Convert paf to gsrt

Download and install the latest version of Filestar.
Right click on one or more Paf file(s) on your desktop and select Convert with Filestar.
Type convert to gsrt in the search box.
Press Convert.

What is the difference between .paf and .gsrt?

Name: PARIS Audio File; Grandstream ring-tone File
Extension: .paf; .gsrt
Format: Binary; Binary
Category: Audio; Audio
Developer: Ircam.; Grandstream
Description: Ensoniq PARIS file format (big-endian).; Grandstream ring-tone files. Whilst this file format can contain A-Law, μ-law, GSM, G.722, G.723, G.726, G.728, or iLBC encoded audio, SoX supports reading and writing only A-Law and μ-law.
MIME Type: audio/x-paf; audio/x-gsrt
Sample: sample.paf