https://www.listeninc.com/wp/media/logo.png 0 0 Devin Vaillancourt https://www.listeninc.com/wp/media/logo.png Devin Vaillancourt2022-09-12 19:48:042022-09-12 19:48:04Send Loudness Rating with ITU Real Speech Test Sequence
Send Loudness Rating with ITU Real Speech Test Sequence
The purpose of this sequence is to measure the Send Loudness Rating (SLR) following the ITU-T P.79 standard. This sequence can be used with handsets, headsets, and conference call devices. First, real speech from the ITU-T P.501 standard is played out of a mouth simulator. The Device Under Test (DUT) microphone then captures the signal and transmits this back to SoundCheck. SoundCheck calculates the frequency response function in 1/3 octaves and calculates SLR based on that frequency response.