[openal] Listing/accessing specific input channels

violini info at violini.de
Sat Apr 28 03:25:16 EDT 2018 

I didn’t have any success trying to access the info printed to stderr, I don’t know how to do this. But I ran the openal-info32 utility though that comes with Openal-Soft, I don’t know if the information that app prints out is relevant to my problem. Thanks again!



C:\>openal-info32
Available playback devices:
AL lib: (II) alc_initconfig: Initializing library v1.18.2-ce607609 v1.18
AL lib: (II) alc_initconfig: Supported backends: mmdevapi, dsound, winmm, null,
wave
AL lib: (II) ReadALConfig: Loading config C:\Dokumente und Einstellungen\xxxxxxx
xxxxx\Anwendungsdaten\alsoft.ini...
AL lib: (II) GetProcPath: Got: C:
AL lib: (II) ReadALConfig: Loading config C:\alsoft.ini...
AL lib: (II) GetConfigValue: Key disable-cpu-exts not found
AL lib: (II) FillCPUCaps: Detected max CPUID function: 0xd (ext. 0x80000008)
AL lib: (II) FillCPUCaps: Vendor ID: ""
AL lib: (II) FillCPUCaps: Name: "Intel(R) Core(TM) i3-4130 CPU @ 3.40GHz"
AL lib: (II) FillCPUCaps: Extensions: +SSE +SSE2 +SSE3 +SSE4.1
AL lib: (II) GetConfigValue: Key rt-prio not found
AL lib: (II) GetConfigValue: Key resampler not found
AL lib: (II) GetConfigValue: Key trap-al-error not found
AL lib: (II) GetConfigValue: Key trap-alc-error not found
AL lib: (II) GetConfigValue: Key reverb/boost not found
AL lib: (II) GetConfigValue: Key reverb/emulate-eax not found
AL lib: (II) GetConfigValue: Key drivers not found
AL lib: (II) ALCmmdevProxy_messageHandler: Starting message thread
AL lib: (WW) ALCmmdevProxy_messageHandler: Failed to create IMMDeviceEnumerator
instance: 0x80040154
AL lib: (WW) alc_initconfig: Failed to initialize backend "mmdevapi"
AL lib: (II) alc_initconfig: Initialized backend "dsound"
AL lib: (II) alc_initconfig: Added "dsound" for playback
AL lib: (II) alc_initconfig: Added "dsound" for capture
AL lib: (II) GetConfigValue: Key excludefx not found
AL lib: (II) GetConfigValue: Key default-reverb not found
AL lib: (II) DSoundEnumDevices: Got device "OpenAL Soft on Steinberg UR44", GUID
 "{BD6DD71A-3DEB-11D1-B171-00C04FC20003}"
AL lib: (II) DSoundEnumDevices: Got device "OpenAL Soft on Realtek HD Audio outp
ut", GUID "{BD6DD71A-3DEB-11D1-B171-00C04FC20001}"
    OpenAL Soft on Steinberg UR44
    OpenAL Soft on Realtek HD Audio output
Available capture devices:
AL lib: (II) DSoundEnumDevices: Got device "OpenAL Soft on Steinberg UR44", GUID
 "{BD6DD71B-3DEB-11D1-B171-00C04FC20003}"
AL lib: (II) DSoundEnumDevices: Got device "OpenAL Soft on Realtek HD Audio Inpu
t", GUID "{BD6DD71B-3DEB-11D1-B171-00C04FC20000}"
    OpenAL Soft on Steinberg UR44
    OpenAL Soft on Realtek HD Audio Input
Default playback device: OpenAL Soft on Steinberg UR44
Default capture device: OpenAL Soft on Steinberg UR44
ALC version: 1.1
AL lib: (II) GetConfigValue: Key channels not found
AL lib: (II) GetConfigValue: Key sample-type not found
AL lib: (II) GetConfigValue: Key frequency not found
AL lib: (II) GetConfigValue: Key periods not found
AL lib: (II) GetConfigValue: Key period_size not found
AL lib: (II) GetConfigValue: Key sources not found
AL lib: (II) GetConfigValue: Key slots not found
AL lib: (II) GetConfigValue: Key sends not found
AL lib: (II) GetConfigValue: Key ambi-format not found
AL lib: (II) alcOpenDevice: Created device 00EC0050, "OpenAL Soft on Steinberg U
R44"

