IEEE 269 2010
$63.38
IEEE Standard Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets
Published By | Publication Date | Number of Pages |
IEEE | 2010 | 173 |
Revision Standard – Active. Practical methods for making laboratory measurements of electroacoustic characteristics of analog and digital telephones, handsets and headsets. 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. This edition incorporates IEEE Std 269a-2007. Other substantive changes have been made since the 2002 edition. This document contains sound files. If not delivered with PDF, are available at http://standards.ieee.org/downloads/269/269-2010/
PDF Catalog
PDF Pages | PDF Title |
---|---|
1 | IEEE Std 269ā¢-2010 , Front cover |
3 | Title page |
6 | Introduction Notice to users Laws and regulations Copyrights Updating of IEEE documents |
7 | Errata Interpretations Patents Participants |
9 | Contents |
11 | IMPORTANT NOTICE 1. Overview |
12 | 1.1 Scope 1.2 Purpose 1.3 Contents of standard |
13 | 1.4 Changes since last edition of this standard 2. Normative references |
15 | 3. Definitions, acronyms and abbreviations, symbols 3.1 Definitions |
18 | 3.2 Abbreviations and acronyms |
19 | 3.3 Symbols |
20 | 4. Test equipment and setup 4.1 Ear simulators 4.1.1 Selection |
21 | 4.1.2 Measurements made on the Type 3.3 ear simulator compared to real ears 4.1.3 Translation from DRP to ERP 4.1.4 Translation from DRP to free field 4.2 Mouth simulators |
22 | 4.3 Test fixtures 4.3.1 Selection 4.3.2 Handset positioning |
25 | 4.3.3 Headset positioning |
26 | 4.3.4 Headset measurement repeatability and averaging 4.4 Measurement microphones |
27 | 4.5 Test environment 4.5.1 Background noise level 4.5.2 Reflection-free conditions 4.5.3 Diffuse field conditions |
28 | 4.6 Acoustic impairments |
29 | 4.6.1 Reference corner 4.6.2 Hoth room noise |
30 | 5. Calibration 5.1 General 5.2 Electrical components and measurement instruments 5.3 Measurement microphones 5.4 Ear simulator 5.5 Measurement bandwidth and resolution 5.6 Electrical test signals |
31 | 5.6.1 Electrical test spectrum 5.6.2 Electrical test level |
32 | 5.7 Mouth simulator 5.7.1 Acoustic test spectrum 5.7.2 Acoustic test level 5.7.3 Mouth simulator calibration procedure |
34 | 6. Test procedure for analog sets 6.1 General 6.1.1 Choice of test signals and levels |
35 | 6.1.2 Measurement bandwidth and resolution 6.1.3 Choice of ear and mouth simulators and test position 6.1.4 Tone control setting 6.1.5 Reference receive volume control setting |
36 | 6.1.6 Reference send gain control setting 6.2 Analog DC feed circuits |
38 | 6.3 Analog telephone network impairments 6.3.1 Loop current 6.3.2 Network noise 6.3.3 Termination impedance |
39 | 6.3.4 Test loops 6.3.5 Parallel sets |
41 | 6.3.6 Cordless range 6.4 Receive 6.4.1 Receive frequency response 6.4.2 Acoustic output level |
42 | 6.4.3 Conversational gain 6.4.4 Tonal balance 6.4.5 Receive noise 6.4.6 Receive narrow-band noise |
43 | 6.4.7 Receive linearity 6.4.8 Receive distortion 6.4.9 Receive mute leakage |
44 | 6.5 Send 6.5.1 Send frequency response 6.5.2 Send noise 6.5.3 Send narrow-band noise |
45 | 6.5.4 Send linearity 6.5.5 Send distortion 6.5.6 Send mute leakage |
46 | 6.5.7 Send frequency response in a diffuse field 6.5.8 Send signal-to-noise ratio 6.6 Sidetone 6.6.1 Talker sidetone frequency response |
47 | 6.6.2 Listener sidetone frequency response 6.6.3 Sidetone linearity |
48 | 6.6.4 Sidetone distortion 6.6.5 Sidetone delay 6.6.6 Sidetone echo response 6.7 Overall 6.7.1 Overall frequency response |
49 | 6.7.2 Overall linearity 6.7.3 Overall distortion 6.8 Telephone set impedance 6.8.1 AC impedance 6.8.2 Return loss |
50 | 6.9 Howling 6.10 Maximum acoustic output |
51 | 6.10.1 Maximum acoustic pressure (long duration) 6.10.2 Peak acoustic pressure (short duration) |
52 | 7. Test procedures for digital and 4-wire systems 7.1 General 7.1.1 Choice of test signals and levels |
53 | 7.1.2 Measurement bandwidth and resolution 7.1.3 Choice of ear and mouth simulators and test position 7.1.4 Tone control setting |
54 | 7.1.5 Reference receive volume control setting 7.1.6 Reference send gain control setting 7.2 Digital test circuits 7.2.1 Digital telephone interface |
56 | 7.2.2 Reference codec |
