If you're looking to Download Tone Generator Professional on your Chromebook laptop Then read the following guideline.
Generate tones from 20 to 20,000Hz in 4 different waveforms! · Sine, Square, Triangle and Sawtooth waveforms · Output volume setting · Instant load and most precise algorithm for tone emission. · Compatible with external speakers · 64-bit Universal app, works with iPhone, iPad and iPod touch!