re do we need the clipper for cheap security there are chips which perform the voice compression expansion they can t be expensive because they exist in many phones connected to pbxs or on the pbx line cards as well as in a lot of equipment which compresses voice grade circuits to save the cost of long distance leased t s or satellite circuits i can t remember the generic term for these chips my impression is that this was a big deal years ago but circuits have gotten so cheap that it isn t done much now codecs they have to get about compression on bit samples to squeeze them down v bis i played around with the lossless shorten program last night but it only managed i ve got some specimen celp code but it s not obvious that it runs in real time i think it s just proof of concept code and i have some mucking about with file formats to do before i can put my own sample through it looks like the current option is to use a voice mail modem with built in dsp chip to do this in hardware that means two modems for a system putting the cost at upwards ouch maybe soon we ll be able to do it in software on high powered games consoles isn t the do an acorn risc machine inside that cpu runs like shit off a shovel and will be nicely mass market too g