57 | 7.2.3 Wideband reference codec 7.3 Digital telephone network impairments 7.3.1 Network delay |
58 | 7.3.2 Jitter 7.3.3 Network packet loss 7.3.4 Network echo canceller 7.3.5 Discontinuous speech transmission |
59 | 7.4 Receive 7.4.1 Receive frequency response 7.4.2 Acoustic output level |
60 | 7.4.3 Conversational gain 7.4.4 Tonal balance 7.4.5 Receive noise 7.4.6 Receive narrow-band noise 7.4.7 Receive linearity |
61 | 7.4.8 Receive distortion 7.4.9 Receive mute leakage 7.4.10 Receive delay 7.4.11 Receive out-of-band signals |
62 | 7.5 Send 7.5.1 Send frequency response. 7.5.2 Send noise 7.5.3 Send narrow-band noise |
63 | 7.5.4 Send linearity 7.5.5 Send distortion 7.5.6 Send mute leakage |
64 | 7.5.7 Send delay 7.5.8 Send out-of-band susceptibility 7.5.9 Send frequency response in a diffuse field |
65 | 7.5.10 Send signal-to-noise ratio 7.6 Sidetone 7.6.1 Talker sidetone frequency response 7.6.2 Listener sidetone frequency response |
66 | 7.6.3 Sidetone linearity 7.6.4 Sidetone distortion 7.6.5 Sidetone delay |
67 | 7.6.6 Sidetone echo response 7.7 Overall 7.7.1 Overall frequency response 7.7.2 Overall linearity 7.7.3 Overall distortion |
68 | 7.8 Echo frequency response 7.9 Temporally weighted terminal coupling loss |
69 | 7.10 Stability loss |
70 | 7.11 Convergence time 7.12 Discontinuous speech transmission 7.12.1 General |
71 | 7.12.2 Measurement method 7.13 Maximum acoustic output |
72 | 7.13.1 Maximum acoustic pressure (long duration) 7.13.2 Peak acoustic pressure (short duration) |
73 | 8. Test procedures for Analog 4-wire handsets and headsets 8.1 General |
74 | 8.1.1 Choice of test signals and levels |
75 | 8.1.2 Measurement bandwidth and resolution 8.1.3 Choice of ear and mouth simulators and test position 8.1.4 Tone control setting 8.1.5 Default receive volume control and send gain adjustment 8.2 Handset and headset test circuits |
77 | 8.3 Receive 8.3.1 General 8.3.2 Receive volume control adjustment |
78 | 8.3.3 Receive frequency response 8.3.4 Acoustic output level |
79 | 8.3.5 Conversational gain 8.3.6 Tonal balance 8.3.7 Receive noise 8.3.8 Receive narrow-band noise 8.3.9 Receive linearity |
80 | 8.3.10 Receive distortion 8.3.11 AC impedance 8.3.12 DC resistance 8.4 Send 8.4.1 Send gain control adjustment |
81 | 8.4.2 Send frequency response 8.4.3 Send noise 8.4.4 Send narrow-band noise |
82 | 8.4.5 Send linearity 8.4.6 Send distortion 8.4.7 Send frequency response in a diffuse field |
83 | 8.4.8 Send signal-to-noise ratio 8.4.9 AC impedance 8.4.10 DC resistance 8.5 Echo frequency response |
84 | 8.6 Maximum acoustic output |
85 | 8.6.1 Maximum acoustic pressure (long duration) 8.6.2 Peak acoustic pressure (short duration) |
86 | Annex A (normative) Ear simulators with flexible pinnas and positioning devices |
88 | Annex B (normative) Alternative ear simulators, mouth simulator and test fixture |
92 | Annex C (normative) DRP to ERP and related translations |
95 | Annex D (normative) Hoth room noise |
97 | Annex E (normative) Test signals |
108 | Annex F (normative) Levels |
111 | Annex G (normative) Analysis methods |
119 | Annex H (normative) Loudness rating calculations |
121 | Annex I (normative) Power and voltage summations |
126 | Annex J (normative) Receive level, conversational gain, and frequency response metrics |
131 | Annex K (normative) Linearity |
136 | Annex L (normative) Distortion |
146 | Annex M (normative) Send signal-to-noise ratio |
148 | Annex N (normative) Delay |
150 | Annex O (normative) Sidetone echo |
151 | Annex P (normative) Maximum acoustic output (long duration)āalternate method |
154 | Annex Q (normative) Temporally weighted terminal coupling loss measurment |
158 | Annex R (normative) Temporally weighted terminal coupling loss algorithm |
162 | Annex S (normative) Simulated speech generator (SSG) |
165 | Annex T (normative) TDS sweep with P.50 noise burst |
166 | Annex U (normative) Conditioning for carbon transmitters |
167 | Annex V (normative) Measurements on telephones with amplified receivers |
168 | Annex W (informative) Useful conversion procedures |
170 | Annex X (informative) Perceptual evaluation of speech quality (PESQ) |
171 | Annex Y (informative) Loudness balance subjective test procedures |