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ETSI - TS 102 925

Speech and multimedia Transmission Quality (STQ); Transmission requirements for Super-Wideband / Fullband handsfree and conferencing terminals from a QoS perspective as perceived by the user

active, Most Current
Organization: ETSI
Publication Date: 1 October 2018
Status: active
Page Count: 57
scope:

The present document provides speech & audio transmission performance requirements and measurement methods for handsfree functions of super-wideband/fullband terminals, including conferencing terminals. The present document provides requirements in order to optimize the end to end quality perceived by users.

Users become more sensitive to voice and music quality (for music used in conversational services) when using ICT/terminal equipment and so are more demanding for further enhancement especially further extension of the audio coded bandwidth.

For instance, this is the case for high quality conferencing services with music on hold, better background environment rendering and longer duration than normal point to point calls.

Standardized super-wideband and fullband codecs are now available, some being also compatible with wideband codecs.

The present document will consider only conversational services (that may be mixed with other services) and does not cover the streaming-only services.

Such applications include:

• Speech and audio communication including conferencing using high quality handsfree systems.

• Bandwidth extension which may allow usage for some mixed content applications.

• Super-wideband enhancement coupled with stereo/dichotic/multichannel.

In the send path the signal may combine speech, music and environmental signals. The signal may be:

• acoustically captured by a microphone; or

• directly inserted through a digital or analog connection.

In the receive path, the signal may combine:

• communication signals such as described for send path, including environmental signals; and

• signals coming from distributed applications (e.g. advertisement, music on hold, etc.).

Document History

TS 102 925
October 1, 2018
Speech and multimedia Transmission Quality (STQ); Transmission requirements for Super-Wideband / Fullband handsfree and conferencing terminals from a QoS perspective as perceived by the user
The present document provides speech & audio transmission performance requirements and measurement methods for handsfree functions of super-wideband/fullband terminals, including conferencing...
March 1, 2013
Speech and multimedia Transmission Quality (STQ); Transmission requirements for Superwideband/Fullband handsfree and conferencing terminals from a QoS perspective as perceived by the user
The present document provides speech & audio transmission performance requirements and measurement methods for handsfree functions of superwideband/fullband terminals, including conferencing...

References

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