vnc2swf-users

[Vnc2swf-users] How to record with audio

[Bogdan Z. <bz...@gm...>]

Hi,
I would like to know how can I record a movie with audio, that is, to 
speak the explanations while I click on screen during recording, so the 
final swf will have both the video and audio
I tried to speak into microphone while the recording was happening, but 
no audio was recorded

Thank you
B. Zamfir

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Re: [Vnc2swf-users] How to record with audio

[Neal H. <nh...@do...>]

On Thursday 27 September 2007, Bogdan Zamfir wrote:
> Hi,
> I would like to know how can I record a movie with audio, that is, to=20
> speak the explanations while I click on screen during recording, so the=20
> final swf will have both the video and audio
> I tried to speak into microphone while the recording was happening, but=20
> no audio was recorded
>=20
> Thank you
> B. Zamfir

Hi,

I've been doing this 4 lectures per week for 3 weeks now.
Attached is a shell script I execute at the start of each lecture.
Its complicated by the fact that:
=A0 - it chooses file names based on date and time
=A0 - it puts them in directories specific to course,
=A0 =A0 also based on date and time
=A0 - it launches something to try to check that the
=A0 =A0 recording is working, as I've had trouble with that
=A0 =A0 and I sometimes forget to check at the start of the
=A0 =A0 lecture. =A0But basically, it does something like the following:

=A0 =A0 =A0f=3D`date +"%F-%T"`
=A0 =A0 =A0p=3D/files/local/src/Python/pyvnc2swf-0.9.3/pyvnc2swf/vnc2swf.py
=A0 =A0 =A0rec=3D"rec -c1 -r11025 -u -1 -q $f.wav vol 5 db"

=A0 =A0 =A0function dorec() {
=A0 =A0 =A0 =A0 =A0x11vnc -viewonly -wait 100 -defer 100 &
=A0 =A0 =A0 =A0 =A0sleep 3
=A0 =A0 =A0 =A0 =A0lecture-check-recording $f.swf $f.wav &
=A0 =A0 =A0 =A0 python $p -n -o $f.swf -r 4 -S "$rec" =A0localhost:0
=A0 =A0 =A0}

=A0 =A0 =A0dorec


=A0 =A0- then, later, a script does:

=A0 =A0 lame --resample 11.025 $src.wav $src.mp3
=A0 =A0 p=3D/files/local/src/Python/pyvnc2swf-0.9.3/pyvnc2swf/edit.py=20
=A0 =A0 python $p -o $dst.swf -a $src.mp3 -c -K 500 $src.swf

=A0 =A0 where src and dst are determined by the script ...

=A0 =A0 Of course, if you don't use Linux, none of this will make any sense.
=A0 =A0 Sorry about that.

neal


=2D-=20
Neal Holtz                             http://cee.carleton.ca/~nholtz
Dept. of Civil and Environmental Engineering,   Carleton University,  =20
Ottawa, Ontario, Canada K1S 5B6.                   nh...@do...

Re: [Vnc2swf-users] How to record with audio

[Bogdan Z. <bz...@gm...>]

Hi Neal,
Thanks for answer
Indeed I do not use linux, but your suggestion gave me a thought.
I can use another way to script starting this, to have both sound and 
video recording at the same time.

