1. An apparatus comprising:
a first audio driver acoustically connected with a first sound bore inside a housing, the first sound bore having a first diameter;
a second audio driver acoustically connected with a second sound bore inside the housing, the second sound bore having a second diameter, the second diameter being smaller than the first diameter.
2. The apparatus of claim 1, wherein the first sound bore has at least the first diameter from an exit nozzle to the first audio driver.
3. The apparatus of claim 2, wherein the first sound bore has a varying diameter from the exit nozzle to the first audio driver.
4. The apparatus of claim 1, wherein the first audio driver is different than the second audio driver.
5. The apparatus of claim 1, wherein the first audio driver is physically larger than the second audio driver.
6. The apparatus of claim 1, wherein the first and second audio drivers are each electrically connected to an audio source via a cable connector recessed into the housing.
7. The apparatus of claim 1, wherein the housing is configured to fit in a user’s ear.
8. An apparatus comprising first and second audio drivers respectively acoustically connected to first and second sound bores in a housing, the first sound bore having a larger diameter than the second sound bore, the second sound bore continuously extending from the first sound bore at a position between the first audio driver and an exist nozzle portion of the first sound bore.
9. The apparatus of claim 8, wherein third and fourth sound bores each continuously extend from different locations on the first sound bore to at least one exterior surface of the housing.
10. The apparatus of claim 9, wherein the third sound bore is closed by a first valve and the fourth sound bore is closed by a second valve.
11. The apparatus of claim 10, wherein the first and second valves are each needle valves.
12. The apparatus of claim 10, wherein the first and second valves are different types of valves.
13. The apparatus of claim 10, wherein the first valve closes the third sound bore at a location between the at least one exterior surface and the first sound bore.
14. The apparatus of claim 10, wherein the first and second valves are independent of each other.
15. The apparatus of claim 9, wherein the third and fourth sound bores each continuously extend from an ear canal tip of the housing.
16. The apparatus of claim 9, wherein the fourth sound bore is positioned at a helix of a user’s ear when the housing is inserted into the user’s ear.
17. An apparatus comprising first and second audio drivers respectively acoustically connected to first and second sound bores in a housing, the first sound bore having a larger diameter than the second sound bore, the first sound bore continuously extending from the first audio driver to an exit nozzle, the second sound bore continuously extending from the second audio driver to the first sound bore, the first sound bore having a greater diameter than the second sound bore.
18. The apparatus of claim 17, wherein the first and second sound bores are continuously smooth.
19. The apparatus of claim 17, wherein the first diameter is 3-6 mm.
20. The apparatus of claim 17, wherein the first audio driver has a third diameter, the first diameter is smaller than the third diameter.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method comprising:
analyzing a partition-level timing report for a first partition of a circuit to identify one or more timing paths;
selecting a first timing path from the partition-level timing report to generate details for the first timing path, in which a timing constraint applied to the first timing path is associated with a second timing path in a second partition;
locating a net name to which the timing constraint is applied in a constraint file to obtain a corresponding path identifier located in a constraint debug model;
locating the path identifier in the constraint debug model to obtain a partition identifier for the second partition and the second timing path associated with the timing constraint;
locating the second timing path in a debug model for the second partition; and
merging details of the second timing path in the second partition with the partition-level timing report for the first partition to generate a merged timing report that includes details from the first and second partitions.
2. The method of claim 1 wherein the timing constraint corresponds to a valid time for an input to the first timing path.
3. The method of claim 1 wherein the timing constraint corresponds to a required time for an output from the first timing path.
4. The method of claim 1 wherein the first timing path has multiple timing constraints and wherein the merged timing report includes timing paths for each timing constraint.
5. The method of claim 1 wherein the timing constraint is caused by more than one timing path.
6. The method of claim 1 wherein the merged timing report includes timing information for the first partition and timing details from the first and second partitions to provide timing information on a global timing path across multiple partitions.