Bulltrack Speech To Text conversion App

Converts speech to text and gives an output with Company names and keywords for BullTrack's App

Features

• Recording auto-stops after 3 seconds of silence.
• The companies.csv and keywords.csv contain alternate pronounciations of every word. The first element in every row is the intended word or name, and all words after that are alternate pronounciations.
• The algorithm generates a hashMap containing every alternate pronounciation as a key and its intended pronounciation as its value.
• The algorithm then compares the Speech To Text output with the keys in the hashMap and saves and displays the Value of any detected keyword.
• If the spoken word is either missing or incorrect, the user can choose their intended word from a dropdown list.
• Instead of using the csv files, you could also use a set of constants located in /components/constants/keywordsAndCompanies.js. Additional instructions can be found in /components/keywordCompanyFinder/index.js.

Running the App

This project runs on the React Native CLI, which can be installed by following the instructions found here.

Step 1:

Install @react-native-voice/voice, @react-native-picker/picker, and react-native-fs using the command

npm install @react-native-voice/voice @react-native-picker/picker react-native-fs

Step 2:

1. From the root directory, run

npm start

2. Keeping the first terminal active, open another terminal and run the command

npm run android

Generating a Standalone APK (debug APK):

Step 1:

From the root of the project, run

react-native bundle --platform android --dev false --entry-file index.js --bundle-output android/app/src/main/assets/index.android.bundle --assets-dest android/app/src/main/res

Step 2:

Change directory to Android:

cd Android

Then, run

./gradlew assembleDebug

The generated APK can be found at /android/app/build/outputs/apk/debug/app-debug.apk

To Add this Component to an Existing App

• The following line needs to be added to /android/app/src/main/AndroidManifest.xml to handle Audio Recording permissions for Android.

<uses-permission android:name="android.permission.RECORD_AUDIO"/>

• The CSV files should be stored in the folder /android/app/src/main/assets/.
• When adding more keywords and companies to companies.csv and keywords.csv, ensure no spaces before or after commas, and at the end of a line. There is an extra line at the end of each CSV file so that the picker displays an empty value.

Extras

The folder /pythonScripts contains python scripts to:

1. csvToJson.py to turn CSVs into a an array to be used in /components/constants/keywordsAndCompanies.js
2. csvAlphaSort.py to alphabetically sort a CSV file by the elements in its first column, for use in the item picker.