Spanish Record Conversation Clean-Up and transcribe audio to text

I need an audio expert with the ability to handle and clean records. I have a conversation in Spanish that requires some editing and noise cleaning, I need to hear the voices alone and clearly and the conversations written in a txt file. The work will be remunerated if all audio is clean of noise and voices can be heard clearly. To successfully complete the job, the following points are crucial:
* Display high degree of audio editing skills
* Experience with cleaning records, especially conversations, is essential
* Familiarity with Spanish language is an asset
* Evidence of past work in audio editing and cleaning
Please demonstrate your experience in these areas during application. This project demands a high level of expertise, necessitating that you be detail-oriented and familiar with audio editing techniques to deliver a cleaned up version of the conversation.