# Writing

> Javad Rajabzadeh's Tech Blog & Posts
> Index URL: http://javad.dev/posts/

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## All Posts


### [Optimally-Modified Log-Spectral Amplitude (OM-LSA): Post-Filtering for Speech Intelligibility](http://javad.dev/posts/omlsa-speech-enhancement-postfiltering/)
- Date: 2026-07-19
- Description: An in-depth mathematical and algorithmic guide to single-channel speech enhancement using Optimally-Modified Log-Spectral Amplitude (OM-LSA) post-filtering to boost speech intelligibility and eliminate musical noise.
- Tags: #signalprocessing #math #audio #python #matlab #dsp 
- Markdown URL: http://javad.dev/posts/omlsa-speech-enhancement-postfiltering/


### [Real-Time Multichannel Speech Enhancement: Inverse-Free Rank-N Matrix Updating on Edge Hardware](http://javad.dev/posts/rankn-multichannel-wiener-filter/)
- Date: 2026-07-19
- Description: Solving matrix inversion bottlenecks in Multi-channel Wiener Filtering (MWF) using neural covariance attention and complex Conjugate Gradient solver for low-power drone and robotics hardware.
- Tags: #signalprocessing #deeplearning #math #robotics #edgeai #python #matlab 
- Markdown URL: http://javad.dev/posts/rankn-multichannel-wiener-filter/