[openal] Listing/accessing specific input channels

[violini]

Thank you. I’ve tried all the inputs, with no change, so I think OpenAL Soft isn't receiving the samples from the system. 


I’m rather lost setting ALSOFT_LOGLEVEL to 3. How and where do I set this variable? And where will I see the output? I tried typing ‘set ALSOFT_LOGLEVEL = 3’ on the command line and then typed the name of my app; Project1.exe. My app opens, but I don’t see any information. I also tried setting environment variables for ALSOFT_LOGLEVEL and ALSOFT_LOGFILE in windows MyComputer->advanced->environment variables, but I don’t find a file of the name I chose for the logfile after running the app.

Any further help will be appreciated! 

> On 27.04.2018, at 0:59 , Chris Robinson <chris.kcat at gmail.com> wrote:
> 
> On 04/26/2018 10:28 AM, violini wrote:
>> Thanks for replying. Yes, I mean channel 1 and 2 comprises one stereo input. 3 and 4 another stereo input, 5 and 6 yet another. etc.
>> I just tried specifying AL_FORMAT_QUAD16, the program compiles and the first stereo input works, but the samples from the second stereo input are empty. I presume the samples collected are interleaved? As in 1,2,3,4,1,2,3,4,1,2…. Many thanks.
> 
> Correct, they're interleaved just like when used for buffer data. If the second two channels are empty, that would mean OpenAL Soft isn't getting any samples for them from the system.
> 
> Since you mentioned the device has 6 inputs total, I'd first check that you connected the inputs properly, and that the system isn't providing the second set as the 5th and 6th channels instead of 3rd and 4th.
> 
> Otherwise, it would be useful to see a trace log from OpenAL Soft. If you set the ALSOFT_LOGLEVEL environment variable to "3" when you run the app, it'll print a bunch of information to stderr (you can also set the ALSOFT_LOGFILE environment variable to a full path+filename to make it write the log there instead; just make sure the path exists and you have write permissions for it).
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