Please post your messages related to electro-acoustical measurements
Subject measuring STI Date
Fri Dec 13 2002 10:36
Author Petra Larm
(Petra.Larm@ttl.fi)
Hi,
I'm going to use winmls to measure speech transmission index and I've some questions which arose when learning the evaluation version:
1 According to the Help file there should be Room Acoustics measure settings option but I didn't find it. I've checked this Measurement setups Toolbar and the options are:
but no RoomAcoustics settings. Should I use Master Setup?
2 Speech/noise correction: Are the speech and noise values that I put there assumed to be those that would arise in non-reverberant conditions? If so, why can I measure the noise level with sound level meter? (In reverberant conditions) Can I use speech level values that I get by subtracting the influence of the distance from the speaker to the microphone from the standard speech spectrum values?
3 What is this Gaussian emphasis that has been mentioned in the STI notes (found in the web site)? Is it taken account in winmls?
