The texts for pronunciation practice were recorded by professional speakers.

• Pavel Batěk, https://cs.wikipedia.org/wiki/Pavel_Batěk
• Lucie Juřičková, https://cs.wikipedia.org/wiki/Lucie_Juřičková
• Jiří Miroslav Valůšek, https://www.hadivadlo.cz/lide/jiri-miroslav-valusek/