search for: atmega168

Hello Mailing List, I am a Speex supporter and user that would really like to know how much memory Speex uses to decode a 8kHz, 16kHz and 32kHz (primarily the 8kHz) and is it possible to use a 1kBytes of RAM to decode a 8kHz stream? (I was thinking of the possibility of using a ATmega168 to decode Speex) //P?r, Sweden

...ist, >> I am a Speex supporter and user that would really like to know how much >> memory Speex uses to decode a 8kHz, 16kHz and 32kHz (primarily the 8kHz) >> and is it possible to use a 1kBytes of RAM to decode a 8kHz stream? (I >> was thinking of the possibility of using a ATmega168 to decode Speex) > > Speex would fit in 8 kB RAM, maybe in 4 kB, but certainly not in 1 kB. > Sorry. > > Jean-Marc > ok, that is not good for my plans... Is there any thing in the the 8kB of RAM that is always the same (lookup table etc.) or did you already think of that? I...

...lookup > table etc.) or did you already think of that? I told you the RAM requirements. The lookup tables are already counted as ROM. Basically, just one decoded frame already takes 320 bytes. Add the excitation memory and you've already blown the budget. > I'm curios since the > ATmega168 got 16kB of Flash that is as fast as the RAM (I think the chip > is made so it limits its maximum speed to the slowest memory, flash. it > also has some EEPROM besides the SRAM). It's not clear the code size + lookups would fit in the flash anyway. > Ps. ATmega spec: > FLASH: 16kB...