Invalid period size specification for ALSA?

[abique]

cpal/src/host/alsa/mod.rs

Line 1066 in 6ecfec4

hw_params.set_period_size_near((v / 4) as alsa::pcm::Frames, alsa::ValueOr::Nearest)?;

Hi,
The code above seems wrong to me.
As I understand it, a cpal buffer size correspond to an alsa period size.
So the alsa buffer size should be: nperiods * cpal_buffer_size.

While it is currently cpal_buffer_size / 4 and I suppose that nperiods == 4.

I think that better defaults for cpal would be a nperiods == 2.

Cheers,
Alex