{"id":117768,"date":"2026-08-10T18:08:18","date_gmt":"2026-08-10T16:08:18","guid":{"rendered":"https:\/\/hofa-akustik.de\/?p=117768"},"modified":"2026-08-11T09:41:40","modified_gmt":"2026-08-11T07:41:40","slug":"why-thin-absorbers-arent-enough-in-the-studio","status":"publish","type":"post","link":"https:\/\/hofa-akustik.de\/en\/blog-en\/why-thin-absorbers-arent-enough-in-the-studio\/","title":{"rendered":"Why thin absorbers aren’t enough in the studio"},"content":{"rendered":"\n

Or: The carpet is a poor absorber!<\/strong><\/p>\n\n\n\n

Anyone wanting to improve their room acoustics in the studio intuitively has the right thought at first: “I need soft material in the room that swallows the sound.<\/em>“<\/p>\n\n\n\n

In the next step, however, it comes down to choosing the right material for the room and its usage. Materials that are too thin, such as convoluted (egg-crate) foam, large-area carpets, or thin curtains, are problematic. After introducing such materials into a room, acoustic disappointment often follows: the reverberation in the high frequencies is now overly dampened, but the rest of the frequency spectrum hasn’t improved at all. Booming in the bass range and obtrusive-sounding mids now dominate the room’s sound profile.<\/p>\n\n\n\n

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Poor acoustic solutions: carpet, thin curtains, acoustic foam<\/p>\n<\/div>\n\n\n\n

The problem caused by absorbers that are too thin can be found in the frequency-dependent absorption coefficient of sound absorbers. In this post, you will learn what that means, why broadband absorption is the decisive factor for professional sound in the studio, and how you can noticeably increase the precision of your audio productions in your rooms with targeted sound absorption.<\/p>\n\n\n\n

The theory: what is the absorption coefficient \u03b1?<\/strong><\/strong><\/h3>\n\n\n\n

The absorption coefficient \u03b1 (Alpha) is the unit of measurement for the effectiveness of an acoustic element. It is a factor and has no unit of measurement, so it applies independently of the absorber’s surface area and describes the ratio of incident to absorbed sound energy on a scale of 0 to 1:<\/p>\n\n\n\n