why doesn't siri beep on iOS 9

i got my husband to instal iOS 9.1 today and the first thing i had rouble with was Siri, she no longer beeped when i pressed the home button, Why not. Being vision impaired, i am unable to see the flashing lines across the bottom of the screen and the vibration that is supposedly there could just be me moving my fingers on the phone, has the same feeling. i found a post that says turn off vibrations in accessibility and this will make siri beep, this is fine as long as i don't need to turn the phones ringtone off and rely on vibration to notify me of a call or message. all these improvements to iOS each time are very good, but Apple really needs to take into account the needs of blind & vision impaired people, when ever they apply an update this should be one of the first things they get feedback on before it is released to the general pubic