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Lets try this again:Vox Squelch softwa
I am looking for software the detects and ONLY
triggers on human voice. On AM/SSB comms, a level squelch is nearly useless. One implementation, in hardware, can be seen at: http://www.qsl.net/kc7bum/hf_squelch.html This is a very usefull device, but I am looking for a way to do it in software. ------------------------------- From a thread on the R20000 listeserve: " Message 703 of 714 From: W6AFK w6afk@a... Date: Fri Jan 28, 2005 10:53 am Subject: Voice detection software? Lou, Voice squelches for HF are typically "syllabic squelches". They do not react on noise but on the pattern of the signal. Simple hardware based ones try to detect the presence of voice (low frequency syllabic variations associated with voice). Although not perfect, these types of squelch circuits are fairly common on commercial and military HF equipment. Noise based squelches are practically unusable on HF as they are triggered by any random noise... and as we all know, HF-AM/SSB sure isn't FM ;-) However, I agree that it would be an interesting project if someone created a software-based syllabic squelch application that can be used with any radio... any takers? ;-) Bruno, ------------------------ So I hope I am making my request clear, I am looking for software that unlike the normal VOX is a VOX that only responds to human voice. My hardwr unit does a great (99%) job of ingoring non-voice singals. FSK, and some music, symphonies, fool it. Terry |
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