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psychoacoustics

2 articles · Page 1 of 1

Sep 14, 2026 · Fundamentals

Why Turning Up Volume Doesn't Fix Muffled Speech: The 90/10 Acoustic Paradox & 4-Step EQ Fix

This article explains why some voices sound muffled despite high volume, revealing the 90/10 acoustic energy paradox where vowels carry loudness but consonants carry meaning, how cochlear upward masking buries consonants, and provides a practical 4-step EQ filter chain plus TTS voice selection criteria for crystal-clear speech.

EQ filteringFFmpegFletcher-Munson curves

0 likes · 19 min read

Why Turning Up Volume Doesn't Fix Muffled Speech: The 90/10 Acoustic Paradox & 4-Step EQ Fix

Seewo Tech Circle

Sep 10, 2019 · Fundamentals

Why G711 and MPEG‑1 Audio Codecs Compress Sound Efficiently

This article explores the acoustic foundations of audio compression, detailing how human perception models enable non‑uniform quantization in G711 (PCMA/PCMU) and how MPEG‑1 layer‑III (MP3) leverages frequency‑domain subband analysis, masking effects, and psychoacoustic thresholds to achieve high compression ratios without sacrificing perceived audio quality.

Audio CompressionG711MPEG-1

0 likes · 7 min read

Why G711 and MPEG‑1 Audio Codecs Compress Sound Efficiently