High Quality Audio Loopback Plug

  • 3.5mm stereo plugs which connects to the audio port of your Windows PC or Android device for loopback testing.
  • Measure round-trip audio latency and autocorrelation.
  • Compatible for testing with both Windows PC and Android.
  • Suitable for use with OboeTester and BurnInTest.

Audio Loopback Plug for Android

These are the only loopback plugs designed and manufactured specifically for loopback testing of audio ports and headset connectors, built using the circuit specifications outlined by Google.

The plugs can be used to meaure round-trip latency and autocorrelation with software such as OboeTester.

If your PC or Android device has no audio port, the plug can be paired with a USB-C to 3.5mm audio adapter for testing (adapter not included).

Audio Port with Adapter

Audio Port

Audio testing with OboeTester.

OboeTester is a free and open source software that can be used to measure device latency and glitches on Android devices when paired with PassMark's Audio Loopback Plug.

OboeTester can be downloaded directly from the Google Play Store. Alternatively, it can be built within Android Studio. For a guide on how to download and run OboeTester within Android Studio, view the Specifications Page.

Audio testing with BurnInTest.

Utilizing the Sound Test in BurnInTest, the loopback plug can be used to measure the distortion between audio input and audio output.

Results are displayed as comparison waveforms, providing a visual indication of distortion across both the left and right channel.

Audio Port