A proposed new instrument is designed to give an instantaneous display of the nature of transient and nonrecurring signals. Both the amplitude and the frequency of the signal are plotted on a storage oscilloscope with a time lag of only one cycle. Frequency is obtained from a digital measurement of the period of a cycle. During each cycle, the reciprocal of the previous period is taken, converting the measurement to frequency. Amplitude is displayed as the positive peak value reached during the cycle previous to the moment of plotting. Examples of the display illustrate speech characteristics and the attack sounds of several musical instruments.
Author:
Partridge, Gordon R.
Affiliation:
General Radio Company, West Concord, MA
AES Convention:
31 (October 1966)
Paper Number:
441
Publication Date:
October 1, 1966
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.