Extract Speech from Low-Frequency Audio

I need help extracting spoken words from low-frequency audio in a WAV file. The primary goal is transcription.

Requirements:
- Experience with audio processing
- Ability to isolate speech from background noise
- Proficiency in handling WAV files

Ideal Skills:
- Audio editing software expertise (e.g., Audacity, Adobe Audition)
- Good hearing and attention to detail
- Previous work on similar transcription projects

Please provide samples of previous work and estimated completion time.

Less than a minute long