| DAVID | Posted: 22 May 2018, 04:41 AM |
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 I love mcus Member Posts: 237 Joined: 10-September 17 |
hi a was playing with pcm on my arduino mega which has 200000 kilobytes of program memory so i wonder if a can fit a whole uncompresed 3 min wav file at 8000 khz of samping rate and 8 bits of resolution ------------- |
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| mit | Posted: 22 May 2018, 12:30 PM |
 yeah whatever Admin Posts: 538 Joined: 4-May 16 |
If it has 200000 kilobytes, you can fit a whole lot more than that! I think you might need to check that number again. I assume you mean 8kHz, in which case 3 minutes at 8 bit resolution would take 3 * 60 * 8000 = 1440000 bytes = 1.37 megabytes. I doubt you have enough program memory for that, but maybe you can read it from an SD card. Or, look into storing compressed audio. ------------- |
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| DAVID | Posted: 22 May 2018, 10:15 PM |
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I love mcus Member Posts: 237 Joined: 10-September 17 |
so i was wrong because i use c to code so the whole compiler crash because of file size and also the internal flash is only 250 kilobytes so it would not fit so a look to a solution which is using a spi flash memory and then just read from it ------------- |
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