My sound card supports hardware upsampling i.e. I do not need to use the software up sampling done by plugins like dmix etc. For testing hw up sampling, I tried to play an 8K sample rate wav file as follows, but some how it is being upsampled, I think I am missing something.

# aplay -Dhw:0,0 8k.wav -v

Playing WAVE '8k.wav' : Signed 16 bit Little Endian, Rate 8000 Hz, Stereo Warning: rate is not accurate (requested = 8000Hz, got = 44100Hz) please, try the plug plugin Hardware PCM card 0 'OMAP850 EAC' device 0 subdevice 0 Its setup is: stream : PLAYBACK access : RW_INTERLEAVED format : S16_LE subformat : STD channels : 2 rate : 44100 exact rate : 44100 (44100/1) msbits : 16 buffer_size : 22052 period_size : 5513 period_time : 125011 tick_time : 10000 tstamp_mode : NONE period_step : 1 sleep_min : 0 avail_min : 5513 xfer_align : 5513 start_threshold : 22052 stop_threshold : 22052 silence_threshold: 0 silence_size : 0 boundary : 1445199872

I have attached my alsa.conf.

-pharaoh.