ホームシアターの軸方向ルームモード（共振周波数）を計算します。部屋の寸法を入力して問題のある定在波を特定し、音響処理を最適化してください。
Calculating Room Mode is a fundamental and crucial step in home theater design. It is not just about measuring distance; it must be designed based on scientific evidence to maximize human visual perception limits and immersion. Incorrect settings can cause eye strain or fail to take advantage of resolution benefits. This tool complies with industry standards such as THX and SMPTE guides to provide the most precise data.
This system utilizes complex trigonometry and optical formulas. Based on the input variables (screen size, resolution, viewing angle, etc.), it simultaneously calculates the minimum distance where pixels do not appear clustered and the maximum immersion distance that fills the entire field of view. All results are reflected in real-time, suggesting figures optimized for the user's environment.
部屋の幅、奥行き、高さをフィートまたはメートルで入力してください。計算機は公式 f = n × c / (2 × L) を用いて軸方向の共鳴モードを計算します (c = 343 m/s、n は倍音 1〜4)。軸方向モードは最も強く、最も聞こえやすい室内共振です。
300 Hz以下のモードはホームシアターで問題になりやすいです。赤で表示されたモードは間隔が近い周波数 (5%以内) であり、深刻な低音の蓄積や打ち消しを引き起こす可能性があります。
ルームモードの問題を最小化するには、単純な整数比 (例: 1:2:4) の部屋寸法を避けてください。推奨される比率はBolt領域 (奥行き:幅:高さ ≈ 1.9:1.4:1) またはIEC 268-13比率です。コーナーへのベーストラップ設置は最も強い軸方向モードに有効です。
Room modes are resonant frequencies where sound waves reinforce each other, creating standing waves. In a home theater, they cause certain bass frequencies to boom excessively while others nearly disappear, resulting in uneven bass response depending on where you sit.
The most effective solution is bass traps placed in room corners, where axial modes converge. Thick (4"+) acoustic panels filled with rigid fiberglass or rockwool absorb low frequencies. Asymmetric room geometry and multiple subwoofers also help smooth bass response.
Avoid dimensions with simple integer ratios like 1:2:4 (e.g., 8x16x32 ft) where modes stack exactly. The Bolt area (length:width:height ≈ 1.9:1.4:1) and IEC 268-13 proportions spread modes more evenly across the frequency range.