The key features are:

• The best sound quality of all realtime software samplers
• SoundFont 2 files are loaded and played correctly (this is rare - 99% of the other players don't play the loops right for example)
• Sample layering and keyboard splits possible
• High quality built-in effects
• Loads XS-1 samples (.XS1), Soundfont 2 files (.SF2), PCM Waves (.WAV)
• 4 parts, keyboard splits / part layering possible

Synthesis features:

• Super Dooper sound quality
• SSE acceleration using XDSP technology
• Unlimited number of key/velocity zones per voice
• Volume and Modulation envelopes with attack, hold, decay, sustain, release key to hold and key to decay parameters. Modulation envelope can modulate pitch and filter cutoff.
• Vibrato and Modulation LFOs with delay, frequency and depth parameters. Modulation envelope can modulate pitch, filter cutoff and volume.
• Four filter types: 12dB/oct and 24dB/oct lowpass, 12dB/oct and 24dB/oct highpass
• Reverb/chorus send level
• High quality / extra high quality interpolation
• Monophonic mode with retrig switch and portamento time control.
• Tuning, volume, pan, key range, transpose, pitch wheel range controls for each part
• MIDI Velocity to volume, velocity to filter cutoff
• MIDI support: note on/off, sustain pedal, pitch bend, modulation wheel, channel volume

Global settings:

• Master volume, polyphony (max 127), master tune
• Effects: Reverb, chorus, delay, eq, distortion, degrader
• Supported output samplerates: 44.1KHz, 48KHz, 88.2KHz, 96KHz
• 8 Buzz parameters assignable to any of the xs1 parameters
• Tracker commands: volume slide up/down, portamento up/down, tone portamento, pan offset, arpeggio, note cut, note delay, note retrig

New in this version:

• Maximum polyphony increased to 1000
• .sf2/.wav to .xs1 converter integrated to XS-1 (right-click on the background)
• Sample-not-found crash fixed