1. This pair of terms refers to a systems ability to reproduce a
full (hi-fi) or less than full (lo-fi) audio frequency spectrum
(20 to 20,000 Hz) and a favourable (hi-fi) or poor (lo-fi)
signal-to-noise ratio, normally applied to an amplifier or a
recording. A key determinant of fidelity is frequency response.
This is the measure of the output of a sound-producing body
stimulated with frequencies over a given range usually the
entire range of hearing (20 to 20,000 Hz). Also called a
resonance curve. The resonances of a musical instrument result
in an uneven frequency response of that instrument, whereas for
the ideal loudspeaker, the frequency response should be flat,
that is, all frequencies should be reproduced equally well to
achieve good fidelity. (Reduced from Barry Truax - Handbook for
Acoustic Ecology CD-ROM Edition. Cambridge Street Publishing,
1999 - CSR-CDR 9901) 2. R. Murray Schaffer introduced the
concept of a hi-fi and lo-fi soundscape. In a hi-fi soundscape,
we can clearly perceive sounds and t