All Audio Logger licenses come with a single recording slot, but you can purchase an unlimited number of extra slots to make Audio Logger a multi-slot recording and monitoring solution.

Audio Logger is designed to record audio signals continuously around the clock. It splits the recordings into files of a configurable duration (default is one hour), and deletes old recordings automatically when they reach a particular age (again, configurable) or when disk space gets low.

Audio Logger can record line-in signals from any DirectSound (WDM), WASAPI or ASIO compliant sound card. Stereo inputs can be split into mono internally if required.

As an alternative to soundcard line-in signals, Audio Logger can also download and record Shoutcast/Icecast/WMA streams.

Audio Logger supports a variety of audio formats for output, including WAV, MP3 and Ogg Vorbis (subject to codecs available on your PC and in your country).

You can configure a silence threshold for each slot. Audio Logger can send an e-mail when the audio drops below this level for a given duration (and when the signal is restored again), and make HTTP calls to external surveillence systems to report those conditions.

With the streaming option, the audio from each slot can be streamed to a Shoutcast or Icecast compatible streaming server.

Using the built-in web interface, you can access and download the recordings straight from your web browser.

The built-in web server includes a REST API that can be used to access status and recording information from third-party software, or to build a monitoring and silence detection solution with Nagios or Icinga.