Simple Amplitude‐Stabilized Twin‐T Audio Oscillator

1960 ◽  
Vol 31 (2) ◽  
pp. 213-214
Author(s):  
C. Dean
Keyword(s):  
Audio Oscillator

The Audio-Oscillator

1927 ◽  
Vol 38 (2) ◽  
pp. 294 ◽  
Author(s):  
H. M. Halverson
Keyword(s):  
Audio Oscillator

A tuning-fork controlled audio-oscillator

1928 ◽  
Vol 5 (11) ◽  
pp. 361-363
Author(s):  
Claude L Lyons
Keyword(s):  
Tuning Fork ◽  
Audio Oscillator

AN AUDIO OSCILLATOR OF THE DYNATRON TYPE

1932 ◽  
Vol 3 (5) ◽  
pp. 230-234 ◽  
Author(s):  
Don Hale
Keyword(s):  
Audio Oscillator

Human Sound Frequency Preferences

1979 ◽  
Vol 49 (1) ◽  
pp. 324-326 ◽  
Author(s):  
Robin F. Patchett
Keyword(s):  
Sound Frequency ◽  
Control Knob ◽  
Audio Oscillator

205 subjects each chose a “most pleasant” sound delivered through an earphone by turning the control knob on a continuously variable audio oscillator. Most subjects chose a frequency in a relatively narrow (approximately 350 Hz) band centered on 399 Hz. The preferences did not appear to be influenced by sex or age.

Children's Phonatory Matching of Pure-Tone and Human Voice Stimulus

1983 ◽  
Vol 14 (2) ◽  
pp. 75-78
Author(s):  
Carl R. Schneiderman ◽  
Elizabeth C. Somerville
Keyword(s):  
Statistical Analysis ◽  
Pure Tone ◽  
Human Voice ◽  
Wide Range ◽  
Pure Tones ◽  
Audio Oscillator ◽  
Age And Sex

Thirty-six children were tested for their ability to vocally match both human voice and pure-tone stimuli. Spectrographic and statistical analysis of their tape-recorded responses revealed the majority of the children more closely approximated the human voice stimulus. The effects of age and sex of the children on their ability to match the two types of stimuli were also examined. The results of this study indicate that children are better able to match audiotape recordings of trained human voices modeling a wide range of calibrated frequencies than pure tones generated by an audio-oscillator.

A low‐cost audio oscillator

1978 ◽  
Vol 16 (5) ◽  
pp. 303-304
Author(s):  
John E. Peterson
Keyword(s):  
Low Cost ◽  
Audio Oscillator

Low-Drain Transistor Audio Oscillator

1952 ◽  
Vol 40 (11) ◽  
pp. 1385-1395 ◽  
Author(s):  
D. Thomas
Keyword(s):  
Audio Oscillator
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