Acon Digital Media has released Studio Time, a collection of DirectX plug-ins for time scale and pitch modifications. They claim that this is "the first commercially available DirectX compatible plug-in suite to offer virtually artifact free and real-time time scale modification". It consists of the following plug-ins:

• StudioTime, a time scale modification (time stretching) plug-in with unsurpassed audio quality.
• StudioPitch, a pitch modification plug-in that allows pitch shifts with optional tempo and timbre preservation.

Both plug-ins are based on Acon Digital Media's time scale modification technology, and claim excellent results even for large modification factors. The algorithm is not limited to one special type of audio material like many other existing algorithms and works well for both rhythmical and tonal audio material as well as for complete mixes.

The plug-ins support multi-channel audio up to eight channels, including 5.1 and 7.1 surround formats. Both PCM formats (up to 32 bit resolution) and floating point (IEEE 32 bit) formats are supported.

Studio Time can be purchased online for US$119. A demo version and audio examples are available.