About audio testing
What is "audio"? The word audio has been used to describe generally sound-related devices and their functions in the audio range. Refers to the sound waves that can be heard by the human ear with a sound frequency between 20HZ and 20KHz, called audio, which may include noise and so on.
Audio testing can help determine the audio performance of a device or system. For example, when testing the audio performance of a mobile phone, an audio analyzer can be used to measure the frequency response, distortion, and signal-to-noise ratio of the device. This data can help developers ensure their products meet the required audio standards, thereby providing a better audio experience.
Audio Acoustics Verification Laboratory can provide sound quality, volume and voice recognition testing solutions to ensure that the sound quality meets user expectations.
Audio Test Specification
3GPP_26.131/132:
Test range: 3G/4G(VoLTE)/5G(VoNR)
Test mode: handset/hands-free/headset
Support encoder: AMR-NB/AMR-WB/EVS-SWB
GSMA_ Annex C - Minimum Requirements for Mobile Networks and Terminals for the usage of the ‘HD Voice’ logo with GSMUMTS
Annex F Minimum Requirements for Mobile Networks and Terminals for the usage of the ‘HD voice’ logo with LTE
Annex H Minimum Requirements for the usage of the HD Voice+ logo with LTE
Test range: 3G/4G(VoLTE)
Test mode: hand-held/hands-free/headphone
Support encoder: AMR-NB/AMR-WB/EVS-SWB
VOIP_TIA 920
Test range: WB only
Test mode: hand-held/hands-free/headphone
Support codec: G.722/AMR-WB/L16
VoWiFi
Test scope: WiFicalling
Test mode: hand-held/hands-free/headphone
Support encoder: AMR-NB/AMR-WB/EVS-SWB
Should you have any doubts about whether your mobile wireless device is in need of Acoustic testing to meet a particular market’s regulatory requirements, SGS will be very happy to assist you to make the proper determination and offer the necessary testing and certification services.
📧 Emma.wu@sgs.com / Phill.Wang@sgs.com ☎ (02) 2299-3279 # 1530 / 1522