Wearable sound device and method for ventilation and acoustic tuning

Abstract

To provide a wearable sound device.SOLUTION: A wearable sound device includes a sound outlet, a side opening, an air pulse generating (APG) device, and an exchanger. The exchanger includes a first opening, a second opening, a third opening, and a fourth opening. The first opening and the second opening are on a first side of the exchanger facing a first chamber, and the third opening and the fourth opening are on a second side of the exchanger facing the sound outlet. The APG device produces a first airflow flowing through a first air pathway between the surroundings and the third opening. A second airflow flows through a second air pathway between the fourth opening and the side opening. The first air pathway and the second air pathway are isolated from each other.SELECTED DRAWING: Figure 1

Claims

1. Sound outlet and side openings; An air pulse generator (APG) device configured to generate audible sound by generating multiple air pulses; and Switcher; has The APG device generates a first airflow that flows between the surroundings and the sound outlet via a first air path through the exchanger; A second airflow flows between the sound outlet and the side opening via a second air path passing through the exchanger; The first air path and the second air path are separated from each other. Wearable sound device.

2. The second airflow is separated from the first airflow or from the first chamber between the APG device and the exchanger. The wearable sound device according to claim 1.

3. The device further includes an air filter to prevent contaminants from entering the wearable sound device. The wearable sound device according to claim 1.

4. The control signal for driving the APG device or the driver for the APG device includes an alternating current (AC) signal or a direct current (DC) offset voltage superimposed on the audible audio signal. The wearable sound device according to claim 1.

5. The exchanger has a first opening, a second opening, a third opening, and a fourth opening; The first and second openings are located on the first side of the exchanger facing the first chamber between the APG device and the exchanger within the wearable sound device, and the third and fourth openings are located on the second side of the exchanger facing the sound outlet of the wearable sound device; The first side is located on the opposite side from the second side; The first airflow generated by the APG device flows through the first air path passing through the first and third openings; The second airflow flows through the second air path passing through the second opening, the fourth opening, and the side opening. The wearable sound device according to claim 1.

6. The aforementioned exchange is: A first channel connecting the first opening and the third opening; and A second channel connecting the second opening and the fourth opening; The wearable sound device according to claim 5.

7. The first air path and the second air path are twisted or interleaved with each other. The wearable sound device according to claim 1.

8. The device has a partition configured to separate the second air path from the first chamber between the APG device and the exchanger. The wearable sound device according to claim 1.

9. The APG device generates airflow pulses having an alternating current (AC) envelope, the frequency of which is below the lowest audible frequency. The wearable sound device according to claim 1.

10. The APG device generates airflow pulses having a DC envelope corresponding to a DC offset voltage. The wearable sound device according to claim 1.

11. The aforementioned exchange is: A first channel configured to guide the first airflow; and It has a second channel configured to guide the second airflow; The wearable sound device according to claim 1.

12. The first channel and the second channel within the exchange are designed for acoustic tuning. The wearable sound device according to claim 11.

13. The first and second channels within the exchanger are designed to relieve obstruction in order to achieve a specific sound pressure level (SPL) for a specific spectrum. The wearable sound device according to claim 11.

14. The first and second channels within the exchanger are designed to create resonance in order to increase the sound pressure level (SPL) for a particular spectrum. The wearable sound device according to claim 11.

15. The first channel or the second channel has a circular cross-section, a square-shaped cross-section, or a triangular-shaped cross-section. The wearable sound device according to claim 11.

16. The first airflow and the second airflow flow in opposite directions. The wearable sound device according to claim 1.

17. A ventilation method for wearable sound devices: A step of directing a first airflow that flows between the surroundings and the sound outlet of the wearable sound device via a first air path passing through an exchanger; and The steps include: directing a second airflow that flows between the sound outlet and the side opening of the wearable sound device via a second air path through the exchanger; The wearable sound device comprises the sound outlet, the side opening, an air pulse generator (APG) device, and the exchanger; The first airflow is generated by the APG device; The first air path and the second air path are separated from each other. Ventilation methods.

18. A step of directing the first airflow that flows between the surrounding area and the third opening via the first air path through the exchanger; and The steps include: directing the second airflow that flows through the second air path passing through the exchanger between the fourth opening and the side opening; The exchanger has a first opening, a second opening, a third opening, and a fourth opening; The first and second openings are located on the first side of the exchanger facing the first chamber, and the third and fourth openings are located on the second side of the exchanger facing the sound outlet. The ventilation method according to claim 17.

19. A method for acoustic tuning for wearable sound devices, which is: A step of directing a first airflow that flows through a first air path passing through a circulating device; and The steps include: directing a second airflow that flows through a second air path passing through the exchanger; The wearable sound device has the exchanger; The first air path and the second air path are separated from each other; The exchanger has a first channel for guiding the first airflow and a second channel for guiding the second airflow; The first and second channels within the exchanger are designed to create resonance in order to increase the sound pressure level (SPL) for a particular spectrum. Acoustic tuning methods.

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