I played with EA Graphics Editor and I noticed that VIV-files are actually TAR (the Unix designation for Tape Archive) files. In XBRUCE2.VIV file there is a lot of audio in it, for example all announcer voice files.
I did extract these files and noticed that if I change the audio speed in Audacity (Free, open source, cross-platform audio software), I can to get out somewhat recognizable audio. Maybe there is a way to edit audio in NHL95PC? I do not have time (or skills) to examine this further now, but I just wanted to bring this out if someone is interested about this in future.
EA Graphics Editor can exctract audio from VIV-files and SNDVIEW can extract/import audio from/to VIV-files. I include here EA Graphics Editor and SNDVIEW if someone wants to investigate this.
sndutil.zip
eazip110b.zip
EA Graphics Editor: ://forums.nba-live.com/downloads.php?view=detail&df_id=3