Dates of Future Meetings of the Society

26-30 November 1979 Salt Lake City, Utah Chairman: William J. Strong Technical Program Chairman: E. Paul Palmer

Department of Physics and Astronomy Brigham Young University Provo, Utah 84602 !

(801) 374-1211, Ext. 2230 or 4361

21-25 April 1980 Chairman: Clifford R. Bragdon 18-21 November 1980

Chairman: Richard Stern

18-22 May 1981 Chairman: Tony F. W. Embleton

Deadline for receipt of abstracts: * 20 August 1979

*For instructions on preparation of Meeting abstracts, see J. Acoust. Soc. Am. 66, 610 (1979).

Atlanta, Georgia

Los Angeles, California

Ottawa, Ontaxio

Special notice' ASA meeting papers Instructions for the preparation of abstracts for papers to be

presented at meetings of the Acoustical Society of America are mailed to all members with meeting announcements. For the benefit of nonmembers who submit abstracts and for members who wish to have a permanent reference, instructions and a sam- ple abstract are published below. Adherence to these instructions will be very helpful to meeting chairmen and insure that programs will be mailed well in advance of meetings. BETTY H. GOODFRIEND

Administrative Secretary

Preparation of abstracts

(1) An abstract in four copies is required for every meeting paper. One copy must be an original. The four copies must be received by the technical program chairman of the meeting by the deadline date. (Deadline dates are given in the Acoustical News- USA section of every issue of the Journal.)

(2) Limit abstract to 200 words. This includes title and first author's name and address (names and addresses of coauthors need not be counted). Display formulas--those set apart from the text--are counted as 40 words.

(3) Title of abstract and names and addresses of authors should be set apart from the abstract. Text of abstract should be in one single, indented paragraph. Type double spaced on one sheet of 8V,- X 11-inch nonerasable bond paper.

(4) To simplify later indexing, please adopt one form of name, consistent with that used on your JASA manuscripts, when submitting several abstracts. For example, stick with John J. Doe and do not use J. J. Doe or John Doe on subsequent ab- stract or manuscript submissions to either the Program or JASA. (Librarians and literature researchers prefer that the first name be spelled out.)

(5) Be sure the address given is complete. The acceptance or rejection notice is mailed to this address.

(6) To insure that formulas are understood, note meanings of figures in margin on abstract; e.g., "1" should be identified as the number one or the letter "ell"; "0" should be identified as zero or the capital letter "oh." Phonetic symbols should be noted as such in the margin.

(7) Do not use footnotes. Use square brackets for citing refer- ences or for support acknowledgment. Give references in format required for the Journal

(8) Underline nothing except what you wish to see italicized.

(9) The following information should be given at the bottom of the abstract:

(a) Technical Committee(s) most appropriate for the sub- ject matter (see Acoustical News section of the Journal for names of Technical Committees). Psychological and physiological papers should be additionally classified as either psychological or physiological acoustics.

(b) Physics and Astronomy Classification Scheme (PACS) number(s) under which the abstract might be indexed (see June or December issues of the Journal, beginning in 1977, for the PACS scheme).

(c) Telephone number of most accessible author.

(d) Special equipment you need other than Vu-Graphs for transparencies or the usual projectors for 2 X 2 slides.

(10)Questions concerning the preparation of abstracts should be directed to the senior copy editor of the Journal, who can be reached at (212) 949-0100, extension 501.

(11) Most Important: Give a copy of these instructions to your secretary.

Binaura! loudness summation for tones and noise. A. B. Sea and I. J. Knox (Department of Psychology, Northeastern University, Boston, MA 02115)

The relation between binaural and monaural loudness was meesured by magnitude estimation for a 1000- Hz tone and for white noise. Four types of stimuli-monaural and binaural tone, monaural and binaural noise= were presented at eight levels, in mixed, randomly selected sequences. Subjects were instructed to rate the four stimuli according to a single loudness scale. The loudness of the monaural and binaural tones was a power function of sound pressure with an exponent near 0.5. The loudness of the noise increased more rapidly at low levels than that of the tone; at high levels, it increased more slowly. The bow shape of the noise func- tion would be predicted from loudness matches between wide-band and narrow-band stimuli. A binaural sound was 1.3 to 1.7 times louder than a monaural sound at the same SPL. The results of these direct loud- ness estimations agreed almost perfectly with earlier results [D. E. McGee and I. J. Knox, J. Acoust. Soc. Am. 57, 55-62 (1975)] from another group of subjects who made loudness matches between binaural and monaural stimuli. [Work supported by NSF.]

Technical Committee: Psychological and Physiological Acoustics--Psychological PACS number(s): 43.66.Cb, 43.66.Pn Telephone number: (212)936-3838 (I. J. Knox) Special facilities: 16-mm movie projector

610 J. Acoust. Soc. Am. 66(2), Aug. 1979; 0001-4966/79/080610-01500.00; ¸ 1979 Acoust. Soc. Am.; Acoust. News--USA 610

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