of a Red-eyed Vireo or a Blue-headed Vireo. to estimate the repertoire size for these birds.

In Northern Cardinal Summary you can view sonograms generated by Dora2. This document is a summary of the different Cardinal songs from a couple locations over several years. In this draft document you can see roughly the same thing along with a more extended discussion of the methods and software I've been using.

Earlier versions

1. Dora version 0.01 (28 October 2002) First distribution.
2. Dora version 0.015 (November 2002) First distribution.