Newsgroups: comp.speech
Path: pavo.csi.cam.ac.uk!doc.ic.ac.uk!warwick!uknet!bcc.ac.uk!link-1.ts.bcc.ac.uk!uclyams
From: uclyams@ucl.ac.uk (Mr Andrew Simpson)
Subject: Calculating RMS level of speech
Summary: RMS level of Speech - is there a standard?
Message-ID: <1994Feb10.131333.46664@ucl.ac.uk>
Date: Thu, 10 Feb 1994 13:13:33 GMT
Organization: Bloomsbury Computing Consortium
Keywords: RMS level speech calculating
Lines: 33



When one wants to calculate the RMS level of speech before, say,
combining it with noise at a particular Signal to Noise ratio,
is there an agreed procedure on how to decide whether to include
silence in the speech signal in the calculation?

When analysing the speech frame by frame to decide whether a frame
should be included in the calculation of overall level because
it contains speech, or should be excluded because it contains
silence, is there an agreed optimal frame duration?

At the moment I have just made an arbitrary decision and chosen
a frame length of 100ms, but there must be a better way of doing
this.


Thanks in advance for any help.


Andrew Simpson







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