Sounds During Timeouts

[Nevadaref]

1-18 is the only rule on this.

RULE 1, SECTION 18 MUSIC/SOUND EFFECTS/ARTIFICIAL NOISEMAKERS
The playing of music/sound effects shall only be permitted during pregame,
time-outs, intermission and post-game. The use of artificial noisemakers shall be prohibited.

MUSIC/NOISE/SOUND RESTRICTIONS
1.18 SITUATION: In (a) the band from the home team is playing during a live
ball; (b) the electronic scoreboard is playing broken-glass sound effects just after
an opponent's missed field-goal attempt; or (c) fans from the visiting team are
using artificial noisemakers during an opponent's attempted free throw. RULING:
All situations are prohibited by rule. The officials should notify game management
in (a) to instruct the band to only play during the permitted times; in (b) to
instruct the scoreboard operator to cease the prohibited acts; and in (c) to have
a public-address announcement made stating that the use of any artificial noisemakers
is prohibited at all times. In all situations, if the problem continues it may
result in a technical foul being assessed to the team supporter(s).