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formats. n-Track Studio supports stereo and mono audio files of any sampling
frequency, with 16, 24 or 32-bit depth. n-Track also supports Wave64 files
which allow for file sizes greater than 2 Gb.
Standard MIDI file
Extension: .mid
Standard MIDI files contain sequences of musical notes. The main difference
from .wav files is that while .wav files contain a representation of an acoustic
signal, MIDI files contain the sequence of the notes played on an instrument.
For example, a MIDI track of a piano recording contains only the sequence of
notes (described as note number, velocity with which the key was pressed,
time at which it was pressed and duration of the note) played by the pianist.
The corresponding .wav file contains the acoustic signal emitted by the piano.
The difference between a .wav and a MIDI file is basically the same as between
a recording of a concert and the concert‟s sheet music. The .wav file obviously
contains much more information than just the sequence of notes; for this
reason, .wav files are typically much bigger than MIDI files. n-Track Studio can
both import standard MID files into MIDI tracks and export the current song‟s
MIDI tracks to standard MIDI files.
Peak file
Extension: .npk
n-Track Studio creates peak files to speed up the displaying of audio files‟
waveforms on the timeline. Normally, the program generates the .npk files
during recording. These files are not critical, as the information in them is
contained in the audio files they were created from. If you accidentally delete
an .npk file, the program will recreate it the next time it has to display the
associated audio file‟s waveform.
Packed song file
Extension: .sgw
Packed song files are a special kind of song file. Like an .sng file, an .sgw file
contains the structure of the song. A packed song file, however, also contains
the audio data used for the song‟s tracks. Thus, a .sgw file can be used to save
and transfer a whole song as a single file, without having to worry about
transferring the .wav files associated with the .sng file. Packed song files are
mainly useful for archiving or transferring songs from one computer to
another. When the program opens a .sgw file it still has to recreate the .sng
and .wav files structure, so the .sgw format is not useful for saving songs while
you‟re actively working on them. The audio data contained in .sgw files can be
either uncompressed or compressed.
MP3 compressed audio file
Extension: .MP3