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Opinion: should you be able to control a car with your voice?

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Opinion: should you be able to control a car with your voice? | Top Gear

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The future may be voice for online grocery shopping, but not car control

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Opinion: should you be able to control a car with your voice?

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The future may be voice for online grocery shopping, but not car control

# data.attributes.metatag[].attributes.content
The future may be voice for online grocery shopping, but not car control

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Opinion: should you be able to control a car with your voice?

# data.attributes.metatag[].attributes.content
Opinion: should you be able to control a car with your voice?

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Opinion: should you be able to control a car with your voice?

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The future may be voice for online grocery shopping, but not car control

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In 1992, I drove a Saab prototype without a steering wheel. Not an autonomous car, note. I said “I drove”. The idea was that in a crash you wouldn’t biff into the steering wheel and column. Instead you had a joystick down where the gearstick normally was. Also, because it was fully drive-by-wire, your steering input could be overlaid by the car’s opinion: it would be sharper for manoeuvring, and less direct at speed for stability. And it would quietly opposite-lock you if you got it wrong. The engineer said it wouldn’t be ready for production until 2015 or so.

As it happens, all those drive-by-wire ‘benefits’ have been introduced, thanks to 4WS and other nudges to electric power steering, and even the true drive-by-wire Infiniti sold and I hated. BMW’s and Lexus’s active steering did similar, and were similarly vile. But what never left us was the steering wheel. Because it’s just a good way to operate a car.

So are pedals. We could do without – you can drive a games console with a joystick – but serious players use a toy wheel and pedals. Guess why.

I suppose you could steer, accelerate and brake using voice. (Before you mention it, yes, I’ve had passengers who try.) But no carmaker does, because it’s just not as precise and satisfying.

Voice control is pretty hopeless in the tasks it is now given. “Hey BMW, turn up the radio.” “Hey Mercedes, zoom out the map.” The old way is better. Put your fingers on the volume knob and twist until it’s exactly loud enough. Twist or swipe the map zoom control and stop when it covers the area you want. There’s no overshoot. No need for hollering above the newly created din, “Hey BMW, no, not that loud, down a bit.” “Hey Mercedes, I only wanted you to show as far as the next motorway junction, not a view as seen by a Martian gazing at our blue planet through the wrong end of a bloody telescope.”

The language recognition software behind both these systems is supplied by Nuance Inc. Fairly named, because understanding speech in a car is indeed an incredibly subtle and nuanced task. But where’s the subtlety in the result? Turning up the radio is a perfect feedback system. With each tiny movement of the knob we listen and check to see if it’s loud enough and if not keep turning, continually reiterating this loop, until it is. Voice control can’t do this. Even if we tried saying “turn it up a smidge/a bit/a chunk/a load”.

Although you can say “turn the volume to level 25”. Do you know what level 25 is in your car? Nope, you’d have to learn. But actually, German engineers do think like this. Maybe that’s why they like voice control. I was once small-talking with one about his recent holiday by the sea. It had been nice weather. I asked if he’d been swimming. “No, the water was too cold. Only 12 degrees. My wife is OK with 12. But I need 13.”

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In 1992, I drove a Saab prototype without a steering wheel. Not an autonomous car, note. I said “I drove”. The idea was that in a crash you wouldn’t biff into the steering wheel and column. Instead you had a joystick down where the gearstick normally was. Also, because it was fully drive-by-wire, your steering input could be overlaid by the car’s opinion: it would be sharper for manoeuvring, and less direct at speed for stability. And it would quietly opposite-lock you if you got it wrong. The engineer said it wouldn’t be ready for production until 2015 or so.

As it happens, all those drive-by-wire ‘benefits’ have been introduced, thanks to 4WS and other nudges to electric power steering, and even the true drive-by-wire Infiniti sold and I hated. BMW’s and Lexus’s active steering did similar, and were similarly vile. But what never left us was the steering wheel. Because it’s just a good way to operate a car.

So are pedals. We could do without – you can drive a games console with a joystick – but serious players use a toy wheel and pedals. Guess why.

I suppose you could steer, accelerate and brake using voice. (Before you mention it, yes, I’ve had passengers who try.) But no carmaker does, because it’s just not as precise and satisfying.

Voice control is pretty hopeless in the tasks it is now given. “Hey BMW, turn up the radio.” “Hey Mercedes, zoom out the map.” The old way is better. Put your fingers on the volume knob and twist until it’s exactly loud enough. Twist or swipe the map zoom control and stop when it covers the area you want. There’s no overshoot. No need for hollering above the newly created din, “Hey BMW, no, not that loud, down a bit.” “Hey Mercedes, I only wanted you to show as far as the next motorway junction, not a view as seen by a Martian gazing at our blue planet through the wrong end of a bloody telescope.”

The language recognition software behind both these systems is supplied by Nuance Inc. Fairly named, because understanding speech in a car is indeed an incredibly subtle and nuanced task. But where’s the subtlety in the result? Turning up the radio is a perfect feedback system. With each tiny movement of the knob we listen and check to see if it’s loud enough and if not keep turning, continually reiterating this loop, until it is. Voice control can’t do this. Even if we tried saying “turn it up a smidge/a bit/a chunk/a load”.

Although you can say “turn the volume to level 25”. Do you know what level 25 is in your car? Nope, you’d have to learn. But actually, German engineers do think like this. Maybe that’s why they like voice control. I was once small-talking with one about his recent holiday by the sea. It had been nice weather. I asked if he’d been swimming. “No, the water was too cold. Only 12 degrees. My wife is OK with 12. But I need 13.”

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The future may be voice for online grocery shopping, but not car control