>from the driver source, it would appear an issue with whether the card
>is using 16 or 8 bit DMA. if its using 8 bit DMA, you don't get
>S16_LE, which is one of the two formats Ardour can use (S32_LE being
>the other)
>
>it appears that there is a control for the card that sets the DMA
>mode; alsactl or amixer or aset should set/display it. its called
>"16-bit DMA allocation". its not quite clear to me how it works.
[/usr/src/ardour] cat /proc/dma
1: SoundBlaster - 8bit
4: cascade
5: SoundBlaster - 16bit
and in /etc/asound.state i find:
state.awe64 {
control.1 {
comment.access 'read write'
comment.type ENUMERATED
comment.item.0 Auto
comment.item.1 Playback
comment.item.2 Capture
iface PCM
name '16-bit DMA Allocation'
value Auto
}
[...]
}
so shouldn't the driver silently turn 16bit dma on if it wasn't already?
tim
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