I'm trying to get audio recording working. I'm using OSSv4 built recently from mercurial source. Audio playback works fine, and I can record audio with the built-in microphone mounted on the screen bezel (although it's very sensitive to how you have your volume configured; too little and you only hear mumbling; too much and it breaks up into static). Unfortunately, I can't seem to record using the microphone jack instead of the internal microphone.
I've tried what seems like every possible setting in ossxmix to get it to switch inputs, with no success. Ossxmix is rather complicated for laptops (see "man oss_hdaudio", which says "Unfortunately the mixer and control panel interface (see ossmix(1)) for "generic" systems is very cryptic and difficult to understand. To solve problems with volumes or signal routing you need to start ossxmix(1) and change the controls one at time until you get the desired effect."), so I feel it's possible I'm still missing a checkbox or something somewhere which will switch the input.
I've also tried giving ossrecord different input devices, so:
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jbeard4@jacob-laptop:~$ ls /dev/oss/oss_hdaudio0/pcmin*
/dev/oss/oss_hdaudio0/pcmin0 /dev/oss/oss_hdaudio0/pcmin1
jbeard4@jacob-laptop:~$ rm test.wav; ossrecord -d /dev/oss/oss_hdaudio0/pcmin1 test.wav;
^Cjbeard4@jacob-laptop:~$ rm test.wav; ossrecord -d /dev/oss/oss_hdaudio0/pcmin0 test.wav;
But both inputs seem to record from the same device, the external mic. In ossxmix, there are two controls under "record", and each control seems to change the volume of pcmin1 and pcmin0, but they both correspond to the same physical device, the external mic.
Here is my system's complete information:
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jbeard4@jacob-laptop:~$ lspci
00:00.0 Host bridge: Advanced Micro Devices [AMD] RS780 Host Bridge
00:01.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (int gfx)
00:04.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (PCIE port 0)
00:05.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (PCIE port 1)
00:06.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (PCIE port 2)
00:11.0 SATA controller: ATI Technologies Inc SB700/SB800 SATA Controller [AHCI mode]
00:12.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 Controller
00:12.1 USB Controller: ATI Technologies Inc SB700 USB OHCI1 Controller
00:12.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller
00:13.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 Controller
00:13.1 USB Controller: ATI Technologies Inc SB700 USB OHCI1 Controller
00:13.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller
00:14.0 SMBus: ATI Technologies Inc SBx00 SMBus Controller (rev 3a)
00:14.1 IDE interface: ATI Technologies Inc SB700/SB800 IDE Controller
00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA)
00:14.3 ISA bridge: ATI Technologies Inc SB700/SB800 LPC host controller
00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge
00:14.5 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI2 Controller
00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 11h HyperTransport Configuration (rev 40)
00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 11h Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 11h DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 11h Miscellaneous Control
00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 11h Link Control
01:05.0 VGA compatible controller: ATI Technologies Inc RS780M/RS780MN [Radeon HD 3200 Graphics]
08:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g (rev 01)
09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 02)
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jbeard4@jacob-laptop:~$ ossmix -v3
Selected mixer 0/High Definition Audio ALC268
Known controls are:
jack.int-speaker.mode <mix|input> (currently mix)
jack.int-speaker.mute ON|OFF (currently OFF)
jack.int-speaker.speaker [<leftvol>:<rightvol>] (currently 51.9:51.9 dB)
jack.int-speaker.speaker-mute ON|OFF (currently ON)
jack.fp-black.mode1 <mix|input> (currently mix)
jack.fp-black.mute1 ON|OFF (currently OFF)
jack.fp-black.headphone [<leftvol>:<rightvol>] (currently 51.9:51.9 dB)
jack.fp-black.mute.headphone ON|OFF (currently OFF)
jack.fp-black.mute.speaker ON|OFF (currently OFF)
jack.fp-black.mode2 <speaker|input> (currently speaker)
jack.fp-black [<leftvol>:<rightvol>] (currently 39.9:39.9 dB)
jack.fp-black.mute2 ON|OFF (currently OFF)
jack.int-mic [<leftvol>:<rightvol>] (currently 39.9:39.9 dB)
record.select.select1 [<leftvol>:<rightvol>] (currently 7.4:7.4 dB)
record.select.select2 <speaker|int-mic> (currently int-mic)
record.select.select3 [<leftvol>:<rightvol>] (currently 2.9:2.9 dB)
record.select.select4 <speaker|int-mic> (currently int-mic)
vmix0-enable ON|OFF (currently ON)
vmix0-rate <decimal value> (currently 48000) (Read-only)
Sample rate currently used by virtual mixer on this device.
