---
# System prepended metadata

title: 20210309 DSP Group Meeting
tags: [meeting]

---

###### tags: `meeting`
# 20210309 DSP Group Meeting

## Luxshare
Paper Review: [Blind Source Separation and Acoustic Echo Cancellation](https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6288225)
> [name=若盈, 宣妤]

### Notes
- Variable step-size NLMS (VSS-NLMS)
    - 不需偵測是否為double talk，可節省運算速度

- AEC in BSS framework
![](https://i.imgur.com/PgtqNEa.png)
    - $W^{(l+1)}(\omega) = W^{(l)}(\omega)\hat{R}_X(\omega, k) ???$
    - Covariance Matrix: better if it is diagonal (like decorrelate)
    
- Conclusion
    - Without DTD
    - Speed up the convergence

### Feedback
- 實作就放膽去做！有問題就每個禮拜提出來討論看看
- 把 Eq.10 推導一下