Intermodulation distortion caused by the rate of change of the signal is reported as measured on a multi-span radio relay chain carrying broadcast sound signals, on a stereophonic broadcast FM transmitter/receiver path, and on three audio mixing consoles. The distortion, measured with the DIM (Dynamic InterModulation) method, ranges from a percent up to forty percent for nominal signal levels under conditions where the conventionally measured total harmonic distortion is a fraction of a percent. As the composition of the measurement signal closely resembles real-life signals, the present results suggest that this effect may be of significance in sound recording and broadcasting.

Authors: Otala, Matti; Hämäläinen, Sulo; Rantala, Kalevi
Affiliations: Technical Research Centre of Finland, Oulu, Finland ; Finnish Broadcasting Company, Helsinki, Finland(See document for exact affiliation information.)
AES Convention: 73 (March 1983) Paper Number: 1988
Publication Date: March 1, 1983

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.

Subscribe to this discussion

To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.

Start a discussion!

If you would like to start a discussion about this paper and are an AES member then you can login here:
Username:
Password:

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.