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[Q] Camcorderproblem: Only one channel recording instead of stereo after 4.4.2 update

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By Chdcmac, Junior Member on 24th February 2014, 05:20 PM
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After I updated my HTC One to Android KitKat the Phone only records with one channel (left channel) instead of two (stereo) when using the camcorderfunction.

Anyone having the same issue?
 
 
24th February 2014, 05:36 PM |#2  
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What Rom are you on? I wrote about that when I installed Viper over the weekend. Noticed exact same thing. Thought my second Mic was dead. The only one active is the Mic on the bottom.

But, I returned to my 4.4 stock kit Kat T-Mobile US Rom, and stereo recording is working.

If you can list what Rom you are on that would be great.

Sent from my HTC One using Tapatalk
24th February 2014, 05:39 PM |#3  
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Quote:
Originally Posted by gustav30

What Rom are you on? I wrote about that when I installed Viper over the weekend. Noticed exact same thing. Thought my second Mic was dead. The only one active is the Mic on the bottom.

But, I returned to my 4.4 stock kit Kat T-Mobile US Rom, and stereo recording is working.

If you can list what Rom you are on that would be great.

Sent from my HTC One using Tapatalk

I'm using the stock rom. Just updated from stock 4.3 to 4.4 (4.19.401.9) I'm from Holland. After the factory reset the problem still excist
Last edited by Chdcmac; 24th February 2014 at 05:45 PM.
24th February 2014, 05:50 PM |#4  
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Not sure...we need more testers to try some video recording and post results.

The problem is that testing a video and relying on the phone speakers to show the problem won't work, since the phone speakers will play the left track through both speakers, giving the appearance that audio was recorded in stereo...

The video needs to be listened through earphones, or copy the video from the phone to PC/MAC and then give it a listen.
24th February 2014, 06:01 PM |#5  
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Quote:
Originally Posted by gustav30

Not sure...we need more testers to try some video recording and post results.

The problem is that testing a video and relying on the phone speakers to show the problem won't work, since the phone speakers will play the left track through both speakers, giving the appearance that audio was recorded in stereo...

The video needs to be listened through earphones, or copy the video from the phone to PC/MAC and then give it a listen.

I've copied the video to the pc. The sound is still coming from the left channel. I hope this isn't permanently.
24th February 2014, 09:41 PM |#6  
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Quote:
Originally Posted by Chdcmac

After I updated my HTC One to Android KitKat the Phone only records with one channel (left channel) instead of two (stereo) when using the camcorderfunction.

Anyone having the same issue?

Anyone, please? Am I the only one here who has this problem with 4.4? (OTA)
24th February 2014, 11:37 PM |#7  
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I've seen a few posts in the Rom threads where people have brought this up. Saw a post in Revolution and Insert Coin threads.

But we need more people to test video recording and then listen through ear buds or on computer.

Anyone who is on the latest and greatest Sense 5.5 kit Kat builds, can you please make a short video using the Sense camera app, and listen to it through headphones or on computer? Do you only have audio coming out of the left channel?


Sent from my HTC One using Tapatalk
25th February 2014, 06:42 PM |#8  
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Quote:
Originally Posted by gustav30

I've seen a few posts in the Rom threads where people have brought this up. Saw a post in Revolution and Insert Coin threads.

But we need more people to test video recording and then listen through ear buds or on computer.

Anyone who is on the latest and greatest Sense 5.5 kit Kat builds, can you please make a short video using the Sense camera app, and listen to it through headphones or on computer? Do you only have audio coming out of the left channel?


Sent from my HTC One using Tapatalk

Yes. But strangely, when I restart the phone and make a video, then it works perfectly :S But when I make a second video, the audio comes only from the left channel.
25th March 2014, 09:11 AM |#9  
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I can confirm that.
There is a command, which HTC uses to activate the camcorder mic. Maybe HTC forgot to call this procedure when restarting the 2nd recording.
The function is already present in the phone application to enable the camcorder mic for the noise canceling function.
I use this as a workarround to enable stereo recording.
Maybe someone can compare the old and the new video app to find the "enableCamcorderMic" Function and make it available for other applications. There are some applications which allow to select between the main and the camcorder mic. They work on most devices, which have 2 mics, but not on the HTC ONE. This can be tricked out by switching to the phone application while a recording-application already records. Start a call and cancel the call. Then return to the recording app via taskmanager and you will have 2 channel recording. Unfortunately this does not work for the video app, which cancels video recording when switching to the phone app. But I did not need the workarround in the past for the videoapplicatiom. But now HTC has a bug in it. I hope someone could be able to isolate the "enableCamcorderMic" function.

Ralf
26th March 2014, 01:11 AM |#10  
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Quote:
Originally Posted by audioralf

I can confirm that.
There is a command, which HTC uses to activate the camcorder mic. Maybe HTC forgot to call this procedure when restarting the 2nd recording.
The function is already present in the phone application to enable the camcorder mic for the noise canceling function.
I use this as a workarround to enable stereo recording.
Maybe someone can compare the old and the new video app to find the "enableCamcorderMic" Function and make it available for other applications. There are some applications which allow to select between the main and the camcorder mic. They work on most devices, which have 2 mics, but not on the HTC ONE. This can be tricked out by switching to the phone application while a recording-application already records. Start a call and cancel the call. Then return to the recording app via taskmanager and you will have 2 channel recording. Unfortunately this does not work for the video app, which cancels video recording when switching to the phone app. But I did not need the workarround in the past for the videoapplicatiom. But now HTC has a bug in it. I hope someone could be able to isolate the "enableCamcorderMic" function.

Ralf

Hi - can you explain in more detail what your workaround is? Take first video - then open phone app - then go back to camera app? Or does this not work anymore.

Anyone else experience this issue of only getting stereo recording in the first go around...exit camera app....go back to camera app start a new video.
listen to the second video you took through headphones or on computer - do you hear both channels?
26th March 2014, 08:16 AM |#11  
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Quote:
Originally Posted by gustav30

Hi - can you explain in more detail what your workaround is? Take first video - then open phone app - then go back to camera app? Or does this not work anymore.

Anyone else experience this issue of only getting stereo recording in the first go around...exit camera app....go back to camera app start a new video.
listen to the second video you took through headphones or on computer - do you hear both channels?

I described it more detailed here But unfortunately it does not help for the new camera bug, because the video application stops recording, when switching to the phone application. Normal audio application continue recording when taking or receiving a call, so they benefit from the oping of the camcorder channel which the phone application does for the noise canceling funciton.
Did you try to install the old video application from older stock ROM to your phone. Maybe that helps.
Ralf

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