
Description: VB-Audio Virtual Cable is a simple piece of software that creates virtual audio cables on your Windows PC. It allows you to route audio between applications and even create virtual mixers.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Soundflower is a free, open source MacOS system extension that allows applications to pass audio to other applications. It's useful for routing audio between audio apps, recording system audio, and more. Soundflower creates a virtual audio interface with 2 channels that can be used to transmit audio in real-time.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API