fix T("tape") stereo -> mono
fix T("tape") stereo -> mono

ABaldwinHunter/timbre.js-classic,eriser/timbre.js,ABaldwinHunter/timbre.js,ABaldwinHunter/timbre.js-classic,ABaldwinHunter/timbre.js,mohayonao/timbre.js,mohayonao/timbre.js,eriser/timbre.js