TMRpcm audio recording buffer issues with Uno R3

Projects Programming
1

Hi all,
I have an Uno R3 that records audio when a button is pressed. SD card is an 8GB and formatted at FAT32.

Sample rate: 16000 (doesn't make a difference if it's 8bit)

in pcmConfig.h I have:

#define buffSize 128
#define ENABLE_RECORDING
#define BLOCK_COUNT 100000UL

I've also tried these...

#define SD_FULLSPEED
#define buffSize 254

but I'm still getting skipping in my audio...

There is a note about class 4 cards and skipping in pcmConfig.h, but I'm not sure how to implement SdFat?

2

Here you may get some clues:TMRpcm SdFat Problem · Issue #77 · TMRh20/TMRpcm · GitHub
Personally, I think this problem will not exist if you use an Arduino Mega instead of UNO.

3

I was thinking about that, I'm not opposed to replacing the board entirely. Thank you very much.

4

I got the Mega and the problem is...worse.

5

After diving into that thread, I saw where it was mentioned that the default Arduino version of SD.h is just an old version of SdFat.h with bugs. I upgraded my sketch to work with SdFat and it works wonderfully. Thanks for your help!

6

Good to know that it's working now.

7

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