TSX - Time Scaling

AudioScience’s TSX time scaling technology can be used independently on any or all audio  playback streams to expand or compress audio in real-time by up to 20%*, while preserving pitch and clarity.  TSX can also be used in conjunction with any of the compression formats supported by ASI6000 adapters, including MPEG-1 Layer2 and MP3.

The algorithm is available to Windows software developers through the AudioScience wavX extensions to the Microsoft WAVE API or the AudioScience HPI interface.  Linux developers are able to access it through the AudioScience HPI interface. 

The AudioScience Livewire driver also supports TSX. This is controlled by a Telnet session. The appropriate command to start a telnet session is:

telnet 127.0.0.1 93

then send a command of the format

SRC DD ASI-TSX:”PP”

where DD is the Livewire source number (which equates to a WDM play device) and PP is the percentage of ordinal file time apply. For example:

SRC 1 ASI-TSX:”99.4”

would adjust the playback speed on the first WDM playback device to be 99.4 %. File playback will complete sooner than it would without time scaling.

* While the settings range from ±20 percent, the extremes of that range will generally work with speech but no as well with music.  ±10 should be used for music.