In it, the man who is purportedly Maksim expresses an intention to bring down Kyrgyzstan's interim government, which he calls a "cardboard house," and seize power.
The man suggests he's trying to provoke unrest in southern Kyrgyzstan against the interim government, and plans to pay to have several hundred people make mayhem in the capital, Bishkek, equipped with more than mere stones.
The speakers also make reference to "localized operations" to "clean up certain objects."
The recording was reportedly sent to a Bishkek-based think tank. Its authenticity has not been verified.
During Bakiev's presidency, Maksim Bakiev headed a lucrative agency in charge of investment and economic development, and Janysh was an influential figure in the areas of law enforcement and security.
Their whereabouts have been unclear since President Bakiev's ouster following bloody riots last month.
In an interview with RFE/RL's Kyrgyz Service, the exiled former president said he had not been in contact with his sons or brothers since fleeing.
Bakiev declined to confirm or deny the authenticity of the recording.
-- Farangis Najibullah