{"id":82154,"date":"2024-10-18T03:01:56","date_gmt":"2024-10-18T03:01:56","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-269a-2012\/"},"modified":"2024-10-24T19:49:17","modified_gmt":"2024-10-24T19:49:17","slug":"ieee-269a-2012","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-269a-2012\/","title":{"rendered":"IEEE 269a 2012"},"content":{"rendered":"

Amendment Standard – Active. Practical methods for making laboratory measurements of electroacoustic characteristics of analog and digital telephones, handsets, and headsets are presented. The methods may also be applicable to a wide variety of other communications equipment, including cordless, wireless, and mobile communications devices. Measurement results may be used to evaluate these devices on a standardized basis. Application is in the frequency range from 100 Hz to 8500 Hz.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nIEEE Std 269a-2012 Front cover
\n <\/td>\n<\/tr>\n
3<\/td>\nTitle page
\n <\/td>\n<\/tr>\n
6<\/td>\nNotice to users
Laws and regulations
Copyrights
Updating of IEEE documents
Errata
Patents <\/td>\n<\/tr>\n
8<\/td>\nParticipants <\/td>\n<\/tr>\n
10<\/td>\nIntroduction <\/td>\n<\/tr>\n
11<\/td>\nContents <\/td>\n<\/tr>\n
13<\/td>\nIMPORTANT NOTICE <\/td>\n<\/tr>\n
14<\/td>\n2. Normative references
3. Definitions
4. Test equipment and setup
4.1 Ear simulators <\/td>\n<\/tr>\n
16<\/td>\n6. Test procedure for analog sets
6.5 Send
6.8 Telephone set impedance
7. Test procedures for digital and 4-wire systems
7.2 Digital test circuits <\/td>\n<\/tr>\n
17<\/td>\n7.5 Send
8. Test procedures for analog 4-wire handsets and headsets
8.4 Send <\/td>\n<\/tr>\n
18<\/td>\nAnnex E (normative)
\nTest signals
E.6 Speech-like signals <\/td>\n<\/tr>\n
19<\/td>\nAnnex G
\n(normative) Analysis methods
G.6 Measurement bandwidth <\/td>\n<\/tr>\n
20<\/td>\nAnnex J (normative)
\nReceive level, conversational gain, and frequency response metrics
J.4 Conversational gain
J.5 Tonal balance <\/td>\n<\/tr>\n
23<\/td>\nAnnex L (normative)
\nDistortion
L.3 Pulsed noise signal-to-distortion-and-noise ratio (PN-SDNR) <\/td>\n<\/tr>\n
25<\/td>\nAnnex M (normative)
\nSend signal-to-noise ratio ambient noise reduction and its effects on speech quality
M.1 General
M.2 Overview of metrics <\/td>\n<\/tr>\n
26<\/td>\nM.3 Metrics <\/td>\n<\/tr>\n
28<\/td>\nM.4 Measurement setup and calibration <\/td>\n<\/tr>\n
30<\/td>\nM.5 Collection of signals to be measured <\/td>\n<\/tr>\n
32<\/td>\nM.6 Choice of test signals <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

IEEE Standard Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets–Amendment 1<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEEE<\/b><\/a><\/td>\n2012<\/td>\n33<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":82155,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-82154","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-ieee","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/82154","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/82155"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=82154"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=82154"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=82154"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}