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General Oscillations & Waves

  • H1-51: AUDIOTAPE 42 MIN - SCIENCE OF SOUND - SHORT VERSION

    H1-51
    Illustrate various audio phenomena.
    This is a copy of selected audio demonstrations from the Bell Telephone Laboratories recording "The Science of Sound." (H1-52) Topics include: Side 1: How we hear, Frequency, Pitch, Intensity, The Doppler Effect. Side 2: Echo and Reverberation, Delay Distortion, Fundamentals and Overtones, Quality, Filtered Music and Speech.

  • H1-52: AUDIOTAPE 82 MIN - SCIENCE OF SOUND - LONG VERSION

    H1-52
    Illustrate various audio phenomena.
    This is a classic, comprehensive set of audio demonstrations from the Bell Telephone Laboratories recording "The Science of Sound." Topics include: Side 1: How we hear, Frequency, Pitch, Vibration and Resonance, Intensity, Loudness, Noise Measurement, Masking, Echo and Reverberation, Delay Distortion. Side 2: Fundamentals and Overtones, Quality, Subjective Tones, Music or Noise, Filtered Music and Speech, Dissonance and Consonance, Music Scales, Vibrato and Tremolo, Doppler Effect.

  • H5-44: AUDIOTAPE 55 MIN - AUDIO DEMONSTRATIONS

    H5-44
    Illustrate a variety of audio demonstrations and effects.
    Side 1: Several types of organ pipes - pure tones, octave, Two steady pure tones - whole tone and half tone separation; 500 Hz and 2 kHz, left - 1 kHz right; Frequency modulated signals for pitch; Square and triangular wave frequency modulations; Beats (mistuned unison) at 1 kHz and 500 Hz; One steady frequency with one swept frequency; Beats (mistuned octave); Fundamental tracking; Beats - actual performance; Woodwind trio - two acoustical environments. Side 2: Broad band white noise - 20Hz-20kHz; Bands of white noise - various center frequencies and band widths; Five spoken and instrumental passages - recorded in anechoic chamber and played back in different acoustical environments; Narrow band noise signals and reverberation in hall measurements.
    H5