/usr/share/ecasound/generic_oscillators is in ecasound 2.9.1-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | # --------------------------------------------------------------------
# ecasound / generic oscillator presets
# --------------------------------------------------------------------
#
# - all lines beginning with a '#' are ignored
# - '\' can be used to break long lines
# - preset format:
# "preset_number start_value end_value pos1 value1 pos2 value2 ..."
# - requirements:
# - all specified positions and values must be between 0.0 and 1.0
# - pos1 < pos2 < ... < posN
# - there must be a posN for every valueN
#
# --------------------------------------------------------------------
#
# a triangle wave - start=0.0, end=0.0, pos1=0.5, value1=1.00
0 = 0.0 0.0 0.5 1.00
# linear wave - start=0.0 end=1.0
1 = 0.0 1.0
# random bounces
2 = 0.5 0.5 0.2 0.1 0.3 0.7 0.4 0.1 0.5 0.9 0.6 0.05 0.8 0.9 0.2
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