[BUG] No sound when downloading videos using Youtube Downloader (starting from v2025.3.17.0)#228

**Describe the bug** There is NO SOUND in recorded videos. I have tracked this down to starting from the latest update (v2025.3.17.0).... ALL my downloaded videos from 25th of March (which is when I updated **_Youtube Downloader_**, are without sound.... **Release information:** I was up to date, to **v2025.3.17.0 (x64)**, but I have also tried downloading the previous version **(2025.2.25.0 x64)**, which DID work fine before I updated, but the issue now remains. Even on older versions I have NO SOUND. I currently have no way to download videos with sound. When I open my MKV files in VLC Player 9or any other player), there is NO audio channel available:   My Settings as they currently are:  **Please complete the following information or replace the following text with data copied from SCrawler (click the top right info button in the main window, then the `Environment` button, then the `Copy` button, and paste the copied text here).** - OS: **Windows 11, up to date** - Architecture: **x64** - Version: **2025.3.17.0** - NET.Framework version: - ffmpeg version (command `ffmpeg -version`): **5.1.2** - yt-dlp version (command `yt-dlp --version`): **2025.02.19** - gallery-dl version (command `gallery-dl --version`): **1.28.5** - cURL version (command `curl --version`): **8.11.1** **Environment from the YT Downloader application:** YouTube Downloader v2025.3.17.0 (x64) OS: Microsoft Windows 11 Pro (x64) ffmpeg version: ffmpeg version 5.1.2-full_build-www.gyan.dev Copyright (c) 2000-2022 the FFmpeg developers yt-dlp version: 2025.02.19