ProTrekkr is a Tracker program with built in software synthesizer.

Its old name is NoiseTrekker by Juan Antonio Arguelles Rius aka Arguru. It is a tracker software that has its own software synthesizer and employs a traditional samples tracker which can (mainly) be used to create electronic music (like psytrance, trance goa, hard acid, IDM, chip, techno, etc.) for small sized intros, demos or games.

Main features:

• 16 multi-notes tracks (with 256 virtual channels).
• Samples editor (can load up to 64 bits stereo samples).
• Patterns based tracker style sequencer.
• Synthesizer with custom waveforms support.
• Samples loop editor.
• Two 303s units.
• Cubic spline interpolation.
• Wav files import/export.
• 16 or 32 bits wav rendering.
• Multi effects engine with reverb, distortion, filters, delay, EQs, flanger, etc...
• Fully customizable 10 combs reverb.
• Midi in/out support.
• Protracker .mod files import.
• Replay routine source code to be included & used inside your own programs (also featuring a replay routine for the PlayStation Portable).
• Winamp/XMPlay plugin available.

New in v2.5.4

• Input was partially disabled when caps lock was turned on
• Fixed 2 issues with interpolate command
• Using right mouse button on "pattern lines" arrows will now increase/decrease value by 8
• Changed the way the number of patterns is calculated when saving a song
• F5 to F9 keys now jumps to 0, 1/4, 2/4, 3/4, 4/4 of the patterns lines
• Fixed an issue in digibooster import function which was due to a MSVC compiler quirk

New in v2.5.3

• 303 units speeds can now be scaled.
• Added effects 26 & 27 (set reverb cutoff & resonance).
• Some notes were missed in multi-notes channels sometimes.
• Fixed a bug occuring with automatic note offs on the synth.
• Ptk can now import DigiBooster v1.x modules (.digi).
• could hang sometimes when calculating a song length.