STFT Filter, Vocoder & Background Anti-Throttling Suite

Real-Time Frequency Domain Audio Engine with Mobile / Background Throttling Prevention

📱 Mobile & Background Audio Protection Protected

Enable Silent Keep-Alive (Prevents Mobile Sleep/Pause)

Keep Screen Awake (Screen Wake Lock API)

1. Audio Input Mode

2. Filtering Behavior

STFT Window Size (N)

Carrier Spectral Profile

Microphone Gain

100%

Master Volume

50%

Target Frequency Bands (1 Hz – 22,000 Hz)

Parametric Comb Generator, LFO Modulator & Sub-Series Rotator

Start Frequency (Hz)

End Frequency (Hz)

Band Width (Hz)

Step / Interval (Hz)

🎲 Enable Random Play Mode (Sub-Series Rotator) Status: Disabled

Active Bands per Series (k)

Series Duration (Sec)

Band Rotation Style

Noise Profile Rotation

1,140 Unique Series Combinations (k=3 of N=20)

⚡ Enable LFO Modulation (Sweeping / Rotating Comb) Status: Static

Modulation Target

LFO Waveform / Behavior

LFO Cycle Period / Interval (Sec)

Modulation Depth / Amount (Hz)

Coarse Presets (1 Hz – 22 kHz Broad Bands)

Fine Presets (1 Hz – 22 kHz Precision Bands)

Real-Time Output Spectrum Visualizers

1. Logarithmic Spectrum (Perceptual Musical Scale) Low Frequencies Expanded

1 Hz 100 Hz 1 kHz 5 kHz 22 kHz

2. Linear Spectrum (Even Frequency Distribution) Equal Pixel Spacing Across 1 Hz – 22,000 Hz

1 Hz 5.5 kHz 11.0 kHz 16.5 kHz 22.0 kHz

Silenced / Filtered Out Regions (0 dB)

Live Audio Output Spectrum

Engine Diagnostics

Live Mic STFT

Processing Mode

FILTER OUT (Notch)

Filtering Behavior

Total Bands Count

~21.5 Hz

Bin Resolution (N=2048)

~23.2 ms

STFT Frame Latency

Disabled

Screen Wake Lock