AES E-Library

AES E-Library

Necessary Delay and Non-Causal Identification for Online Loudspeaker Modelling Considering Voice Coil Inductance

The authors revisit the topic of online electrical system identification with adaptive filters for dynamic loudspeakers and investigate into the causality of the plant loudspeaker systems to be identified. The effects of the non-causal portion of plant system are analyzed and simulated results establish the link between the non-causality in impulse response and the voice coil inductance. The improvements of introducing necessary delay to the desired signal are proposed to enable the characterization of such non-causality. The proposed architecture with small delay extends the working bandwidth of online loudspeaker system identification and improves the accuracy of existing adaptive identification schemes without delays, which are traditionally restricted to run at low frequency bands.

AES Convention: Paper Number:
Publication Date:

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!

AES - Audio Engineering Society