Re: [linux-audio-dev] Juce now has ALSA support!

From: Julian Storer <jules@email-addr-hidden>
Date: Wed Mar 01 2006 - 20:42:37 EET

Lee Revell wrote:

>On Wed, 2006-03-01 at 12:51 +0000, Julian Storer wrote:
>
>
>>James Courtier-Dutton wrote:
>>
>>
>>
>>>Julian Storer wrote:
>>>
>>>
>>>
>>>>Am I right in assuming that by default you mean the "plughw:"
>>>>devices? On my machine the plughw: device glitched constantly, but
>>>>the hw: devices worked really well. There was also some other reason
>>>>I chose that.. can't remember offhand what it was though.
>>>>
>>>>
>>>"default" means just that. use the name "default" instead of
>>>plughw:.... or hw:0,0
>>>If the device glitched when using "plughw:" then it is a bug in ALSA
>>>or your application.
>>>How is you application deciding on sample rate?
>>>
>>>
>>>There is no sensible reason to ever use the "hw:0,0" device. Always
>>>use the "plug:front" and friends.
>>>If an application only works with "hw:0,0" it has been written wrongly.
>>>
>>>
>>>
>>Ok, at the risk of "spreading the myth" that the ALSA documentation is
>>bad... is this stuff actually explained anywhere?? It took me a day of
>>googling just to find out what the two numbers after "hw" meant! I never
>>saw anything mention "default" or "plug:front", etc.
>>
>>Not sure if it'd be appropriate anyway, though, as my API exposes a list
>>of drivers and lets the user choose which one to use, and the sample
>>rate, rather than just using the default driver.
>>
>>
>>
>
>Here is some information:
>
>http://www.sabi.co.uk/Notes/linuxSoundALSA.html
>
>You are right that there's not a lot of "user-level" documentation for
>ALSA, because it's not really intended to be used by end users - ALSA
>provides a complete HAL which more user friendly APIs like JACK are
>built on top of. You would not write a complex app in straight Xlib...
>
>The standard approach for open source development is to ask about it on
>one of the many mailing lists or IRC channels, rather than forging ahead
>on your own with only Google as your guide. Due to the proliferation of
>Wikis by less informed users, most of the information that Google
>returns is half-wrong.
>
>Lee
>
>
Thanks for the link - I'd not seen that page before. I'll have another
look at all this asap.
Received on Thu Mar 2 00:15:05 2006

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