06-27-2020, 04:53 PM
(This post was last modified: 06-28-2020, 07:31 AM by MrHifiTunes.)
(06-27-2020, 11:31 AM)TheOldPresbyope Wrote: So there are two assertions here:Hi Kent,
Quote:while I want to underclock my PI4 and reduce noise when I play music. But I also dont want to loose boot up time because of the lower speedlimit of the CPU.
You'll have to wait for your Boss to arrive to test whether underclocking has any effect on "noise" but you can test today whether underclocking increases boot time. Just grab a stop watch and time how long the RPi4 takes to boot with and without underclocking.
Regards,
Kent
i did some testing
Reduce arm_freq to 800 didnt have much effect on boot time
adding arm_freq_min=400 and gpu_freq = 250 increased the boot time with 20%
I assume the GPU changes made the boot time longer
I noticed that RPi4 doestnt have HW acceleration to decode FLAC. Is this normal?
