The given audio file was just a audio morse code which can put inside a online decoder to get the flag.
Flag: tjctf{thisisallonewordlmao}
There is a zip file hidden in the image.
It requires a password. Doing strings reveal a possilbe password.
Flag: tjctf{the_end_is_not_the_end_4c261b91}
I tried binwalk, exiftool and strings on it but nothing shows. Therefore I tried zsteg.
Flag: tjctf{feudalism_still_bad_ea31e43b}