WhatsApp for iOS is testing three different playback speeds for voice messages: Report

WhatsApp is currently testing 1.0x, 1.5x and 2.0x playback speeds for audio messages on the platform.

from http://www.firstpost.com/tech/news-analysis/whatsapp-for-ios-is-testing-three-different-playback-speeds-for-voice-messages-report-9446711.html