This paper investigates the performance of a piezoelectric MEMS-based microspeaker. The performance is compared to the state of the art in terms of electrodynamic microspeakers for mobile applications. The analysis is twofold: First, the mechanical behavior is evaluated using laser interferometry and discussed for different stimuli such as sine sweeps or static sinusoidal excitation. Second, the acoustic performance is assessed by way of measurements under anechoic conditions. Results show that the speaker performs well for its size while providing low power consumption. However, in order to achieve high broadband reproduction quality, further design improvements are necessary.

Authors: Männchen, Andreas; Beer, Daniel; Niekiel, Florian; Nowak, Johannes; Stoppel, Fabian; Wagner, Bernhard
Affiliations: Fraunhofer Institute for Digital Media Technology IDMT, Ilmenau, Germany; Fraunhofer Institute for Silicon Technology ISIT, Itzehoe, Germany(See document for exact affiliation information.)
AES Convention: 143 (October 2017) Paper Number: 9875
Publication Date: October 8, 2017
Subject: Transducers

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.