With Converter App, you can convert WMA files into many other formats:
WMA to MP3 | WMA to M4A | WMA to WAV | WMA to FLAC | WMA to AAC | WMA to OGG | WMA to ALAC | WMA to TEXT
→ All WMA Converters
If you want to keep working with your final SRT, try:
SRT to SSA | SRT to ASS | SRT to VTT | SRT to DOC | SRT to ODT | SRT to DOCX | SRT to WORD