StudioWavePro — Online Audio Editor with 48+ Studio Tools

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StudioWavePro’s Bass Boost adds warmth and weight to a track using a low-shelf filter — the same building block hardware bass controls use. Two controls do all the work: Boost (0 to +15 dB) sets how much louder the low end gets, and Crossover (60–400 Hz) sets the frequency below which the boost applies. Press play and drag either slider while listening; the filter updates live, so finding the sweet spot takes seconds.

The default 150 Hz crossover is the classic bass-shelf setting that fattens kick drums and bass guitar without muddying vocals. Drop the crossover toward 60–80 Hz to target only the deep sub-bass (great for electronic music on good headphones), or push it toward 300–400 Hz for a warmer, fuller overall tone on thin-sounding recordings.

When to use

Add punch to a song that sounds thin on your speakers or in the car.
Restore low end lost in a phone or laptop recording.
Give podcasts and voiceovers a fuller, "radio voice" warmth (gentle boost, low crossover).
Beef up the sub-bass in an electronic or hip-hop track.
Compensate for small earbuds or laptop speakers that ship bass-shy mixes.

How to use

Click "Open Bass Boost" below to launch the editor.
Drop in any audio file — MP3, WAV, OGG, M4A and FLAC are all supported.
Press "Play preview", then drag the Boost slider (0 to +15 dB) until the low end sits where you want it.
Adjust the Crossover slider (60–400 Hz) to control which frequencies count as "bass" — lower values target only the deepest notes.
Click "Apply Bass Boost", then download the result as WAV or MP3.

Tips

Start at +4 to +6 dB. Big boosts (+10 dB and up) get loud fast and can overload the low end — if it starts sounding boomy or distorted, back off.
A heavy boost raises the overall level too. If the result clips, apply Normalize afterwards to pull everything back to a safe peak.
For boosting bass and cutting boxy mids at the same time, use the 10-band Equalizer instead — its "Bass" preset is a good starting point.
Boosting bass on a track that already has strong low end mostly adds mud. Check on headphones — laptop speakers can’t reproduce what you’re boosting.
For the opposite job (removing rumble or boominess), use the High Pass filter to cut everything below a chosen frequency.

Frequently asked questions

How do I add bass to a song online?: Open Bass Boost, drop in the song, press Play preview, and drag the Boost slider up until the low end sounds right (start around +5 dB). Click Apply Bass Boost and download as MP3 or WAV. The whole process takes under a minute.
What does the Crossover setting do?: It sets the frequency below which the boost applies. At 150 Hz (the default), kick drums and bass instruments get lifted. At 60–80 Hz, only deep sub-bass is affected. At 300–400 Hz, the boost adds general warmth and body to the low half of the spectrum.
Why does my bass sound distorted after boosting?: Bass frequencies carry a lot of energy, so a strong boost can push the waveform past the maximum level and clip. Reduce the boost a few dB, or apply Normalize after boosting to bring the track back to a safe peak level.
Bass boost vs equalizer — which should I use?: Bass Boost is a one-knob low-shelf: fast and hard to get wrong. The 3-band and 10-band Equalizers give finer control — for example boosting 62 Hz while cutting 250 Hz "mud". If you just want more low end, start here; if you’re shaping the whole tonal balance, use the EQ.
Does bass boosting work on voice recordings?: Yes — a gentle boost (+3 to +5 dB) with the crossover around 100–150 Hz adds warmth and presence to spoken voice. Avoid large boosts, which make speech sound muffled and pick up handling rumble.
Will the boosted file lose quality?: The filter is rendered at full floating-point precision, identical to what desktop audio software does. Export as WAV for a lossless result, or MP3 (192 kbps) for a smaller file.

StudioWavePro is a complete audio editor with 48+ studio-grade tools in one workspace. Trim, master, EQ, time-stretch, denoise, remove vocals, detect BPM and musical key, generate metronomes, and more. Editing tools

Audio Trimmer — crop a track to a selected region

Mute Section — silence a selected region

Reverse Audio — play the track backwards

Fade In/Out — ramp volume at start or end

Silence Trimmer — strip leading and trailing silence

Silence Gap Inserter — insert silence at a chosen position

Audio Looper — repeat a section N times

Audio Splitter — cut a track into multiple parts

Audio Merger — join multiple files end-to-end

Silence Splitter — auto-split at silent gaps

Crossfade Joiner — join clips with overlapping fades

Time and pitch

Speed Changer — speed up or slow down (with optional pitch preservation)

Pitch Shift — change pitch without changing tempo

Tempo Detector — estimate the BPM of a music track

Key Detector — estimate the musical key

Metronome Generator — create a click track at any BPM

Effects

Volume — make a track louder or quieter

Bass Boost — lift the low end

Treble Boost — lift the high end

Low Pass Filter — cut off high frequencies

High Pass Filter — cut off low frequencies (remove rumble)

Equalizer (3-band) — low / mid / high tonal shaping

Equalizer (10-band) — fine-grained tonal control

Echo — add repeating echoes / delay

Distortion — overdrive, fuzz, and lo-fi grit

Stereo Balance — shift the L/R center of a stereo mix

Stereo Widener — make stereo narrower or wider

Vocal Remover — karaoke (center-channel removal)

Hum Remover — strip 50/60 Hz mains hum

Mastering and analysis

Normalize — maximize volume without clipping

Compressor — even out loud and quiet parts

Loudness Meter — measure peak, RMS, and LUFS

Mono Converter — collapse stereo to mono

Channel Extractor — pull L, R, Mid, or Side

Sample Rate Converter — resample to 44.1, 48, or 96 kHz

Polarity Inverter — flip waveform for phase alignment

DC Offset Remover — center waveform around zero

Audio Visualizer — render an animated video from audio

StudioWavePro supports MP3, WAV, OGG, M4A, and FLAC files. Exports include WAV and MP3. This app requires JavaScript to run. Please enable JavaScript in your browser.