摘要:

Infant discrimination of synthetic voiced stop consonants, contrasting in place of articulation, was investigated using the high‐amplitude sucking paradigm. Discrimination of [dα]−[gα]contrasts, with and without release bursts, was compared. The results provide some evidence that the presence of a burst facilitates place discrimination by infants, perhaps by enchancing integrated spectral properties characteristic of the individual stop consonants.

ISSN:0001-4966    

DOI:10.1121/1.381810

出版商:Acoustical Society of America    

年代:1978

数据来源: AIP

摘要:

The earlier report that the frequency dependence of ultrasonic absorption of mammalian testis mimicked a single relaxation process is explained as an effect of ultrasonic beam width upon the transient thermoelectric technique. More detailed measurements show that the frequency dependence of the ultrasonic absorption in testis is much the same as the attenuation in other soft tissues, viz., α proportional tof1.1. The earlier finding that testis exhibits an ultrasonic absorption coeffieient significantly lower than reported for other tissues is confirmed.

ISSN:0001-4966    

DOI:10.1121/1.381811

出版商:Acoustical Society of America    

年代:1978

数据来源: AIP

摘要:

In this paper we describe a new principle which can be used to design condenser electret transducers. Contrarily to previously described systems, it does not require an air gap between the moving element (electret or electrode) and the back electrode. It utilizes the relative displacement of electrical charges imbedded in the electret during a nonhomogeneous deformation of the system, with respect to the electrodes of the condenser. This inhomogeneous deformation is obtained through the use of superimposed layers of different tensile moduli. We first describe this general principle and present some preliminary sensitivities.

ISSN:0001-4966    

DOI:10.1121/1.381812

出版商:Acoustical Society of America    

年代:1978

数据来源: AIP

ISSN:0001-4966    

DOI:10.1121/1.381939

出版商:Acoustical Society of America    

年代:1978

数据来源: AIP

ISSN:0001-4966    

DOI:10.1121/1.381940

出版商:Acoustical Society of America    

年代:1978

数据来源: AIP

ISSN:0001-4966    

DOI:10.1121/1.2033202

出版商:Acoustical Society of America    

年代:1978

数据来源: AIP

ISSN:0001-4966    

DOI:10.1121/1.2033204

出版商:Acoustical Society of America    

年代:1978

数据来源: AIP

ISSN:0001-4966    

DOI:10.1121/1.2033205

出版商:Acoustical Society of America    

年代:1978

数据来源: AIP

ISSN:0001-4966    

DOI:10.1121/1.2033207

出版商:Acoustical Society of America    

年代:1978

数据来源: AIP