BE346916A - - Google Patents
Info
- Publication number
- BE346916A BE346916A BE346916DA BE346916A BE 346916 A BE346916 A BE 346916A BE 346916D A BE346916D A BE 346916DA BE 346916 A BE346916 A BE 346916A
- Authority
- BE
- Belgium
- Prior art keywords
- sound
- amplifier
- center
- flanges
- mentioned under
- Prior art date
Links
- 230000003321 amplification Effects 0.000 description 5
- 238000003199 nucleic acid amplification method Methods 0.000 description 5
- 239000011111 cardboard Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
- G10K11/025—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators horns for impedance matching
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE346916A true BE346916A (https=) |
Family
ID=22658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE346916D BE346916A (https=) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE346916A (https=) |
-
0
- BE BE346916D patent/BE346916A/fr unknown
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