| Author |
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ATJaguarX
Guest
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 Posted:
Sat Nov 05, 2005 4:07 am Post subject:
Trying to capture from two seperate audio sources during vid |
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I have a Dazzle DVC80 and I am using it to capture video/audio from a
source. This works fine, but at the same time, I want to plug a mic
into my computer and record my voice while the video is being captured.
I cannot add my voice later because the video/audio source is a live
feed and I will be adding my own comments during the live feed.
The problem is that both Windows Movie Maker and Sony Vegas Video
require you to pick only one audio source during capture. In this
case, I have to choose either the Dazzle audio or the microphone audio.
Anyone have an idea how to do this?
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Ken Maltby
Guest
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| Posted:
Sat Nov 05, 2005 4:51 am Post subject:
Re: Trying to capture from two seperate audio sources during |
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"ATJaguarX" <ATJaguarX@gmail.com> wrote in message
news:1131142021.731418.326460@g44g2000cwa.googlegroups.com...
| Quote: | I have a Dazzle DVC80 and I am using it to capture video/audio from a
source. This works fine, but at the same time, I want to plug a mic
into my computer and record my voice while the video is being captured.
I cannot add my voice later because the video/audio source is a live
feed and I will be adding my own comments during the live feed.
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So are you "capturing" to a file? or "streaming" to a network?
Do you plan to mix your voice and the video's audio so that the
video's audio is muted when you speak?
| Quote: | The problem is that both Windows Movie Maker and Sony Vegas Video
require you to pick only one audio source during capture. In this
case, I have to choose either the Dazzle audio or the microphone audio.
Anyone have an idea how to do this?
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Why not feed both audio streams to a mixer before sending
the mixed audio to your capture/streaming card?
Luck;
Ken |
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Richard Crowley
Guest
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| Posted:
Sat Nov 05, 2005 5:17 am Post subject:
Re: Trying to capture from two seperate audio sources during |
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"ATJaguarX" wrote ...
| Quote: | I have a Dazzle DVC80 and I am using it to capture video/audio from a
source. This works fine, but at the same time, I want to plug a mic
into my computer and record my voice while the video is being captured.
I cannot add my voice later because the video/audio source is a live
feed and I will be adding my own comments during the live feed.
The problem is that both Windows Movie Maker and Sony Vegas Video
require you to pick only one audio source during capture. In this
case, I have to choose either the Dazzle audio or the microphone audio.
Anyone have an idea how to do this?
|
Does your computer also have a conventional sound "card"
(sometimes built into the motherboard, etc.)
Is your computer beefy enough to run your current audio/video
capture solution PLUS run a second audio recording application
(like Audacity, etc.)? That is what my first cut solution would be. |
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ATJaguarX
Guest
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| Posted:
Sat Nov 05, 2005 5:28 am Post subject:
Re: Trying to capture from two seperate audio sources during |
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I am capturing to a file (avi). This is the default capture format for
Vegas video. I then render to wmv.
No, I do not plan on muting the video's audio while I'm talking. Think
of a NASCAR race and people commentating. You still would want the
sounds of the cars driving by as the commentators talk. In essence,
that's what I'm trying to do.
I have thought about sending both streams to a mixer, but I'm trying to
keep my costs down if it is possible in the software instead of doing
it in hardware. |
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ATJaguarX
Guest
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| Posted:
Sat Nov 05, 2005 5:34 am Post subject:
Re: Trying to capture from two seperate audio sources during |
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The computer that I am attempting to use... yes and no. My computer is
a laptop that does not have a "line-in". It only has the mic in and
headphone jack.
It should be powerful enough to do everything. It's a 3.2 ghz with 1.5
gig of RAM.
I have thought about running a second audio recording (already have
Audacity installed), but I'm trying to do it all in one step. I'm
trying to avoid having to add a secondary audio stream in later.
I will be capturing clips from a live source in 10 minute increments
(approx). So, I really dont want to have to:
1. Start Video/Audio capture
2. Start secondary audio capture
3. Stop Video/Audio capture
4. Stop secondary audio capture
5. Mix secondary audio capture in
6. Goto step 1
Think again, to a NASCAR race. I would stop the capture during
commercials and have to restart again once the commercial was over.
