I dont know if we can count Yoruba talking drum as a piece of audio...
Certainly not, It is a musical instrument...
But the best book on acoustics i ever read was written by a Nigerian acoustician Akpen J. Essien who play also the Yoruba talking drum and was inspired by it to wrote his doctorate revolutionary thesis on acoustics...
After revolutionizing acoustics is there an audio company in Nigeria, i doubt it ? But who knows if it takes someone from Nigeria to understand acoustics ....