Audio Narrowband Filter

Audio Narrowband Filter is a focused audio learning and practice tool for students, musicians, and educators. It isolates precise frequency bands in real time so you can hear and study details in recordings or live sound. Use it to train your ear, analyze instrument timbre, or demonstrate acoustic principles in class. With adjustable center frequency and bandwidth, clean visual feedback, and educator-friendly presets, it turns complex DSP into a clear, hands-on experience. Core features • Real-time narrowband filtering with adjustable frequency and bandwidth • Visual spectrum feedback to see what you hear • Presets for common instruments and learning scenarios, plus A/B bypass for quick comparison Ideal for music education, ear training, practice, and audio analysis. Keywords: audio filter, narrowband filter, music education, ear training, spectrum analysis, DSP learning.

1. Install and open the app, then allow microphone access or proceed to load an audio file. 2. Choose a source: record live audio, stream device audio, or import a track from your library. 3. Enable the narrowband filter and adjust the center frequency and bandwidth with the sliders to isolate the target sound. 4. Watch the spectrum display and use A/B bypass to compare filtered and original audio while you listen. 5. Save your preset for future practice sessions, or export a short filtered clip for study and sharing.