Regards
Bogdan


Neal Holtz wrote:
> On Thursday 27 September 2007, Bogdan Zamfir wrote:
>   
>> Hi,
>> I would like to know how can I record a movie with audio, that is, to 
>> speak the explanations while I click on screen during recording, so the 
>> final swf will have both the video and audio
>> I tried to speak into microphone while the recording was happening, but 
>> no audio was recorded
>>
>> Thank you
>> B. Zamfir
>>     
>
> Hi,
>
> I've been doing this 4 lectures per week for 3 weeks now.
> Attached is a shell script I execute at the start of each lecture.
> Its complicated by the fact that:
>   - it chooses file names based on date and time
>   - it puts them in directories specific to course,
>     also based on date and time
>   - it launches something to try to check that the
>     recording is working, as I've had trouble with that
>     and I sometimes forget to check at the start of the
>     lecture.  But basically, it does something like the following:
>
>      f=`date +"%F-%T"`
>      p=/files/local/src/Python/pyvnc2swf-0.9.3/pyvnc2swf/vnc2swf.py
>      rec="rec -c1 -r11025 -u -1 -q $f.wav vol 5 db"
>
>      function dorec() {
>          x11vnc -viewonly -wait 100 -defer 100 &
>          sleep 3
>          lecture-check-recording $f.swf $f.wav &
>         python $p -n -o $f.swf -r 4 -S "$rec"  localhost:0
>      }
>
>      dorec
>
>
>    - then, later, a script does:
>
>     lame --resample 11.025 $src.wav $src.mp3
>     p=/files/local/src/Python/pyvnc2swf-0.9.3/pyvnc2swf/edit.py 
>     python $p -o $dst.swf -a $src.mp3 -c -K 500 $src.swf
>
>     where src and dst are determined by the script ...
>
>     Of course, if you don't use Linux, none of this will make any sense.
>     Sorry about that.
>
> neal
>
>
>   
> ------------------------------------------------------------------------
>
> No virus found in this incoming message.
> Checked by AVG Free Edition. 
> Version: 7.5.488 / Virus Database: 269.13.32/1032 - Release Date: 9/26/2007 8:20 PM
>   

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Re: [Vnc2swf-users] How to record with audio

[Bogdan Z. <bz...@gm...>]

Hi,

What is the difference between record mode: Shape, Video and VNCRec?

Thanks
Bogdan

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[Vnc2swf-users] How to record with audio; How to pass password in command line

[Bogdan Z. <bz...@gm...>]

Hi,

I saw if I launch vnc2swf -h, I see a help file
There it is a command parameter, -a audiofile.mp3
Does this means, if I start it with a commandline with this param, it 
will record both video and audio? Is it enough to have the mic connected 
to pc and set properly (e.g, to work ok in sound recorder or skype), or 
I need something else?

And how to pass pwd in commad line?
The param in help reads
-P pwdfile

What is pwdfile? a text file for example with the password, or can I 
pass pwd in command line directly?
Thank you

Bogdan
Thanks.

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Re: [Vnc2swf-users] How to record with audio, and why does it sometimes not work?

[Neal H. <nh...@do...>]

This is likely the wrong group for this, because I don't think its
a vnc2swf problem -- but just in case anyone has experienced
it:     

       At random times, the sound recorder fails to start.

I'm using a Fujitsu Lifebook Table, T-4220 (I think).
Gutsy Gopher Ubuntu (pre-Beta), with updates faithfully applied
every day.

4 lectures a week for 3 weeks, so far.  Almost always I have
the tablet PC on, in my office.  I shut the lid (so it goes into
suspend mode), go to lecture, plug in a bunch of stuff,
resume from suspend, and restart X (so it sees the projector
plugged into VGA; I think you are supposed to be able to do
this with xrandr, but haven't tried yet).

I run a shell script that basically does:

        p=/files/local/src/Python/pyvnc2swf-0.9.3/pyvnc2swf/vnc2swf.py
        rec="rec -c1 -r11025 -u -1 -q $f.wav vol 5 db"
        x11vnc -viewonly -wait 100 -defer 100 &
        python $p -n -o $f.swf -r 4 -S "$rec"  localhost:0

Every once in a while, I get this in the log file I keep:

    ...
    26/09/2007 13:05:34 Using raw encoding for client 127.0.0.1
    ALSA lib pcm_dsnoop.c:606:(snd_pcm_dsnoop_open) unable to open slave
    rec stio: Failed reading `default': cannot open audio device
    ...

And of course, no sound is recorded.
Yesterday, at the start of a lecture, it did this 4 times in succession,
and I even rebooted once in between.  I gave up, and they get
a slient movie (considering yesterdays lecture, that might be a blessing, ;-))

After lecture, suspend tablet, go back to my office, and it
works fine.  I can't seem to make it fail in my office when  I 
can do something about it.

Help!

-- 
Neal Holtz                             http://cee.carleton.ca/~nholtz
Dept. of Civil and Environmental Engineering,   Carleton University,   
Ottawa, Ontario, Canada K1S 5B6.                   nh...@do...