echo gain-in gain-out <delay decay>
delay (time), and
the loudness of the reflected signal is the decay. Multiple
echoes can have different delays and decays.
Each given delay decay pair gives the delay in milliseconds and
the decay (relative to gain-in) of that echo. Gain-out is the
volume of the output. For example: This will make it sound as
if there are twice as many instruments as are actually playing:
echo 0.8 0.88 60 0.4 |
If the delay is very short, then it sound like a (metallic) robot playing music:
echo 0.8 0.88 6 0.4 |
A longer delay will sound like an open air concert in the mountains:
echo 0.8 0.9 1000 0.3 |
One mountain more, and:
echo 0.8 0.9 1000 0.3 1800 0.25 |