Specifically I’m wondering about electronics that play back short noises or songs, like baby toys. Why would the sounds slow down or get distorted when the batteries get low?
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So, in sound you have frequency. If you’ve ever ‘sped up’ a song you know it sounds like chipmunks and the opposite happens when you slow it down, it sounds like it’s in slow motion.
Electronics also operate at a frequency, which is usually set to the ‘speed’ it needs to operate ‘correctly’. Electricity pulsing at the proper frequency makes the electronic work normally.
Basically when a (non-lithium) battery is going dead, the electronic it powers receives less power to be able to operate at the proper frequency, and so it works slower
Slowed down electronic = slowed down frequency being reproduced = slowed down sound, like that slow motion effect
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