Practical speech communication uses only a small slice of hearing’s full range
Evidence
Although the full functional range of hearing is vast, about 130 dB for the level and 20 Hz to 20 kHz for frequency, a much smaller area of the total range is utilized in practical communication situations. For acoustic music the effective range is about that shaded light grey in Figure 9.2. In speech communication the most basic range is still more limited. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 983
Although the full functional range of hearing is vast, about 130 dB for the level and 20 Hz to 20 kHz for frequency, a much smaller area of the total range is utilized in practical communication situations. For acoustic music the effective range is about that shaded light grey in Figure 9.2. In speech communication the most basic range is still more limited. For example, the frequency range for understandable speech communication over a telephone connection is from about 300 Hz to about 3.4 kHz and the amplitude range is typically 40-70 dB (the darker shade in Figure 9. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 983
Categorization
- XREF: Directly relevant to understanding why communication systems target narrow bands; connects to Milgrom trade-range and bandwidth work and general info-theoretic design. — connects to: The human auditory system is the hardest link in the communication chain. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 120; Intelligible speech needs only a small fraction of its time-frequency units; Most modern cochlear implant patients achieve telephone conversation ability — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 2765
- corroborated: 3 independent passages support this claim — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 983