[maemo-developers] Audio in on N800 and N810

[From: Simon Pickering]

> Sampling rates: Is it true, that the N800 just supports 8 KHz sampling
> rate with the microphone in? If yes, is it the same with the N810?
> The N810 would be nice because of its build in keyboard. The PSK31
> software isn't really that usable with a on screen keyboard.

It looks like the N810 has a different audio codec to the N800:

N800:
[ 1.031250] ALSA device list:
[ 1.031250] #0: OMAP24xx EAC with codec TSC2301

N810:
[ 1.085937] ALSA device list:
[ 1.085937] #0: OMAP24xx EAC with codec TLV320AIC33

N810 dmesg from here http://thoughtfix.com/tabletblog/dmesg.txt.
N800 w/ OS2008 from here: 
http://www.internettablettalk.com/forums/showpost.php?p=84835&postcount=159

My understanding is that the N800 can only record at 8kHz (see the 
bottom of page 5 here: http://focus.ti.com/lit/ds/symlink/tsc2301.pdf).

Looks like the N810's codec is a bit more snazzy: 
http://focus.ti.com/lit/ds/symlink/tlv320aic33.pdf

Cheers,


Simon