5.1 Sound Test [ Edge LIMITED ]

| Signal Type | Purpose | Expected Result | | :--- | :--- | :--- | | | Verify mapping | Voice says "Left" from left speaker only. | | Pink Noise | Level calibration | Equal perceived loudness per channel (SPL meter). | | Phase Tone (mono) | Check polarity | Sound focused in center; if out of phase, sound is diffuse/outside speakers. | | Sweep Tone (20Hz–20kHz) | Frequency response | No buzz, rattle, or volume dips (room modes excepted). | | LFE Sweep (20–80Hz) | Subwoofer function | Tactile bass, no localization (sub should not "point"). | | Panning Loop | Spatial continuity | Sound moves seamlessly L→C→R→Rs→Ls→L. |

import numpy as np import soundfile as sf channels = ["Left", "Center", "Right", "Left Surround", "Right Surround", "LFE"] fs = 48000 duration = 2.0 # seconds 5.1 sound test

Principles and Methodologies for 5.1 Surround Sound System Evaluation | Signal Type | Purpose | Expected Result