Why is my voice getting quieter with Parkinson's?

If people keep asking you to repeat yourself, and you keep thinking they need their ears tested, the more likely explanation is this: your voice has got quieter, and you are the last person who can hear it. A softer, quieter voice has a name, hypophonia, and it is one of the most common ways Parkinson's shows up in speech. It is also one of the symptoms that responds best to proper help.

Why is my voice quieter?

The same reason everything else in Parkinson's tends to get smaller. As Parkinson's UK puts it, changes in the brain mean that movements become "slower, smaller and less forceful than before", and your voice is a movement: breath, vocal cords, lips and tongue all working together. Rigidity, when muscles become stiff, can add to the problem.

Parkinson's UK describes it directly: "A quieter, softer voice, which may sound breathy, is called hypophonia." Your voice may also sound hoarser or flatter than it used to.

Why does my voice sound normal to me?

Because the gap is in the feedback loop, not in your hearing or your effort. Parkinson's UK notes that "you might not realise that you're talking more quietly." From the inside, your voice sounds the way it always has, so when someone says speak up, it genuinely feels like their problem. That mismatch is the condition at work. It is worth saying plainly: being asked to repeat yourself is not evidence that you are mumbling, or failing. Your sense of loud has been recalibrated without your permission.

What help is there?

The single best move is a speech and language therapist, and the advice is to go early. Parkinson's UK recommends that you speak to one "as soon as you can after you've been diagnosed", not once things get difficult. Therapy is tailored to you, and a referral usually comes through your specialist or Parkinson's nurse, so raise it at your next appointment.

One programme worth knowing by name is the Lee Silverman Voice Treatment. It helps people recognise when their voice is too quiet and trains them to speak more loudly, over 16 sessions in a month. It is intensive, it has a strong reputation, and, as Parkinson's UK notes honestly, it is not available everywhere. Ask what your local service offers.

There are also simpler tools: apps that show you how loud you actually are, and small voice amplifiers for situations where you need the help today rather than after a course of therapy.

What can I do myself, starting now?

Treat your voice like any other muscle Parkinson's is trying to shrink, and work it on purpose. The same principle Parkinson's UK applies to movement, deliberately bigger and more forceful, applies here: their advice for slowness of movement includes speaking more loudly as a deliberate act. Read aloud. Sing, in whatever privacy you need. Aim for a volume that feels slightly rude. Like big handwriting, it will usually land as normal.

Two honest caveats. Pushing volume from the throat rather than the breath can leave you hoarse, which is exactly the kind of thing a speech and language therapist sorts out properly. And a voice change that is sudden, or a persistent hoarseness, deserves a GP conversation in its own right, whatever the cause.

What Day2 does about it

Day2 does not do speech therapy, and will not pretend to. What it does is keep the record: the daily check-in captures how you are doing, so when you sit down with a therapist or consultant you can say "it started around March, and it is worse in the afternoons" with evidence behind it. And Marty will happily talk through any of this at four in the morning, though he will point you to your clinical team for the referral itself.

Speaking of afternoons: if your voice fades as the day goes on, along with everything else, why the afternoon is harder is the companion piece to this one.

If you would rather talk it through with a person, the Parkinson's UK helpline is free: 0808 800 0303.