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Speaker Asylum General speaker questions for audio and home theater. |
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Speaker Asylum General speaker questions for audio and home theater. |
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In Reply to: You just described... posted by Ozzie on May 30, 2025 at 06:22:33:
I often read/hear that sentiment. I do understand that there is a time issue with ported bass drivers. That's the nature of stored-dumped acoustic energy. But I have yet to see any time measurement or blind subjective listening test which actually confirms that it's audible.
The wavelengths and time lengths at those frequencies are quite long. For example, 40 Hz is about 28 milliseconds long for one wavelength. Our hearing integrates sound over a longer time period at those frequencies. In fact, it takes more than one wave to even identify the sound as a "tone".
I could be wrong (I haven't studied psychoacoustics - or needed it - in a long time), but I think that what a person may be hearing as "smear" is at higher frequencies which the woofer is reproducing/producing, not at the lower frequencies where the port is in play, where we don't hear that kind of detail.
Please show me your more up-to-date information. (No anecdotal "evidence" allowed! This is science!) :)
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Follow Ups
- RE: You just described... - Inmate51 11:27:55 05/30/25 (1)
- Listening tests are prople buying ported.. - Ozzie 19:09:00 06/02/25 (0)
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