ftp.ntua.gr:/mirror/slackware/slackware-15.0/source/l/speexdsp/?C=N&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[TXT] speexdsp.SlackBuild                              13-Feb-2021 07:32  3.4K  
[   ] speexdsp-1.2.0.tar.lz                            07-Jun-2019 11:21  710K  
[TXT] slack-desc                                       29-Nov-2018 21:17  719
Apache/2.2 Server at ftp.grnet.gr Port 80