TA 20
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Analogue and digital audio

TA 20 Analogue and digital audio
60268-3 MT 60268-4 Sound system equipment - Part 4: Microphones
60268-4 MT 60268-7 Sound system equipment - Part 7: Headphones and earphones
60268-5 MT 60268-16 Sound system equipment - Part 16: Objective rating of speech intelligibility by speech transmission index
60268-7 PT 60268-21 Sound system equipment – Loudspeakers - Acoustical (Output based) measurements
60268-3 MT 60268-22 Sound system equipment - Part 22: Electrical and mechanical measurements
60268-3 MT 62312 Guideline for synchronization of audio and video
Part 1-1: Measurement methods for synchronization of audio and video equipment and systems - General
Part 2: Methods for synchronization of audio and video systems
61998 MT 62574

Audio, video and multimedia systems - General channel assignment of multichannel audio

61998 MT 62760

Audio reproduction method for normalized loudness level

61998 PT 63034 Microspeakers
     
     
TA 20
Title

Analogue and digital audio

Scope

To preserve and develop international publications in the audio technical area within the scope of TC 100.

 

Members
Technical Area Manager Mr J. Woodgate UK  
Technical Secretary Mr G. Ichimura JP  
Project leaders
Mr J. Breitlow DE MT 60268-4
Mr T. Hara JP MT 60268-7
Mr P. Mapp UK MT 60268-16
Dr W. Klippel DE PT 60268-2
Mr J. Yoshio JP MT 62312, MT 62760
Mr H. Furukawa JP MT 62574
Dr Y. Shen KR PT 63034
     
Liaison representative
Dr R. Cabot AES Cat D
Web site tba
 
MT 60268-4 Ed 6
Title

Sound system equipment - Part 4: Microphones

Scope

To revise IEC 60268-4 Ed. 5.0: Sound system equipment - Part 4: Microphones based on 100/2651/DC.

Members
Project leader Mr J. Breitlow DE  
Expert Mr D. Josephson US  
Mr P. Mapp UK  
Mr T. Morisaki JP  
Mr A. Shraybman RU  
Mr F. Takeshi JP  
Mr E. Werner DE  
Dr Y. Shen CN  
     
     
Liaison representative      
Current Stage APUB  100/3109/RVC (IS will be: 2018-08)
Web site tba
 
MT 60268-7 Ed 3.1
Title

Sound system equipment - Part 7: Headphones and earphones

Scope

Amendment 1 to the revision of IEC 60268-5 Ed. 3.0: Sound system equipment - Part 7: Headphones and earphones

Members
Project leader Mr T. Hara JP  
Expert
     
     
     
     
     
     
     
     
     
     
     
     
     
Current Stage

RR 100/3036/DRR (CD will be: 2019-01-31)

Web site tba
 
MT 60268-16 Ed 5
Title

Sound system equipment - Part 16: Objective rating of speech intelligibility by speech transmission index

Scope

To revise IEC 60268-16 Ed. 4.0: Sound system equipment - Part 16: Objective rating of speech intelligibility by speech transmission index

Members
Project leader Mr P. Mapp UK  
Expert Mr L. Holtzem
CH  
Mr H. Sato JP  
Mr A. Schmitz DE  
Mr T. Steinbrecher DE  
     
     
     
Liaison representative      
Current Stage CD  100/3012/RCD (Comments by: 2018-02-16)
Web site tba
 
PT 60268-21 Ed. 1.0
Title

Sound system equipment – Loudspeakers - Acoustical (Output based) measurements

Scope

This International Standard applies to passive and active sound systems such as loudspeakers, headphones, TV-sets, multi-media devices, personal portable audio devices, automotive sound systems and professional equipment. The device under test (DUT) may be comprised of electrical components performing analogue and digital signal processing prior to the passive actuators performing a transduction of the electrical input into an acoustical output signal. The standard describes only physical measurements which assess the transfer behaviour of the DUT between an arbitrary analogue or digital input signal and the acoustical output at any point in the near and far field of the system. This includes operating the DUT in both the small and large signal domains. The influence of the acoustical boundary conditions of the target application (e.g. car interior) can also be considered in the physical evaluation of the sound system. The standard does not assess the perception and cognitive evaluation of the reproduced sound and the impact of perceived sound quality.

