Audio Tools
Audio Equalizer
Apply 10-band EQ with presets to shape the frequency balance of your audio.
Drop audio file or click to upload
MP3, WAV, OGG, FLAC, AAC, M4A, WebM
Your audio files are processed entirely in your browser. Nothing is uploaded to any server.
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About Audio Equalizer
OptiPix Audio Equalizer lets you shape the frequency balance of any audio file with a 10-band graphic equalizer. Adjust each frequency band from -12dB to +12dB: 32Hz, 64Hz, 125Hz, 250Hz, 500Hz, 1kHz, 2kHz, 4kHz, 8kHz, and 16kHz. Choose from presets like Bass Boost, Treble Boost, Rock, Pop, Jazz, Classical, Podcast, and more. Preview the EQ'd audio in real-time, then download with the EQ permanently applied. Uses Web Audio API BiquadFilterNodes for real-time processing.
How It Works
Real-time preview uses Web Audio API BiquadFilterNodes chained together, each targeting a frequency band. For download, the EQ settings are translated to FFmpeg equalizer filter parameters and baked into the output file.
Use Cases
- •Boost bass in music
- •Improve voice clarity in recordings
- •Apply genre-specific EQ curves
- •Fix muddy or tinny audio
- •Optimize audio for specific speakers or headphones
Frequently Asked Questions
What frequencies can I adjust?
What presets are available?
Can I preview before downloading?
Is my audio uploaded?
Is the EQ baked into the download?
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