Light Bass Boost Online

or drop files here

Apply a 4 dB low-shelf bass preset, then fine-tune the frequency and intensity. The light preset starts at 4 dB around 80 Hz. Compare at similar listening levels; additional bass needs output headroom and cannot restore missing low frequencies.

Warm up a lean recording

A 4 dB starting boost provides audible low-end warmth while keeping the intervention modest. Acoustic music and thin stereo captures can benefit when the missing impression lies near the shelf region.

Locate the useful cutoff

Move the frequency between 40 and 160 Hz. Lower choices focus deeper weight; higher choices extend the lift toward lower instrument fundamentals and can make voices sound heavier.

Listen for muddiness

A low shelf raises a broad region rather than one isolated note. If bass guitar and kick become difficult to distinguish, back off the gain instead of compensating with louder playback.

Save an alternate version

Keep this treatment as a separate listening copy. Its uncompressed WAV can be used in an editor, or converted to MP3 afterward if a smaller sharing file is needed.

Technical references: Web Audio API specification

Light Bass Boost FAQs

Light Bass Boost decodes and processes the selected audio in your browser. File contents are not sent to an audio-processing server; page analytics are described in the site privacy policy.
Light Bass Boost saves 16-bit PCM WAV. MP3, WAV and other browser-supported inputs are decoded first; WAV output cannot restore detail lost in a compressed source.
Open Light Bass Boost, choose your recording, adjust its settings and compare the preview before rendering a WAV download. Effect settings can be auditioned during playback.
Light Bass Boost updates the effect during playback when you adjust a control. Use A/B to compare with the source. Render download creates a separate file using the current settings; moving a slider invalidates the previous download.