(self, command)
return self
Run arbitrary SoX effect commands.

        Examples:
            custom('echo 0.8 0.9 1000 0.3') for an echo effect.

        References:
            - https://linux.die.net/man/1/soxexam
            - http://sox.sourceforge.net/sox.html
            - http://tldp.org/LDP/LG/issue73/chung.html
            - http://dsl.org/cookbook/cookbook_29.html
Run arbitrary SoX effect commands.
Run arbitrary SoX effect commands .
def custom(self, command):
        """Run arbitrary SoX effect commands.

        Examples:
            custom('echo 0.8 0.9 1000 0.3') for an echo effect.

        References:
            - https://linux.die.net/man/1/soxexam
            - http://sox.sourceforge.net/sox.html
            - http://tldp.org/LDP/LG/issue73/chung.html
            - http://dsl.org/cookbook/cookbook_29.html
        """
        self.command.append(command)
        return self
def custom ( self , command ) : self . command . append ( command ) return self