** Info for device "OpenAL Soft on Steinberg UR44" **
ALC version: 1.1
ALC extensions:
    ALC_ENUMERATE_ALL_EXT, ALC_ENUMERATION_EXT, ALC_EXT_CAPTURE,
    ALC_EXT_DEDICATED, ALC_EXT_disconnect, ALC_EXT_EFX,
    ALC_EXT_thread_local_context, ALC_SOFTX_device_clock, ALC_SOFT_HRTF,
    ALC_SOFT_loopback, ALC_SOFT_output_limiter, ALC_SOFT_pause_device
AL lib: (II) GetConfigValue: Key hrtf-paths not found
AL lib: (II) GetConfigValue: Key hrtf_tables not found
AL lib: (II) DirectorySearch: Searching C:\*.mhr
AL lib: (II) DirectorySearch: Searching C:\Dokumente und Einstellungen\xxxxxxx
xxxxxxx\Anwendungsdaten\openal\hrtf\*.mhr
AL lib: (II) DirectorySearch: Searching C:\Dokumente und Einstellungen\All Users
\Anwendungsdaten\openal\hrtf\*.mhr
AL lib: (II) AddBuiltInEntry: Got new file "Built-In 44100hz"
AL lib: (II) AddBuiltInEntry: Adding built-in entry "Built-In 44100hz"
AL lib: (II) AddBuiltInEntry: Got new file "Built-In 48000hz"
AL lib: (II) AddBuiltInEntry: Adding built-in entry "Built-In 48000hz"
AL lib: (II) GetConfigValue: Key default-hrtf not found
Available HRTFs:
    Built-In 44100hz
    Built-In 48000hz
AL lib: (II) GetConfigValue: Key hrtf not found
AL lib: (II) UpdateDeviceParams: Pre-reset: Stereo, Float, 44100hz, 1024 update
size x3
AL lib: (II) UpdateDeviceParams: Post-reset: Stereo, Signed Short, 44100hz, 1024
 update size x3
AL lib: (II) GetConfigValue: Key stereo-mode not found
AL lib: (II) aluInitRenderer: HRTF disabled
AL lib: (II) GetConfigValue: Key cf_level not found
AL lib: (II) aluInitRenderer: BS2B disabled
AL lib: (II) GetConfigValue: Key stereo-encoding not found
AL lib: (II) aluInitRenderer: UHJ disabled
AL lib: (II) UpdateDeviceParams: Channel config, Dry: 2, FOA: 0, Real: 0
AL lib: (II) UpdateDeviceParams: Allocating 2 channels, 16384 bytes
AL lib: (II) UpdateDeviceParams: Max sources: 256 (255 + 1), effect slots: 64, s
ends: 2
AL lib: (II) GetConfigValue: Key dither not found
AL lib: (II) GetConfigValue: Key dither-depth not found
AL lib: (II) UpdateDeviceParams: Dithering enabled (16-bit, 32768)
AL lib: (II) GetConfigValue: Key output-limiter not found
AL lib: (II) UpdateDeviceParams: Output limiter enabled
AL lib: (II) GetConfigValue: Key volume-adjust not found
AL lib: (II) alcCreateContext: Created context 0003D1B0
OpenAL vendor string: OpenAL Community
OpenAL renderer string: OpenAL Soft
OpenAL version string: 1.1 ALSOFT 1.18.2
OpenAL extensions:
    AL_EXT_ALAW, AL_EXT_BFORMAT, AL_EXT_DOUBLE, AL_EXT_EXPONENT_DISTANCE,
    AL_EXT_FLOAT32, AL_EXT_IMA4, AL_EXT_LINEAR_DISTANCE, AL_EXT_MCFORMATS,
    AL_EXT_MULAW, AL_EXT_MULAW_BFORMAT, AL_EXT_MULAW_MCFORMATS, AL_EXT_OFFSET,
    AL_EXT_source_distance_model, AL_EXT_SOURCE_RADIUS, AL_EXT_STEREO_ANGLES,
    AL_LOKI_quadriphonic, AL_SOFT_block_alignment, AL_SOFT_deferred_updates,
    AL_SOFT_direct_channels, AL_SOFT_gain_clamp_ex, AL_SOFT_loop_points,
    AL_SOFT_MSADPCM, AL_SOFT_source_latency, AL_SOFT_source_length,
    AL_SOFT_source_resampler, AL_SOFT_source_spatialize
Available resamplers:
    Nearest
    Linear *
    4-Point Sinc
    Band-limited Sinc (12/24)
EFX version: 1.0
Max auxiliary sends: 2
Supported filters:
    Low-pass, High-pass, Band-pass
Supported effects:
    EAX Reverb, Reverb, Chorus, Distortion, Echo, Flanger, Ring Modulator,
    Compressor, Equalizer, Dedicated Dialog, Dedicated LFE
AL lib: (EE) ALCdsoundPlayback_mixerProc: WaitForSingleObjectEx error: 0x102
AL lib: (II) FreeContext: 0003D1B0
AL lib: (II) FreeContext: Freed unapplied listener update 0003CD70
AL lib: (II) FreeContext: Freed 0 listener property objects
AL lib: (II) FreeDevice: 00EC0050




> On 27.04.2018, at 8:52 , violini <info at violini.de> wrote:
> 
> 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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>> http://openal.org/mailman/listinfo/openal
> 
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