Authors may submit proposals in three categories:
1. Complete-manuscript peer-reviewed convention papers (submit at www.aes.org/138th_authors)
2. Abstract-precis-reviewed convention papers (submit at www.aes.org/138th_authors)
3. Synopsis-reviewed engineering briefs (submit at www.aes.org/138th_ebriefs)

Category 1 and 2 proposals are to be submitted electronically to the AES 138th proposal submission site at www.aes.org/138th_authors by 2014 December 9.

For the complete-manuscript peer-reviewed convention papers (category 1), authors are asked to submit papers of 4–10 pages to the submission site. Papers exceeding 10 pages run the risk of rejection without review. These complete-manuscript papers will be reviewed by at least two experts in the field, and authors will be notified of acceptance by 2015 January 23. Final manuscript with revisions requested by the reviewers have to be submitted before 2015 February 12. If rejected as a convention paper (Cat. 1), the proposal may still be accepted for categories 2 or 3.

For abstract-precis-reviewed proposals (Cat. 2), a title, 60-to 120-word abstract, and 500- to 750-word précis of the proposed paper must be submitted by 2014 December 9. Authors will be notified of acceptance by 2015 January 6, and the authors must submit their final manuscripts (4 to 10 pages) before 2015 February 12. If rejected from this category, the proposal may be still be accepted as an engineering brief (Cat. 3).

Both complete-manuscript peer-reviewed papers (Cat. 1) and abstract-precis-reviewed papers (Cat. 2) will be available at the convention in a full set of PDFs of convention papers, and they will be added later to the AES E-Library (www.aes.org/e-lib). If a paper is longer than 10 pages, the author will be charged a fee of $25 for every page over 10.

For engineering briefs (Cat. 3), authors must supply a short synopsis to 138th_ebriefs@aes.org by 2015 February 12 to indicate their desire to present an engineering brief, followed later by an electronic manuscript. These manuscripts will be freely available in the AES E-Library to AES members, and there will be no paper copies. Topics for the engineering briefs can be very wide-ranging. Relaxed reviewing of submissions will consider mainly whether they are of interest to AES convention attendees and are not overly commercial. PDF manuscripts of 1–5 pages following the prescribed template must be emailed (address will be sent to authors) by 2015 March 20.

Presenting authors (one per paper for all 3 categories) will be required to pay the full convention registration fee (member and student member rates are lower than nonmember rates), and only then will the presenting author receive a free copy of the complete set of PDFs of the convention papers. Presenting authors who are student members and whose convention papers (Cat. 1 or 2) are accepted will be eligible for the Student Paper Award at the 138th; peer-reviewed Cat. 1 papers are given preference by the award judges. During the online submission process you will be asked to specify whether you prefer to present your paper in a lecture or poster session. Highly
detailed papers are better suited to poster sessions, which permit greater interaction between author and audience. The convention committee reserves the right to reassign papers to any session, lecture or poster. The submission sites, www.aes.org/138th_authors (Cat. 1 and 2) and www.aes.org/138th_ebriefs (Cat. 3), will be available by early November.