People tend to have music when entertaining. Many people also like to listen to music while they're driving in their vehicles. However, these activities can go from fun to illegal very quickly. Florida has specific laws regarding noise violations and sound ordinances.
Music in the Home
According to Florida Ordinance Section 9-139, it is illegal to produce music that can be clearly heard at 50 feet or more by others (not in your home or apartment) between 10 p.m. and 7 a.m. Further, music cannot be produced at any time that can be heard at 300 feet or more with windows and doors closed. A problem with this is the method used to "measure music." Decibel readers can often be wrong (with ambient or background noise pulling up on the meters as well); therefore, the law enforcement officer must rely on his normal hearing functions--which can make the violation very subjective. According to Florida law, if a police officer comes to your home or apartment based on a noise violation, you have 5 minutes to "comply with the warning" and turn your music down. If you do not comply, you can be fined up to $500 or imprisoned in the county jail for up to 60 days.
Music in Cars
Under the 2009 Fla. Statute on motor vehicles--Chapter 316, Section 3045--you can be fined for playing loud music in your car. According to Florida law, it is illegal to operate a motor vehicle if your music (e.g., from the radio, iPod, MP3, CD or tape) can be heard within 25 feet or more of your vehicle. You can also be fined if your music is too loud around surrounding churches or schools. This fine is considered a noncriminal infraction. The fine is $30, plus a $16 court cost assessment.
Under the Florida Statute on motor vehicles--Chapter 316, Section 271--there are several areas of exemptions for this law. Locomotives, agricultural equipment and emergency signals (from emergency vehicles or sirens) are exempt. Also, the human voice (as long as it's not amplified), law enforcement training and activities, outdoor hunting sports and organized athletic events are also considered to be exempt from this law.
City vs. State
Different cities and counties within the state of Florida may have different ordinances regarding noise laws. It is important to know that state law can be upheld over local laws. However, in previous cases, the local laws on noise violations were stricter than the state laws. The state of Florida has changed its previous noise laws to be more compliant with the stricter laws of the local communities. Any police officer in the state of Florida can impound your car and levy a fine if your loud music can be heard within only 25 feet.