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Audio is recording in Mono when it should be Stereo

Posted: Sat Jul 06, 2013 6:52 am
by Tterraj42
Just got one of the original DSs with capture board pre-installed. Everything works well so far, except the audio is only coming through in Mono.

So far, I haven't found any settings for mono vs. stereo. Any thoughts / suggestions?

Thanks,
Tterraj42

Edit:

It's also quite sensitive. I have the volume turned down to 1 and it's still loud enough to hear clearly. Much higher and there's an appreciable amount of static. Trying to tweak all the settings I can find, but so far nothing is yielding good results.

Edit:

Is there an eta for software supported audio recording?

Re: Audio is recording in Mono when it should be Stereo

Posted: Sat Jul 06, 2013 9:03 am
by PKTriad
Your line-in might be mono only? Not sure.

Re: Audio is recording in Mono when it should be Stereo

Posted: Sat Jul 06, 2013 9:40 am
by Tterraj42
PKTriad wrote:Your line-in might be mono only? Not sure.
Possibly, I've nothing I can test at the moment to rule that out. This might not be related but the "Default Format" is "2 channel". But if that's the case, and the mic in is just simply mono. How can I go about recording stereo sound from the DS? Nothing is coming to mind atm... :\

Re: Audio is recording in Mono when it should be Stereo

Posted: Sat Jul 06, 2013 2:54 pm
by PKTriad
2 channel DOES mean stereo I think. My line-in is mono only, so I record sound using one of these:

Image

Image

Sorry about the quality, used my DSi camera. No clue how much one of these costs, it was a piece of equipment my dad had laying around. It records line-in or built-in microphone input into MP3 or WAV.

According to Google, they run $100, which is a bit steep. But I'm sure there's cheaper alternatives to recording stereo.

Re: Audio is recording in Mono when it should be Stereo

Posted: Sat Jul 06, 2013 3:02 pm
by Tterraj42
Interesting, I may look into that. Only problem is that I'd like to stream at the same time I'm recording. So I need the audio to get to the computer somehow. Not sure that device will do exactly what I need.

Re: Audio is recording in Mono when it should be Stereo

Posted: Sat Jul 06, 2013 3:09 pm
by loopy
Tterraj42 wrote:Just got one of the original DSs with capture board pre-installed. Everything works well so far, except the audio is only coming through in Mono.
You're not using a mono cable, are you?
Tterraj42 wrote:It's also quite sensitive. I have the volume turned down to 1 and it's still loud enough to hear clearly. Much higher and there's an appreciable amount of static. Trying to tweak all the settings I can find, but so far nothing is yielding good results.
You can adjust both the PC volume and DS volume, experiment with both. Also, the PC has two separate volume controls (for listening and for recording), are you changing the right one? Some mics have an extra "volume boost" setting, see if that's turned on.
Tterraj42 wrote:Is there an eta for software supported audio recording?
The software does support audio recording.
If you mean over USB, that will never happen. The DS capture board can't do audio capture.

Re: Audio is recording in Mono when it should be Stereo

Posted: Sat Jul 06, 2013 3:18 pm
by PKTriad
Tterraj42 wrote:Interesting, I may look into that. Only problem is that I'd like to stream at the same time I'm recording. So I need the audio to get to the computer somehow. Not sure that device will do exactly what I need.
You can listen to the input of that particular device with some headphones, so you could maybe use a splitter, or listen to line-in, then stream in mono and record in stereo? I dunno. Then again, mono only for a stream will present a problem for the listeners of the stream.

Re: Audio is recording in Mono when it should be Stereo

Posted: Sun Jul 07, 2013 3:46 am
by Tterraj42
loopy wrote:You're not using a mono cable, are you?
No. It's the 3.5mm audio cable that I used with my old vga monitor (the monitor had built in stereo speakers).
loopy wrote:You can adjust both the PC volume and DS volume, experiment with both. Also, the PC has two separate volume controls (for listening and for recording), are you changing the right one? Some mics have an extra "volume boost" setting, see if that's turned on.
There are indeed a lot of settings. I have the ds volume down as low as I could put it, and the mic input level was tested between 1 and 30. My speakers were around 20 or less. I'm trying to get a balanced setup so I can both make a good recording, and a good stream. But so far, the recorded audio is far quieter than the desktop audio (when using "listen to this device"), so it's either a quiet movie, or a loud stream :\
loopy wrote:The software does support audio recording. If you mean over USB, that will never happen. The DS capture board can't do audio capture.
Hmm? Oh, I see now. Read "Only video is output over USB currently; audio must be recorded from the headphone jack. The board is capable of doing digital audio capture over USB but it isn't supported yet, it'll be made available with a firmware update later" on the 3DS page and thought that would be for both. Guess the DS board is just different?
PKTriad wrote:You can listen to the input of that particular device with some headphones, so you could maybe use a splitter, or listen to line-in, then stream in mono and record in stereo? I dunno. Then again, mono only for a stream will present a problem for the listeners of the stream.
Heh, would be roundabout, but if it works, I guess. But yeah, still the problem of mono line in, I think.

I find this all a little confusing. But it seems most likely that the line in is mono only. So when I try and put stereo through it, one channel (if that's the right word?) just gets lost? Tch, the video's great, and the audio's 'mostly' there. Now just how can I take that 3.5mm stereo output from the ds and get it onto my computer... I'm still drawing a blank.

Any other thoughts?

Thanks,
Tterraj42

Re: Audio is recording in Mono when it should be Stereo

Posted: Sun Jul 07, 2013 4:15 am
by loopy
Tterraj42 wrote:Hmm? Oh, I see now. Read "Only video is output over USB currently; audio must be recorded from the headphone jack. The board is capable of doing digital audio capture over USB but it isn't supported yet, it'll be made available with a firmware update later" on the 3DS page and thought that would be for both. Guess the DS board is just different?
Yup. Different boards.
Tterraj42 wrote:I find this all a little confusing. But it seems most likely that the line in is mono only. So when I try and put stereo through it, one channel (if that's the right word?) just gets lost? Tch, the video's great, and the audio's 'mostly' there. Now just how can I take that 3.5mm stereo output from the ds and get it onto my computer... I'm still drawing a blank.

Any other thoughts?

Thanks,
Tterraj42
You're probably right. It's not uncommon for mic inputs to be mono only. Tried testing it with a different audio source, like an MP3 player?
You might have to go with a USB adapter for the audio. Since you want to do both voice + game recording for streaming, you'll probably want to have that anyway.

Re: Audio is recording in Mono when it should be Stereo

Posted: Sun Jul 07, 2013 5:15 am
by Tterraj42
loopy wrote:You're probably right. It's not uncommon for mic inputs to be mono only. Tried testing it with a different audio source, like an MP3 player?
You might have to go with a USB adapter for the audio. Since you want to do both voice + game recording for streaming, you'll probably want to have that anyway.
I don't have anything else I can quickly test it with, but the cable did stereo, and I can use headphones with the game for stereo as well, so that's most likely it. I'm looking for 3.5mm audio usb cables on amazon, but I keep finding things like "Don't get this, it's a trap". Anyone got a link for a good / verified working 3.5mm usb audio cable / seller? Would be most appreciated. I'll keep looking too.