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Roseville, CA Noise from Specific Sources: Low-Frequency Bass Limits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Daytime A-weighted cap
50 dBA Leq, one-minute period
Nighttime A-weighted cap
45 dBA Leq, one-minute period
C-weighted fallback
75 dBC day / 70 dBC night
Background rule
No more than 3 dB(A) / 5 dB(C) over ambient
Octave-band test
10 dB rise in any one-third octave band = violation

Summary

Roseville's noise code singles out low-frequency bass for its own measurement standard inside the amplified-sound rules. Municipal Code Section 9.24.110(B) caps audible bass tones from amplified music or sound at an hourly-equivalent 50 dBA during the day and 45 dBA at night, measured for any one-minute period at the affected sensitive receptor's property line, with a tougher C-weighted test if the bass still cannot be isolated.

If separation of low frequency tones from the background ambient sound can be determined with the sound level meter on fast response (a clearly identifiable increase in ambient sound levels corresponding to the audible bass sounds), sound levels shall not exceed an Leq of 50 dBA daytime and 45 dBA nighttime for any one minute period.

View official code

Full Breakdown

110 sets Roseville's general amplified sound limits at an Leq of 50 dBA daytime and 45 dBA nighttime, with a 75 dBC daytime and 70 dBC nighttime ceiling and a rule against a 10 dB jump in any one-third octave band. Because bass tones often slip past a standard A-weighted reading, subsections (A) through (E) build a dedicated low-frequency test. " If the bass still cannot be isolated on A-weighting, subsection (C) switches the meter to C-weighting, which emphasizes low frequencies, and if the tones separate there, the limit becomes 75 dBC daytime and 70 dBC nighttime for any one-minute period.

Subsection (D) adjusts for a loud background: if ambient levels already exceed the Table 2 standards, amplified bass cannot exceed that background by more than three dB on A-weighting or five dB on C-weighting. As a last resort, subsection (E) allows a one-third octave band analysis, and a 10 dB increase in any single band caused by the amplified sound is itself a violation of the chapter.

Violations & Fines

A bass source that fails any tier of the Section 9.24.110 test, whether measured as a one-minute Leq, a C-weighted reading, or a 10 dB jump in a one-third octave band, is a chapter violation. Under Section 9.24.200 the offense is an infraction, each day is a separate offense, and repeat citations on the same property let the city recover its enforcement costs from the responsible party.

Frequently Asked Questions

Does Roseville have a specific rule for booming bass or subwoofer noise?
Yes. Section 9.24.110's amplified sound rules include a dedicated low-frequency test because bass often does not register on a standard sound reading. Once low-frequency tones are separated from ambient sound, the limit is 50 dBA daytime and 45 dBA nighttime for any one-minute period, measured at the affected property's line.
What if the bass can't be measured with a normal A-weighted meter?
Section 9.24.110(C) has the enforcement officer switch the meter to C-weighting, which emphasizes low frequencies. If the tones separate on that scale, the cap becomes 75 dBC in the daytime and 70 dBC at night, still measured for any one-minute period.
Is there a backup test if the bass still can't be isolated?
Yes, Section 9.24.110(E). If neither A-weighting nor C-weighting can separate the tone but it is clearly audible, the officer uses one-third octave band analysis, and a 10 dB increase in any single band from the amplified sound counts as a violation.

Sources & Official References

Other rules in Roseville

Parking Rules: Overnight ParkingSome RestrictionsParking Rules: Street Parking LimitsSome RestrictionsFence Regulations: Height LimitsSome RestrictionsParking Rules: RV & Boat ParkingSome RestrictionsHVAC & Mechanical NoiseFew RestrictionsCar Alarm LimitsLight RestrictionsBar & Nightclub NoiseSignificant RestrictionsFence Regulations: Fence Permit RequirementsSome RestrictionsFence Regulations: Material RestrictionsSignificant Restrictions

All Roseville rules

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