Main n-Track Studio features:

Records and plays back a virtually unlimited number of audio and MIDI tracks
DirectX, VST and ReWire effects can be added to each channel/track
Built-in effects include Reverb, Compression, Parametric and Graphic EQ, Echo, Auto-volume, Pitch Shift, Chorus, Multiband Compression, Spectrum analyzer
Supports 16 and 24 bit single and multichannel soundcards at sampling frequencies up to 192 Khz using Asio, WaveRT, WDM, MME and DirectSound
Is compatible with multichannel Asio, WaveRT, WDM and MME audio drivers, which means that n-Track can work with almost any soundcard available today with the lowest possible latency
Supports VST Instruments and DirectX Instruments synth plug-ins. Sample-accurate MIDI tracks can be sent to VSTi/DXi software MIDI synths, without the need of expensive hardware MIDI synths.
Supports surround mixing for creating DVD audio projects using 5.1, 6.1 and 7.1 channels surround formats.
Realtime Audio effects can be added to each channel.
Adjust the effect settings and listen to the result in real time.
Built-in effects include Reverb, Compression, Parametric and Graphic EQ, Echo, Auto-volume, Pitch Shift, Chorus, Multiband Compression, Spectrum analyzer.
Supports third party DirectX, VST 2.0 and ReWire plug-ins.
Supports 16 and 24 bit single and multichannel soundcards at sampling frequencies up to 192 Khz using Asio, WaveRT, WDM, MME and DirectSound.
Supports VST Instruments and DirectX Instruments synth plug-ins. Sample-accurate MIDI tracks can be sent to VSTi/DXi software MIDI synths, without the need of expensive hardware MIDI synths.
Input processing allows to process with plug-ins live signals. Record the 'dry' (unprocessed) signal while processing and reprocess the recording later - i.e. Play a guitar through a distortion plug-in then change the distortion after the recording!

More Features:

Supports surround mixing for creating DVD audio projects using 5.1, 6.1 and 7.1 channels surround formats
Each audio track includes a 20 bands parametric EQ with graphical frequency response view, a full spectrum analyzer and an automatic instrument tuner. Up to 32 aux channels with fully automated sends and returns.
Multiple input and output soundcards or more than one soundcard are supported. You can record multiple tracks at a time and output to more than one stereo output. Each output channels has its own master channel effects and volume control.
Supports technology by Propellerhead Software AB. Mix signals in realtime with n-Track's own channels from other programs (such as Reason, Ableton Live, Fruityloops and many others).
Import and export .wav, .mp3, .wma, .mid, .ogg, .flac, .aiff, .cda, .sng, .sgw audio files
Import and export EDL multitrack song files for exchanging songs with other multitrack programs
Sync to other programs or external devices using SMPTE/MTC or MIDI Clock sync, acting either as master or slave
Loads and saves MIDI tracks to standard MIDI files
Play Videos (AVI, MPEG) in sync with the song in a dedicated video playback window
Volume, pan, aux sends and returns and effects parameters can be automated. You can "program" fade-in/outs, cross fades, boost the volume of a track when there is a solo etc.

Whats New:

Fixed crash on opening n-Track Parametric EQ (Windows) [Bug fix]
Fixed Instrument browser doesn't show the 32 bit plug-ins list when using n-Track 64 bit [Bug fix]
Fixed error on opening 32 bit AU plug-ins when using n-Track 64 bit (Mac) [Bug fix]