Re: [Alsa-user] Set Default ALSA Device

[Darrell B. <da...@ku...>]

i'm not sure how good the resampling is in alsa -- from my experience, 
the best upsampling you will get is from mplayer -- its 
processor-intensive, but its interpolation is good -- have a look at 
http://dalston.ku24.com/cluster/archives/000130.html for the settings 
i've used facing a similar problem on a VIA chipsset -- note that if 
your processor has an FPU (most do!) then you should be able to use 
floating-point interpolation, which is even better...of course all that 
is dependant on you using mplayer as your media player!

of course you would still be ebtter off with a card that does native 44.1...

cheers

Bill Unruh wrote:
> On Mon, 31 May 2004, Darrell Blake wrote:
> 
> 
>>Is it possible to set the default ALSA device? I have an Audigy2 NX card and
>>have to create a device (called 48000) to upmix 44000hz sample rates to
>>48000hz so they sound right. My ~/.asoundrc file looks like this at the
>>moment...
>>
>>pcm.48000Hz {
>>type plug
>>slave {
>>pcm "hw:0,0"
>>rate 48000
>>}
>>route_policy default
>>}
>>
>>Is there any way to get ALSA to automatically use this device so the sound
>>always sounds right?
>>
>>Darrell
> 
> 
> You would be far ahead if you got a soundcard which was capable of 44100
> rate from the word go. Time interpolating will always make your good
> soundcard sound like a cheap soundcard-- increase noise and all types of
> distortion. And if you are going to do it well (ie not introduce too
> much distortion) it will be slow with large latency. 
> 
>  I have never understood Creative's insistance of designing
> fixed frequency sound cards and then at a frequency which is not the
> standard CD frequency. 
> 
> 
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