• To anyone looking to acquire commercial radio programming software:

    Please do not make requests for copies of radio programming software which is sold (or was sold) by the manufacturer for any monetary value. All requests will be deleted and a forum infraction issued. Making a request such as this is attempting to engage in software piracy and this forum cannot be involved or associated with this activity. The same goes for any private transaction via Private Message. Even if you attempt to engage in this activity in PM's we will still enforce the forum rules. Your PM's are not private and the administration has the right to read them if there's a hint to criminal activity.

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Digital Voice Quality Difference?

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Mar 1, 2005
Is there a voice quality difference between iDEN, Tetra, P25; ect. Do they all sound pretty much alike? Thanks!
The voice quality depends on the vocoder used, some of which include noise reduction techniques, and can therefore sound different. The voice quality is measured by means of the Mean Opinion Score (MOS).


Database Admin
Feb 19, 2003
N.E. Kansas
TRBO sounds just like DSTAR to me. IT has a more granular finer type of sound.

To me P25 has a more fluid watery sound to it.

AEGIS sounds a bit like a mix between P25 and DSTAR. It's kind of bubbly when in a weak signal area.

Securenet CVSD old school digital sound very grainy like static on the audio.
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