Members
Project leader Dr W. Klippel DE  
Experts Mr N. Suzuki
JP  
Mr A. Furuto JP  
Mr K. Kitaiwa JP  
Dr Y. Shen CN  
Mr S-L. Lee KR  
Mr J. Woodgate UK  
     
     
Liaison representative      
Current Stage APUB 100/3019/RVC (IS will be by: 2018-03-31)
Web site tba
 
PT 60268-22 Ed 1
Title

Sound system equipment – Part 22: Electrical and mechanical measurements

Scope

To prepare the final draft International Standard for Sound system equipment – Part 22: Electrical and mechanical measurements

Members
Project leader Mr W. Kippel DE  
Technical Secretary Mr G. Ichimura JP  
Expert Mr A. Furuto
JP  
Mr K. Kitaiwa JP  
Mr N. Suzuki JP  
Mr J. Woodgate GB  
Mr Y. Shen CN  
Mr S. Lee KR  
     
Liaison representative      
Current Stage AMW  100/2985/RVN (Target date for CD: 2018-06)
Web site tba
 
MT 62312 Ed 2
Title

Guideline for synchronization of audio and video
Part 1-1: Measurement methods for synchronization of audio and video equipment and systems - General
Part 1-2: Measurement methods for synchronization of audio and video equipment - Display device
Part 1-3: Measurement methods for synchronization of audio and video equipment - Video recording device
Part 2: Methods for synchronization of audio and video systems

Scope

To revise IEC TS 62312-1-1 and IEC TS 62312-2 based on 100/2754/DC and 100/2755/DC respecrively

Members
Project leader Mr J. Yoshio JP  
Expert Mr P. Maness US  
Mr G. Ichimura JP  
     
     
     
Liaison representative      
Current Stage

Part1-1 Ed.2.0: APUB 100/3105/RVDTS (TS will be: 2018-06-29)
Part1-2: Canceled (SMB 155/34)
Part1-3: PWI   100/990/RVN    Stage 0
Part2 Ed.2.0: APUB 100/3106/RVDTS (TS will be: 2018-06-29)

Web site tba
 
MT 62574 Ed2
Title

Audio, video and multimedia systems - General channel assignment of multichannel audio

Scope

To revise IEC 62574 baaed on 100/2563/DC and 100/2620/RR

Members
Project leader Mr H. Furukawa JP  
Expert Mr J. Yoshio JP  
Mr. P. Maness US  
Mr M. Dolan
US  
Mr. T. Komori JP  
Mr. B. Van Daele BE  
Mr. K. Hamasaki BE  
     
Liaison representative      
Current Stage 2CD  100/3137/CD  (Closing date: 2018-09-21)
Web site tba
 
MT 62760 Ed1 Amd.1
Title

Audio reproduction method for normalized loudness level

Scope

This international standard specifies the method for audio reproduction of normalized audio loudness level for consumer equipment and systems.

Members
Project leader Mr. J. Yoshio    
Expert      
     

   
     
     
     
     
Liaison representative      
Current Stage CD  100/3139/CD  (Closing date: 2018-11-09)
Web site tba
 
PT 63034 Ed. 1.0
Title

Microspeakers

Scope

This International Standard applies to micro-speakers used in portable electronic devices. Usually, the size of the vibration area is not greater than 40 mm. This also applies to loudspeaker systems (known as "box"), which consist of one or more loudspeaker drive units provided with an enclosure. This standard provides the characteristics of micro-speakers that need to be specified as well as the relevant methods of measurement for micro-speakers that use sinusoidal signals, or noise, or impulsive signals. The main characteristics include, but are not limited to, impedance, amplitude frequency response, distortion, and power handling.

Members
Project leader Dr Y. Shen KR  
Experts Mr D. Guiguan
CN  
Mr W. Klippel DE  
Mr K. Kitaiwa JP  
Mr N. Suzuki JP  
Mr M. Dolan US  
Mr G. Hill UK  
     
     
Liaison representative      
Current Stage CDV 100/3107/CDV (Closing date: 2018-09-28)
Web site tba
 
 
 
 
 
 
 
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