Use vmixctl(1) command to change the rate
vmix0-channels <Stereo|Multich> (currently Stereo)
vmix0-src <Fast|High|OFF> (currently Fast)
Sample rate conversion quality used by the virtual mixer.
Virtual mixer uses internally a fixed sampling rate that can be set
using the 'vmixctl rate' command (usually 48 kHz by default). Applications
that want to use different rates will be handled by performing automatic
sample rate conversions (SRC) in software. This operation will consume
some additional CPU time depending on the quality. The following
alternatives are availabe:
Fast: Use fast linear interpolation algorithm (low quality).
Low: Use slightly better linear interpolation
Medium: Use an algorithm that provides good quality with moderate CPU load.
High/High+/Production: Higher quality algorithms that consume more CPU resources.
OFF: No sample rate conversions. Sample rate locked to the master rate.
'Fast' will work best in most cases. Only users with high end audio
cards and speakers should use the other settings.
vmix0-outvol <monovol> (currently 25.0 dB)
vmix0-outvu [<leftVU>:<rightVU>] (currently 0:0) (Read-only)
vmix0-invol <monovol> (currently 17.3 dB)
vmix0-invu [<leftVU>:<rightVU>] (currently 0:0) (Read-only)
vmix0.pcm7 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB)
vmix01 [<leftVU>:<rightVU>] (currently 0:0) (Read-only)
vmix0.pcm8 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB)
vmix02 [<leftVU>:<rightVU>] (currently 0:0) (Read-only)
vmix0.pcm9 [<leftvol>:<rightvol>] (currently 13.4:13.4 dB)
vmix03 [<leftVU>:<rightVU>] (currently 0:0) (Read-only)
vmix0.pcm10 [<leftvol>:<rightvol>] (currently 16.1:16.1 dB)
vmix04 [<leftVU>:<rightVU>] (currently 0:0) (Read-only)
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jbeard4@jacob-laptop:~$ osstest
Sound subsystem and version: OSS 4.2 (b 2000/200910122257) (0x00040100)
Platform: Linux/x86_64 2.6.28-15-generic #52-Ubuntu SMP Wed Sep 9 10:48:52 UTC 2009
*** Scanning sound adapter #-1 ***
/dev/oss/oss_hdaudio0/pcm0 (audio engine 0): HD Audio play speaker
- Performing audio playback test...
<left> OK <right> OK <stereo> OK <measured srate 47957.00 Hz (-0.09%)>
/dev/oss/oss_hdaudio0/pcm1 (audio engine 1): HD Audio play headphone
- Performing audio playback test...
<left> OK <right> OK <stereo> OK <measured srate 47984.00 Hz (-0.03%)>
/dev/oss/oss_hdaudio0/spdout0 (audio engine 2): HD Audio play spdif-out
- Performing audio playback test...
<left> OK <right> OK <stereo> OK <measured srate 47975.00 Hz (-0.05%)>
/dev/oss/oss_hdaudio0/mdmout0 (audio engine 3): HD Audio play modem
- Performing audio playback test...
<left> OK <right> OK <stereo> OK <measured srate 214268.00 Hz (346.39%)>
/dev/oss/oss_hdaudio0/pcmin0 (audio engine 4): HD Audio rec select
- Skipping input only device
/dev/oss/oss_hdaudio0/pcmin1 (audio engine 5): HD Audio rec select
- Skipping input only device
/dev/oss/oss_hdaudio0/mdmin0 (audio engine 6): HD Audio rec modem
- Skipping input only device
*** All tests completed OK ***
If anyone has any advice as to how I can instruct oss to record from the internal mic jack, I would greatly appreciate it if you would let me know.
Thanks,
Jake