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| Sound on efika with openSuse 10.3 https://powerdeveloper.org/forums/viewtopic.php?f=12&t=1454 |
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| Author: | cmaciel [ Fri Dec 14, 2007 6:23 pm ] |
| Post subject: | Sound on efika with openSuse 10.3 |
Hello, What is the device created on openSuse for the microphone input on the efika? What would be the device name to use as the input device for a recording tool? Thanks Cesar |
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| Author: | Neko [ Sat Dec 15, 2007 6:40 am ] |
| Post subject: | Re: Sound on efika with openSuse 10.3 |
Quote: Hello,
Input isn't supported in the current revision of the audio driver.What is the device created on openSuse for the microphone input on the efika? What would be the device name to use as the input device for a recording tool? Thanks Cesar Feel free to implement the support though. |
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| Author: | cmaciel [ Sat Dec 15, 2007 12:55 pm ] |
| Post subject: | |
Hi Matt, Thanks for the response. Is this an openSuse limitation, or an efika limitation? Thanks Cesar |
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| Author: | Neko [ Mon Dec 17, 2007 1:30 pm ] |
| Post subject: | |
Quote: Hi Matt,
A driver limitation.Thanks for the response. Is this an openSuse limitation, or an efika limitation? Thanks Cesar The code that advertises, accepts and does interrupt handling and DMA transfers for incoming audio data does not exist. The code in the audio driver as it is, is really quite lame - as a horse with only one leg is really quite lame :) The audio Bestcomm tasks should accept data in variable sizes, but the driver locks it to 32-bit. Since most audio data generated by applications, from mp3 data etc. is 16-bit (or 24-bit if you are being fancy) this means some part of the audio data is being upsampled by the CPU. Effectively, it lacks efficiency, and the support you need, but they can be added. |
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