The address is here: https://www.aconvert.com/cn/audio/
Can convert audio, image, PDF, video, document formats online for free
The page looks like this
1 Click Choose File to select the file you want to convert.
2 Click the target format to select the format you want
3 Click Start Conversion to start uploading files and converting
I converted an m4a audio file into MP3 format, and the download page after conversion:
If your browser does not know how to create a new download
Method 1: Then use the mobile browser to scan the QR code below. Huawei's own browser page is as follows:
Click the download button to download directly.
Scan the code with the mobile phone UC browser to jump out of the download page directly.
Method 2: Copy the download link and go directly to the new download task in Thunder to download.