Modular effect rack
Enable only processors that exist in the implementation and preserve a clear, deterministic processing order.
Add Audio Effects Online
Load a track, enable only the processors you need and adjust them while listening to representative sections. Compare the bypassed and processed signal, then export a new copy.
Effect names, signal-chain order, parameter ranges, presets and algorithms must be read from source. Do not label basic DSP as AI or promise studio restoration.
Read the full guide1Add audioor click to choose a file
2Apply effects4 effects enabled
3Output settingsDownload processed audio
Add audio
Drop an audio file here
or click to choose a file
Supported formats: MP3, WAV, FLAC, M4A, AAC, OGG, Opus
Effect chain
NormalizeRaise overall loudness without clipping.
Bass BoostAdd weight to low frequencies.
Noise ReductionClean rumble and high hiss with gentle filters.
Equalizer (EQ)Shape tone with a 10-band curve.
ReverbAdd room ambience and depth.
EchoRepeat the signal with controlled feedback.
CompressorTame peaks and stabilize dynamics.
Stereo EnhancerWiden stereo material with a subtle delay spread.
Effect preview
00:00.0000:00.00 / 00:00.0000:00.00
Effect preview00:00.00
10-band equalizer
+1232Hz
+1264Hz
+12125Hz
+12250Hz
+12500Hz
+121kHz
+122kHz
+124kHz
+128kHz
+1216kHz
Output settings
Apply effects
Estimated size-
How should audio effects be used?
Effects change tone, dynamics, space or stereo presentation. Start with a specific problem, apply one processor at a time, use conservative settings and level-match the comparison; more effects do not automatically produce better sound.
What this tool lets you do
Detailed controls
Expose meaningful parameters such as EQ gain, compressor threshold, reverb mix or echo feedback only when they are wired to the DSP.
Bypass comparison
Switch the complete chain on and off at a comparable loudness so an increase in volume is not mistaken for improvement.
Safe export
Show input/output meters or warnings when available and render a separate result without overwriting the source.
When to use it
- Reduce muddiness or harshness with restrained equalization.
- Add a small room sound to dry narration, music or effects.
- Control uneven peaks with a compressor whose behavior is documented.
- Create deliberate echo, wide stereo or bass-heavy sound design.
- Build a light speech-cleanup chain when every enabled processor is suitable and supported.
How to use it
Choose a representative source
Load the audio and identify the passages where the problem or desired effect is most obvious.
Start with every effect bypassed
Enable one processor, adjust a small amount and listen before adding another.
Set the chain deliberately
Confirm the implemented order because noise reduction before compression behaves differently from the reverse.
Watch level and artefacts
Check quiet and loud sections for clipping, pumping, ringing, metallic noise, excessive width or a washed-out sound.
Render and verify
Export the new file, then listen outside the editor and compare it with the untouched source.
Settings explained
Equalizer
Each band changes a frequency region. Broad, small moves are safer than many extreme boosts; boosts also consume headroom.
Compressor
Threshold, ratio, attack and release control how peaks and dynamics are reduced. Incorrect timing can cause pumping or dull transients.
Reverb and echo
Mix controls how much processed signal is added; decay, delay and feedback determine how long it persists. High feedback can run away.
Noise reduction
Useful mainly for steady noise when the algorithm supports it. Strong settings can produce watery or metallic speech.
Stereo enhancer
Changes channel relationship, not source detail. It may weaken mono compatibility and should not be offered for mono input without a defined behavior.
File handling and privacy
Verify whether decoding, DSP rendering, presets, preview and encoding remain in the browser. If a remote model, API or analytics payload contains media, disclose it. URL mode still downloads from the media host.
Limits to understand
- Effects cannot reconstruct information missing from a clipped, heavily compressed or poorly recorded source.
- The exact chain order materially changes the result and must not be left undocumented.
- A preset is only a starting point; it cannot know the recording, room, voice or final playback system.
- Extreme EQ, feedback, compression and width can create clipping, instability or poor mono playback.
Practical tips
- Reduce an unwanted frequency before boosting another one.
- Match playback level when comparing bypassed and processed audio.
- Save the original and, for complex work, keep a lossless intermediate if supported.
- Check the result on headphones, ordinary speakers and mono when those destinations matter.
Troubleshooting
The result is louder but not better
Level-match the comparison and reduce output or makeup gain.
Speech sounds metallic
Lower noise reduction, echo/reverb mix or other spectral processing, then re-check the chain order.
The compressor pumps
Use a less aggressive ratio, lower makeup gain or slower release, subject to the implemented controls.
Stereo disappears in mono
Reduce width and check phase correlation; an enhancer cannot guarantee mono compatibility.
Frequently asked questions
In what order are effects applied?
Use the exact order shown by the interface and source code. Do not invent or silently change a fixed processing chain.
Can I use several effects together?
Yes when the engine supports the combination, but add them one at a time and keep headroom.
Does bass boost improve a thin recording?
It can raise low frequencies, including hum and handling noise; it cannot create missing bass detail.
Can noise reduction remove all background sound?
No. It may reduce steady noise, while speech-like or changing noise is harder and strong processing creates artefacts.
What is wet/dry mix?
It blends the processed signal with the original. Zero is dry; the maximum uses more or all of the effect, depending on implementation.
Will stereo enhancement work on mono audio?
Only if a documented algorithm synthesizes a stereo result. Otherwise the control should be disabled or its limitation stated.
Does the original file change?
No. The effects editor should render a new file.
Are effects processed locally?
Only make that claim after checking every DSP, model, encoder, diagnostic and storage path. URL input still contacts its host.