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| Clock drift | clock drift : Interaction of systems running on different clocks | |
|---|---|---|
| Clock recovery | PLL vs synchronization (ramping) | |
| Resampling | signal processing and resampling | |
| Avnu | low-latency, time-synchronized, highly reliable synchronized networked devices Avnu = AVB + TNS AVB = AV + PTP | |
| PTP | Precision Time Protocol | |
| Automotive AVB | Focus on subset of standards (features) | |
| 802.1 TNS | Time Sensitive Networking | |
| AVB on linux | Existing open source integrations |
FAQ:
- Q : Is is possible to use AVB over a standard network adapter (without HW support)
- A : No, not for high fidelity Audio automotive or pro equipment.
- Although it is possible to apply the same algorithms with as reference a timer for SW timestamp, but that might induce one or more orders of magnitude of precision loss, that results in a different concepts of buffer dimensioning and so on.
- Q A :
Brainstorming
Use cases
1) external Amplifier, controlled by Android only (cross ECU interface used by headunit only)
2) interact of an Android Audio ECU with the rest of the audio system other ECUs (e.g. remote control - e.g. non Android system)
3) interact with the Audio System from a server
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