Links
Hardware:
AKG Acoustics in the World Wide Web
http://www.AKG-ACOUSTICS.COM
PANASONIC broadcast
http://www.panasonic-broadcast.com/indexa.html
SONY
https://www.sony.com
TASCAM
https://tascam.com/en
DENON
https://www.denon.com
ALESIS
https://www.alesis.com
YAMAHA
https://www.yamaha.com
MACKIE
https://mackie.com/
STUDER
https://studer.evertz.com/
THORENS
https://www.thorens.com
FURMAN Products for Audio, Video and Computers
https://www.furmanpower.com/
t.c.electronic - Ultimate Sound Machines
https://www.tcelectronic.com/
AdB - Perfect Sound
http://www.adbdigital.com
RME Professional Soundcards
https://www.rme-audio.com/
Digital Video
http://www.fastmultimedia.de/index.html
Pioneer DVD-Video
http://www.pioneerusa.com/dvd_video.html
Software:
Steinberg (WaveLab, Cubase, Nuendo ...)
https://www.steinberg.net/
DartPro Sound Restauration
http://www.dartpro.com/New.asp
Digital Signal Processing Related Links: DSP Links
http://www.inf.u-szeged.hu/~tothl/DSP.html
Audio Engineering Society
https://aes2.org/
IEEE The Institute of Electrical and Electronics Engineers
https://www.ieee.org/
Massachusetts Institut of Technology
https://www.mit.edu/
IRCAM - Center Georges Pompidou
https://www.ircam.fr/
KTH Music Acoustic Group
https://www.speech.kth.se/music/
Eric Weisssteins World of Mathematics
https://mathworld.wolfram.com/