UIButton *b = (UIButton *)sender;
myTableViewCell* cell =  (myTableViewCell*)[[b superview] superview];

[cell.button setImage:myImage];

-(void)audioPlayerDidFinishPlaying:
(AVAudioPlayer *)player successfully:(BOOL)flag
{
    NSLog(@"audioPlayerDone");
}

UIButton *b = (UIButton *)sender;
myTableViewCell* cell =  (myTableViewCell*)[[b superview] superview];

NSIndexPath *indexPath = [tableView indexPathForCell:cell];
AudioObject *audio = [dataArray objectAtIndex:indexPath.row];
audio.isPlaying = true;

[tableView reloadData];