Dear Sir / Madam,
I have extended experience in multimedia manipulation projects.
If interested, I can send you qualifications and references.
I would need 1 day with you to specify exactly how would you like to have it done, 4 days to develop and test it myself and 2 days for you to evaluate and confirm the completion.
If interested, one could expand the player in many ways, for example adding effects on playing stream like echo, reverb, fade-in and fade-out, etc.
Best regards