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Recording from sound card internally on X220

X200/X201/X220 (including equivalent tablet models) and X300/X301 Series
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hyde
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Recording from sound card internally on X220

#1 Post by hyde » Wed Nov 09, 2011 12:56 pm

Hi, since X220 does not have individual microphone and headphone jacks, it makes it impossible to loop audio in order to record playback.
This is especially important when trying to use screen capture programs like cam studio.
The error I am getting is WaveoutGetSelectControl() failed which is discussed here http://camstudio.org/forum/discussion/3 ... -failed/p1 but most of the workarounds do not work in X220 for some reason because it also has just one audio out and recording device.

Does anyone have any suggestions on how to record sound that's being played-back? I tried to record from microphone, but it does not work either, most likely due to noise cancellation (system is probably trying to avoid feedback by muting the recording device when there is a playback at the same time, some sort of echo stopping feature?). :??: I get like 1 second sound then it it muted.

8/18/11 - X220 i5-2540M, IPS, Intel 6205 Wifi, 8GB, U2312HM
1/15/12 - S405 (Wife's), A6-4455M, 14", 4GB
7/02/15 - T450s i5-5300U, 14" FHD IPS, FP, 12GB
7/1/20 - T490 i5-10210U, 24GB, 14" FHD TS IPS, 512GB NVMe,
5/20/23 - T14 Gen 3 AMD 6650U, 1TB, 32GB, WUXGA


hyde
Junior Member
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Posts: 372
Joined: Fri Jul 08, 2011 8:12 pm
Location: New York, NY

Re: Recording from sound card internally on X220

#3 Post by hyde » Wed Nov 09, 2011 10:23 pm

Thank you, this is pretty cool. It works nice but I can't hear what is playing back when I need to record using VAC.
Is there anyway to duplicate the output to speakers? In my playback devices I can only select either Speakers or VAC.

8/18/11 - X220 i5-2540M, IPS, Intel 6205 Wifi, 8GB, U2312HM
1/15/12 - S405 (Wife's), A6-4455M, 14", 4GB
7/02/15 - T450s i5-5300U, 14" FHD IPS, FP, 12GB
7/1/20 - T490 i5-10210U, 24GB, 14" FHD TS IPS, 512GB NVMe,
5/20/23 - T14 Gen 3 AMD 6650U, 1TB, 32GB, WUXGA

EOMtp
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Re: Recording from sound card internally on X220

#4 Post by EOMtp » Thu Nov 10, 2011 12:11 am

hyde wrote:Is there anyway to duplicate the output to speakers?
Yes. Read the section titled Simple Cable Usage in the user manual (file vac.chm in the installation folder). It discusses the Audio Repeater, which can do precisely what you want.

hyde
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Posts: 372
Joined: Fri Jul 08, 2011 8:12 pm
Location: New York, NY

Re: Recording from sound card internally on X220

#5 Post by hyde » Thu Nov 10, 2011 12:55 am

I guess I got excited.. You are right. All I had to do is change the default output to VAC and then select recording device as VAC and say "Listen" and Playback through on-board sound. It works that way, but the hardware volume buttons don't work then. It is OK for the time being then I switch the output back to on-board sound.

Thanks again, it works great.

8/18/11 - X220 i5-2540M, IPS, Intel 6205 Wifi, 8GB, U2312HM
1/15/12 - S405 (Wife's), A6-4455M, 14", 4GB
7/02/15 - T450s i5-5300U, 14" FHD IPS, FP, 12GB
7/1/20 - T490 i5-10210U, 24GB, 14" FHD TS IPS, 512GB NVMe,
5/20/23 - T14 Gen 3 AMD 6650U, 1TB, 32GB, WUXGA

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