So... after the 3 hour race is over, I would have 15 clips (commercial
free) and would have to then add my voice over later. To complicate
this, the NASCAR race would already have other commentators that I
would have to try to sync mine in with (can't have them respond to one
of my questions before I ask it).
A typical day would have approximately 15 (10 minute) captures and I
don't want to have to stream a secondary audio stream in for each
one... one at a time. |
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Ken Maltby
Guest
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| Posted:
Sat Nov 05, 2005 5:41 am Post subject:
Re: Trying to capture from two seperate audio sources during |
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"ATJaguarX" <ATJaguarX@gmail.com> wrote in message
news:1131147272.986634.291830@g44g2000cwa.googlegroups.com...
| Quote: | The computer that I am attempting to use... yes and no. My computer is
a laptop that does not have a "line-in". It only has the mic in and
headphone jack.
It should be powerful enough to do everything. It's a 3.2 ghz with 1.5
gig of RAM.
I have thought about running a second audio recording (already have
Audacity installed), but I'm trying to do it all in one step. I'm
trying to avoid having to add a secondary audio stream in later.
I will be capturing clips from a live source in 10 minute increments
(approx). So, I really dont want to have to:
1. Start Video/Audio capture
2. Start secondary audio capture
3. Stop Video/Audio capture
4. Stop secondary audio capture
5. Mix secondary audio capture in
6. Goto step 1
Think again, to a NASCAR race. I would stop the capture during
commercials and have to restart again once the commercial was over.
So... after the 3 hour race is over, I would have 15 clips (commercial
free) and would have to then add my voice over later. To complicate
this, the NASCAR race would already have other commentators that I
would have to try to sync mine in with (can't have them respond to one
of my questions before I ask it).
A typical day would have approximately 15 (10 minute) captures and I
don't want to have to stream a secondary audio stream in for each
one... one at a time.
150min., yeah that 2 1/2hours would really tax your attention |
span, wouldn't it.
You could try GraphEdit. Start a capture with the same
setup you would use for your project. Then use the "Connect
to Remote Graph" under the "File" tab. If it builds a graph,
you should be able to add a "filter" to mix two audio pins.
It is quite possible that your setup isn't able to make a graph.
But you should be able to find a 4 channel mixer for $25, and
that would be the easy way.
Luck;
Ken |
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ATJaguarX
Guest
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| Posted:
Sat Nov 05, 2005 5:41 am Post subject:
Re: Trying to capture from two seperate audio sources during |
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Richard Crowley wrote:
| Quote: | Since we don't know your entire workflow, not clear how step 5
works. And it would be unlikely that it could be done during
commercial breaks in any case. Also not clear how you will
cleanly identify the in- and out-cues for the commercial breaks
on-the-fly unless you have some kind of insider information, or
it is OK if your program is pretty rough around the edges.
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The audio would have to be added in later. For example, if I was to
record 15 video captures, i would name them 1-15. I would then added
audio mic captures 1-15... and would add them later matching up the
names.
I am not concerned about how clean the breaks are... I am only using
NASCAR as an example.... as with the commercials as well.
I would just need to be able to time the captures to start at
relatively the same time so that syncing them up later wouldn't be too
difficult. |
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Richard Crowley
Guest
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| Posted:
Sat Nov 05, 2005 5:41 am Post subject:
Re: Trying to capture from two seperate audio sources during |
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"ATJaguarX" wrote ...
| Quote: | The computer that I am attempting to use... yes and no. My computer is
a laptop that does not have a "line-in". It only has the mic in and
headphone jack.
|
(Assuming this is in response to my suggestion.
Mr. JaguarX removed all context, so we flying blind here.)
Audacity should record from the mic input just fine, so
no problem with not having a "line-in".
| Quote: |
It should be powerful enough to do everything. It's a 3.2 ghz with 1.5
gig of RAM.
I have thought about running a second audio recording (already have
Audacity installed), but I'm trying to do it all in one step. I'm
trying to avoid having to add a secondary audio stream in later.
|
Then it would appear that you have no choice but to feed your
commentary audio into your Dazzle gadget. Your added sound
track would be inextricably linked if you mixed the sound from
your source with the live microphone. An alternative might be to
feed the source into one channel, and your live mic into the other
channel (assuming you are recording stereo, and that the source
will not suffer from being reduced to mono.)
