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the sd card that i am using have a read speed of 19mb/s and a write speed of a 14mb/s i noticed something that when my teensy is cool i will get for 2min a stable worst write time of 1900us but afterword its the same problem (getting 5000us and sometime 33000us)

I am using a teensy 4.0 where the sd card is installed on a shield, I am using a kingstone 32 gb sd card.

but not in all cases some cases my worst write is stable at 1900us but in many other cases I see spikes at 33603us

so i have worst writes of 33603us is there anyway to fix this issue

(#Handset lifted Mode switched to: Prompting Starting Recording Disabled MTP storage device checks Opened file ! Recording to 00002.wav Mode switched to: Recording Worst write took 0us Worst write took 2158us Worst write took 2195us Worst write took 5078us Worst write took 2128us Worst write...

(#Handset lifted Mode switched to: Prompting Starting Recording Disabled MTP storage device checks Opened file ! Recording to 00000.wav Mode switched to: Recording Worst write took 0us Worst write took 1906us Worst write took 1905us Worst write took 1906us Worst write took 1905us Worst write...

(#Serial set up correctly Audio block set to 128 samples Mode switched to: Initialising Button (pin 0) Release Button (pin 1) Release SD card correctly initialized Add **SDClass** file system Added SD card via MTP Mode switched to: Ready &&&&& Dump MTPStorage Loop Data &&&&& Callback Data: 0...

Thank you for answering but I am still getting pops even after removing the "no" from the define

sorry but I am not sure about which playback button are you talcking about and I may ask you if possible about a simple guide about to instument the sd card writes by a compile-time option. I really appriciate if you can help me, because I am working on this audio guestbook and Its making those...