A New Principle of Sound Frequency Analysis (1932)
NASA Technical Reports Server (NTRS) · leaf 11
a subsecjuent report. This record illustrates strikingly the great resolving To show the variety of problems in which the analyzer power of the instrument. The record extends from is a convenient and very powerful means of investiga- 0 to 3,000 cycles per second. The harmonics appear tion, a few… … Figure 9— The complete sound recorder in experimental form records are presented also for the purpose of indicating near 0. The slight crowding of the scale at the upper the properties of the analyzer. range is due to the fact that the beat-frequency oscil- The first record obtained wdth the…
NASA Technical Reports Server (NTRS)
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