Then all you have to do is get a microphone up to line level to
feed into your Dazzle dongle. Of course, by the time you get
something with a mic preamp in it, you might as well spring for
a small audio mixer. I just saw one go on eBay for <$20 and
new at Radio Shack for <$40.
| Quote: |
I will be capturing clips from a live source in 10 minute increments
(approx). So, I really dont want to have to:
1. Start Video/Audio capture
2. Start secondary audio capture
3. Stop Video/Audio capture
4. Stop secondary audio capture
5. Mix secondary audio capture in
6. Goto step 1
Think again, to a NASCAR race. I would stop the capture during
commercials and have to restart again once the commercial was over.
So... after the 3 hour race is over, I would have 15 clips (commercial
free) and would have to then add my voice over later. To complicate
this, the NASCAR race would already have other commentators that I
would have to try to sync mine in with (can't have them respond to one
of my questions before I ask it).
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Since we don't know your entire workflow, not clear how step 5
works. And it would be unlikely that it could be done during
commercial breaks in any case. Also not clear how you will
cleanly identify the in- and out-cues for the commercial breaks
on-the-fly unless you have some kind of insider information, or
it is OK if your program is pretty rough around the edges. |
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Alpha
Guest
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| Posted:
Sat Nov 05, 2005 12:18 pm Post subject:
Re: Trying to capture from two seperate audio sources during |
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| Quote: | Why not feed both audio streams to a mixer before sending
the mixed audio to your capture/streaming card?
Luck;
Ken
Exactly. |
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Alpha
Guest
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| Posted:
Sat Nov 05, 2005 12:20 pm Post subject:
Re: Trying to capture from two seperate audio sources during |
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"ATJaguarX" <ATJaguarX@gmail.com> wrote in message
news:1131147272.986634.291830@g44g2000cwa.googlegroups.com...
| Quote: | The computer that I am attempting to use... yes and no. My computer is
a laptop that does not have a "line-in". It only has the mic in and
headphone jack.
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You can't do what you want without a mixer. Why do people expect miracles?
Do they expect the ether to transfer data? |
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Richard Crowley
Guest
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| Posted:
Sat Nov 05, 2005 7:42 pm Post subject:
Re: Trying to capture from two seperate audio sources during |
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"Alpha" <none@none.net> wrote in message
news:11mojpkl3tkdd63@corp.supernews.com...
| Quote: |
"ATJaguarX" <ATJaguarX@gmail.com> wrote in message
news:1131147272.986634.291830@g44g2000cwa.googlegroups.com...
The computer that I am attempting to use... yes and no. My computer
is
a laptop that does not have a "line-in". It only has the mic in and
headphone jack.
You can't do what you want without a mixer. Why do people expect
miracles? Do they expect the ether to transfer data?
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It is not impossible to do that completely in software.
But the market for a product like that is so microscopic
that we are unlikely to see anybody willing to write such
a thing. |
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ATJaguarX
Guest
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| Posted:
Mon Nov 07, 2005 10:30 pm Post subject:
Re: Trying to capture from two seperate audio sources during |
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Alpha wrote:
| Quote: | "ATJaguarX" <ATJaguarX@gmail.com> wrote in message
news:1131147272.986634.291830@g44g2000cwa.googlegroups.com...
The computer that I am attempting to use... yes and no. My computer is
a laptop that does not have a "line-in". It only has the mic in and
headphone jack.
You can't do what you want without a mixer. Why do people expect miracles?
Do they expect the ether to transfer data?
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I'm not expecting a miracle, I figured it was a pretty basic feature
(be able to capture from two audio sources).
I'm trying to keep my costs down and was hoping that if it was
available in a piece of hardware (mixer) that it would be available to
me in software. |
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ATJaguarX
Guest
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| Posted:
Mon Nov 07, 2005 10:31 pm Post subject:
Re: Trying to capture from two seperate audio sources during |
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Richard Crowley wrote:
| Quote: | It is not impossible to do that completely in software.
But the market for a product like that is so microscopic
that we are unlikely to see anybody willing to write such
a thing.
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I can see that... |
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