Articles
| The tram bonus | |
| T. KACZMAREK, H. Hafke, A. Preis, S. Sandrock, B. Griefahn, T. Gjestland | 405-412 |
| Selected methods of pathological speech signal analysis | |
| W. WSZOŁEK | 413-430 |
| Contactless hearing aid designed for infants | |
| M. Kulesza, B. Kostek, P. Dalka, A. Czyżewski | 431-437 |
| Visual feedback based on expired CO2 as a therapy method for respiratory disturbances in stuttering | |
| B. Stankiewicz, B. Adamczyk, K. Zieliński, M. Darowski | 439-444 |
| MEL frequency cepstral coefficients (MFCC) of original speakers and their imitators | |
| W. Majewski | 445-449 |
| Changes of selected biochemical, physiological and densitometric parameters under low frequency vibration | |
| Z. Damijan | 451-460 |
| A new method for analysis of the modal characteristics of small rectangular rooms | |
| M. A. Błaszak | 461-469 |
| Scattering of ultrasonic wave on a model of the artery | |
| J. Wójcik, T. Powałowski, R. Tymkiewicz, A. Lamers, Z. Trawiński | 471-479 |
| Hydroacoustic activity of the ship propeller operation | |
| J. A. Szantyr, T. Koronowicz | 481-487 |
| Influence of vortices on a progressive quasi-plane acoustic wave | |
| A. Perelomova | 489-501 |
| Investigations of a noise control of a plate with four pairs of piezoelectric elemen | |
| J. Wiciak | 503-512 |
| PbFe1/2Nb1/2O3 ceramics as a base material for electromechanical transducers | |
| D. Bochenek, P. Wawrzała | 513-519 |
| An application of acoustic measurements to quality control of low power electrical motors | |
| M. Gibiec | 521-528 |
| On convergence and stability of adaptive active noise control systems | |
| M. Pawełczyk | 529-535 |
| Diffraction correction of frequency response for loudspeaker in rectangular baffle | |
| A. Dobrucki | 537-542 |
Technical Notes
| Modulation masking for recurrent low-noise noise masker | |
| D. J. Kutzner | 543-549 |
| Effect of cochlea damage on the detection of difference tone in signal envelope | |
| M. Kordus | 551-554 |
In Memoriam
| Professor Robert A. Mertens - In Memoriam | |
| A. Śliwiński | 555-556 |
Chronicle
| Acousto-Optics and Photoacoustics (AOPA) Conference of COO-SPIE Congress | |
| Antoni Śliwiński | 557-559 |
| XXIII Symposium on Hydroacoustics - Krynica Morska, May 23-26, 2006 | |
| Editorial Board Archives of Acoustics | 561-571 |
| Conference Speech Signal Annotation, Processing and Synthesis - Poznań, Poland 12-13 September 2006 | |
| Grażyna Demenko | 573-582 |