Vokoda simayenera kukhala kusintha kwa nyimbo. Sizinayenera kukhalachirichonsemu nyimbo, kwenikweni. Kukula kwake kudayamba zaka zana zapitazo, pomwe mainjiniya ku Bell Labs amafunafuna njira yosavuta yotumizira mafoni pama foni amkuwa. Katswiriyu, Homer Dudley, adapanga ukadaulo wapamwamba kwambiri womwe umatha kujambula ndi kupanga mawu amunthu.
Monga momwe zatekinoloje zapamwamba zimachitira, vocoder nthawi yomweyo idayamba kukhala yakeyake. Inathandiza kwambiri pa Nkhondo Yachiwiri Yadziko Lonse, kuthandizira mauthenga achinsinsi kudutsa nyanja zonse. Ndiyeno, patapita zaka zingapo, izo zinayamba kukhala chodabwitsa nyimbo. Poyamba akatswiri angapo anali …