AUdio recording can not be considered as evidence unless iit is substantiated by deposition of witness before the court........Bu you can use it to support your case...in such cases the court has to face the admissibility nature and evidentary value of the soun recording.
only Audio recording is not regarded as evidence in the court as dear in year 1964 the Supreme Court gave ruling in the Kairon case that tapes cannot be accepted as primary evidence. however audio tapes which includes video of the same and the authenticity is proved by scientific examination can be regarded as evidence this is in the accordance of the Verma Commission inquiring into Rajiv Gandhi's assassination the videotapes of cameraman Haribabu were regarded as evidence in same case as the authenticity was proved .
In India, the earliest case in which issue of admissibility of tape-recorded conversation came for consideration is Rupchand v. Mahabir Prasad, AIR 1956 Punjab 173. The court in this case though declined to treat tape-recorded conversation as writing within the meaning of section 3 (65) of the General Clauses Act but allowed the same to be used under section 155(3) of the Evidence Act as previous statement to shake the credit of witness. The Court held there is no rule of evidence, which prevents a party, who is endeavoring to shake the credit of a witness by use of former inconsistent statement, from deposing that while he was engaged in.