File list (Check if you may need any files):
dtmf-decoder-410b1088e36d\AndroidManifest.xml
.........................\.classpath
.........................\.project
.........................\default.properties
.........................\apphance.jar
.........................\proguard.cfg
.........................\.settings\org.eclipse.jdt.core.prefs
.........................\bin\resources.ap_
.........................\...\recognizer.apk
.........................\res\drawable-hdpi\icon.png
.........................\...\.........ldpi\icon.png
.........................\bin\classes.dex
.........................\res\drawable-mdpi\icon.png
.........................\...\layout\menu.xml
.........................\...\......\main.xml
.........................\...\values\strings.xml
.........................\src\math\FFT.java
.........................\...\....\Tools.java
.........................\...\....\Complex.java
.........................\...\....\DFT.java
.........................\...\wpam\recognizer\HistoryActivity.java
.........................\...\....\..........\HistoryRowAdapter.java
.........................\...\....\..........\MainActivity.java
.........................\...\....\..........\Controller.java
.........................\...\....\..........\HistoryItem.java
.........................\...\....\..........\Spectrum.java
.........................\...\....\..........\Recognizer.java
.........................\...\....\..........\NumericKeyboard.java
.........................\...\....\..........\RecordTask.java
.........................\...\....\..........\SpectrumFragment.java
.........................\...\....\..........\Tone.java
.........................\...\....\..........\SpectrumView.java
.........................\...\ca\uol\aig\fftpack\RealDoubleFFT_Even.java
.........................\...\..\...\...\.......\ComplexDoubleFFT_Mixed.java
.........................\...\..\...\...\.......\RealDoubleFFT.java
.........................\...\..\...\...\.......\ComplexDoubleFFT.java
.........................\...\..\...\...\.......\Complex1D.java
.........................\...\..\...\...\.......\RealDoubleFFT_Even_Odd.java
.........................\...\..\...\...\.......\RealDoubleFFT_Odd.java
.........................\...\..\...\...\.......\RealDoubleFFT_Mixed.java
.........................\...\..\...\...\.......\RealDoubleFFT_Odd_Odd.java