Re: Can you hear your iPhones drive spin?

[firewood]

The original poster who heard a really quiet drive spin noise on his iPhone was not crazy. The iPhone doesn't have a hard drive, but it does contain DC-to-DC voltage converters, which can generate AC noise in the audio frequency range when power is being drawn, and flash memory chips, which can causes the whole system to use more power when this memory is being accessed. Converter noise can vary with the quality of internal components and device assembly (how firmly any inductors are soldered down, etc.) On some devices (older PalmPilots) you can actually hear this noise even without earphones. On other better devices, you might only be able to hear a tiny noise when using poorly shielded but still very sensitive earphones. It's definitely possible.

So, not a hard drive spinning, but electrical current "spinning" (temporarily converted from DC to AC to DC), to run the flash "drive".

Softly.

.