In Andrews phone call, by detecting the audio to determine what the user presses a key, the voice gateway processing is very useful, do not need the hardware! This is the source code.

hg\bin\classes.dex
..\...\recognizer.zip
..\...\resources.ap_
..\res\drawable-hdpi\icon.png
..\...\.............\ic_menu_history.png
..\...\.............\ic_menu_info.png
..\...\.............\ic_menu_send.png
..\...\.............\_pre_production\icon.psd
..\...\.............\...............\ic_menu_history.psd
..\...\.............\...............\ic_menu_info.psd
..\...\.............\...............\ic_menu_send.psd
..\...\.........ldpi\icon.png
..\...\.............\ic_menu_info.png
..\...\.............\ic_menu_send.png
..\...\.............\ic_menu_template.png
..\...\.........mdpi\icon.png
..\...\.............\ic_menu_history.png
..\...\.............\ic_menu_info.png
..\...\.............\ic_menu_send.png
..\...\layout\history.xml
..\...\......\history_row.xml
..\...\......\main.xml
..\...\......\menu.xml
..\...\values\strings.xml
..\...\......-pl\strings.xml
..\src\math\Complex.java
..\...\....\DFT.java
..\...\....\FFT.java
..\...\....\Tools.java
..\...\wpam\recognizer\Controller.java
..\...\....\..........\DataBlock.java
..\...\....\..........\History.java
..\...\....\..........\HistoryActivity.java
..\...\....\..........\HistoryItem.java
..\...\....\..........\HistoryRowAdapter.java
..\...\....\..........\MainActivity.java
..\...\....\..........\NumericKeyboard.java
..\...\....\..........\Recognizer.java
..\...\....\..........\RecognizerTask.java
..\...\....\..........\RecordTask.java
..\...\....\..........\Spectrum.java
..\...\....\..........\SpectrumFragment.java
..\...\....\..........\SpectrumView.java
..\...\....\..........\StatelessRecognizer.java
..\...\....\..........\Tone.java
..\res\drawable-hdpi\_pre_production
..\src\wpam\recognizer
..\res\drawable-hdpi
..\...\drawable-ldpi
..\...\drawable-mdpi
..\...\layout
..\...\values
..\...\values-pl
..\src\math
..\...\wpam
..\bin
..\res
..\src
hg

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