Content for TS 26.260 Word version: 18.1.0
0 Introduction p. 5
Audio is a key component of an immersive multimedia experience and 3GPP systems are expected to deliver immersive audio with a high Quality of Experience. However, industry agreed methods to assess the Quality of Experience for immersive audio are relatively few and the present document seeks to address this gap by providing objective test methods for the assessment of immersive audio.
1 Scope p. 6
The present document specifies objective test methodologies for 3GPP immersive audio systems including channel based, object based, scene-based, parametric and hybrids of these formats. The objective evaluation methods described in the present document are applicable to audio capture, coding, transmission and rendering as indicated in their corresponding clauses. They also include testing of IVAS-based UEs [26].
2 References p. 6
The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
- References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
- For a specific reference, subsequent revisions do not apply.
- For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1]
TR 21.905: "Vocabulary for 3GPP Specifications".
[2]
J. Fliege und U. Maier: "A two-stage approach for computing cubature formulae for the sphere," Dortmund University, 1999.
[3]
ISO 3745 - Annex A: "Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure -- Precision methods for anechoic rooms and hemi-anechoic rooms - Annex A: General procedures for qualification of anechoic and hemi-anechoic rooms".
[4]
ISO/R 1996-1972: "Acoustics - Assessment of noise with respect to community response".
[5]
ANSI S1.4: "Specifications for Sound Level Meters".
[6]
ISO 3: "Preferred numbers - Series of preferred numbers".
[7]
B. Rafaely, "Analysis and design of spherical microphone arrays," IEEE Transactions on Speech and Audio Processing, no. 13, 2005, pp. 135 - 143
[8]
M. Poletti, "Unified Description of Ambisonics Using Real and Complex Spherical Harmonics," Ambisonics Symposium 2009, June 25-27, 2009, Graz, Austria.
[9]
Recommendation ITU-T G.100.1 (06/2015): "The use of the decibel and of relative levels in speechband telecommunications".
[10]
Recommendation ITU-T P.56 (12/2011): "Objective measurement of active speech level".
[11]
Recommendation ITU-T P.57 (06/2021): "Artificial ears".
[12]
Recommendation ITU-T P.58 (03/2023): "Head and torso simulator for telephonometry".
[13]
Recommendation ITU-T P.79 (11/2007): "Calculation of loudness ratings for telephone sets".
[14]
Recommendation ITU-T P.501 (05/2020): "Test signals for use in telephonometry".
[15]
Recommendation ITU-T P.581 (07/2022): "Use of head and torso simulator for hands-free and handset terminal testing".
[16]
Recommendation ITU-T P.340 (05/2000): "Transmission characteristics and speech quality parameters of hands-free terminals".
[17]
Recommendation ITU-T P.341 (03/2011): "Transmission characteristics for wideband digital loudspeaking and hands-free telephony terminals".
[18]
Recommendation ITU-T P.380 (07/2022): "Electro-acoustic measurements on headsets".
[19]
Recommendation ITU-T P.381 (03/2023): "Technical requirements and test methods for analogue wired headsets or headphones and corresponding universal interface of terminals".
[20]
Recommendation ITU-T P.382 (03/2023): "Technical requirements and test methods for analogue wired multi-microphone headsets or headphones and corresponding universal interface of terminals".
[21]
Recommendation ITU-T P.383 (03/2023): "Technical requirements and test methods for digital headsets or headphones and corresponding interfaces of terminals".
[22]
Recommendation ITU-T P.700 (06/2021): "Calculation of loudness for speech communication".
[23]
Recommendation ITU-R BS.1770-5 (11/2023): "Algorithms to measure audio programme loudness and true-peak audio level".
[24]
IEC 60268-1:1985: "Sound system equipment. Part 1: General".
[25]
IEC 61260-1:2014: "Electroacoustics - Octave-band and fractional-octave-band filters - Part 1: Specifications".
[26]
TS 26.131: "Speech and video telephony terminal acoustic test specification".
[27]
TS 26.132: "Speech and video telephony terminal acoustic test specification".
[28]
TS 26.250: "Codec for Immersive Voice and Audio Services - General overview".
[29]
TS 26.253: " Codec for Immersive Voice and Audio Services; Detailed Algorithmic Description incl. RTP payload format and SDP parameter definitions".
[30]
TS 26.254: "Codec for Immersive Voice and Audio Services - Rendering".
[31]
TS 26.258: "Codec for Immersive Voice and Audio Services; C code (floating-point)".
[32]
ETSI TS 103 224: "A sound field reproduction method for terminal testing including a background noise database".
[33]
USB Implementors' Forum: "HID Usage Tables for USB", Version 1.5.
[34]
H. Wittek and G. Theile: "The recording angle - based on localisation curves", proceedings of the 112th AES convention, Munich, 2002.
