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OT: Audacity noise removal question

J

Joerg

Jan 1, 1970
0
Jan said:
You are soooooo
The 2N2646 has been around since the earth was created,

Obviously you haven't checked prices on that thing lately. It's a prime
example of boutiqueware.
That is really nothing, 2012 - 15 = 1997.


So how about your designs? I mean stuff where there's a few thousand
rolling off the line per month.
 
J

Joerg

Jan 1, 1970
0
Jan said:
Jan Panteltje wrote:

[...]
And I have to add, that if 'electuur' (elektor) published a hobby project,
then all the electronic parts shops would stock up on the parts.
Some even advertised in the same magazine.
Radio Bulletin, Elektuur, radio Electronica, all of that time.
Elektuur then even had kits and ready made PCBs of very high quality.
One supported the other.
Yes parts cost money, hey, but not really that much to stop
people building things.

Still, I have never seen an affordable UJT back then. But the world did
not really need them anyhow, it was more "technology looking for a
home". And now they all but vanished, which isn't a surprise to me.

Vanished> RS still has them in stock!
By your owon definition, a part that lasts more than 40 years and it still available today.

I meant at reasonable cost. You honestly believe an engineer in his
right mind would design a mundane oscillator using a transistor that
But Joerg, you have seen only a small part of the world :)

A lot of it, actually. But I did make it into the 21st century and
TO-can parts don't belong there. For hobbyists they can be ok.

When I started out as an engineer in 1986 we already designed everything
in SMT. No dinosaur parts there.
That explains it., all teh part numbers were different, strange tube names,
of course you could not get those.,
Whats a DL92 in hw US? I would have to look it up.

I had no problems obtaining parts for ARRL projects. It was not rocket
science to find out the equivalent Valvo/Philips tubes. When I was
around 12 I invested in two very valuable (yet cheap) books: Tube and
transistor data and comparison tables from Franzis Verlag in Germany.

Occasionally it was necessary to recalculate a cathode resistor or
something. Many times I tried to get away with P-tubes since they could
be found in discraded TV sets. As in "free".
Dr Blan was a small magazine with all sots of kid electronics projects,
in the late fifties and early sixties.


In the late 50's I still wore diapers :)



We had similar stuff in Germany, the radio in the soap container and
stuff like that. I might still have mine somewhere. Mom was very miffed
when she found the soap container in my room and it already had holes in
it for the variable capacitor and the banana jacks.
 
J

josephkk

Jan 1, 1970
0
Very long time ago I tried installing open suse, or was it updating,
and it deleted all my binaries without warning.
Never been back.
Yes that root password thing I have noticed too in Ubuntu.
As I am always root I do not care too much.
Now I am root in Slackware.

Fear Of Being Root (FOBR) seems to be quiet common :)

Not being root is like driving your car from the right hand front seat
(for right handed traffic) and having to hop over to the other seat every time
time you want to brake of accelerate...
It may SEEM safer, but it is not.

Actually, popping to root via su - hardly bothers me. Of course if i had
spent the time to properly setup sudoers, i wouldn't even have to do that.

?-)
 
J

josephkk

Jan 1, 1970
0
Much of the time I'm logged in as a normal user in one virtual terminal,
for doing normal things, and as root in another, for when I need it.

I just switch with ctrl-alt-Fwhatever. I think you said that's broken on
your system.

The root password/sudo thing is what has always put me off Ubuntu. Being
able to get root privileges has saved the day for me on a number of
occasions.

And i really love being able to get into the machine from another via ssh.
It can be really handy when a desktop jams up.

?-)
 
J

josephkk

Jan 1, 1970
0
For security reasons, you don't want to be logged in as root all the time.

Opensuse is well known for working well next to windows, so I use it in
dual boot as well as the primary OS. I need to think if it ever wiped
out my binaries. I don't believe updates touch user/local/bin. If you
put a binary where the OS puts them, then I suspect all bets are off.
But that is a problem in many OSs, including windows. If the windows
program doesn't have an installer, I put the binary in a bin directory
which I have added to the path.

The real problem with opensuse is the library locations. I often find
myself having to set parameters so that libraries can be found, or
creating symbolic links to make them appear in the right place.

I've also found opensuse a bit buggy with gnome. It works fine with KDE.

Now is that gnome 2 or 3? Likewise KDE 3 or 4?

?-)
 
J

josephkk

Jan 1, 1970
0
After not doing any other audio CDs for a few years I may not remember
that. It has to be written down somewhere :)



For verifying I go downstairs where we have a really old CD player from
the early 90s that is quite fussy if it isn't exactly right.

For speed, this PC doesn't give me the option for DVDs but other SW does
(maybe it does for CDs, haven't tried yet), and I usually select 2x or 4x.



The OS does but I prefer not to use them.


I've done tons of data CD and every one worked fine. Recently I moved to
DVD because of data volume.



Why should I buy anything? Maybe a stash of blank CDs if I can't find
enough of them here. Most likely the Verbatim brand.
Get Fuji instead, better quality. Verbatim has been poor quality for
decades.
 
J

josephkk

Jan 1, 1970
0
The deal with command line and scripting is all the control data is
presented at once. With gui, you never know how the user will enter
data. It is a time sink to cover all bases.

Incidentally, the greatest command line program of all time is probably
dd. Very powerful, and in the wrong hands, very destructive.

No. It is either uucp or rsync, both far more valuable in the general
case and far less likely to be destructive if misused.

?-)
 
J

Joerg

Jan 1, 1970
0
josephkk said:
Jan Panteltje wrote:
[...]

Why should I buy anything? Maybe a stash of blank CDs if I can't find
enough of them here. Most likely the Verbatim brand.
Get Fuji instead, better quality. Verbatim has been poor quality for
decades.


Other than that, the stores in the area usually have Memorex. Where I
had not such great experience in the days of floppies. Are they better
with CDs then?

I don't really want to do a mail order just for one small spindle of CD
blanks.

[...]
 
J

Joerg

Jan 1, 1970
0
Joerg said:
josephkk said:
Jan Panteltje wrote:
[...]

Oh, and what make are you going to buy and why?

:)

Why should I buy anything? Maybe a stash of blank CDs if I can't find
enough of them here. Most likely the Verbatim brand.
Get Fuji instead, better quality. Verbatim has been poor quality for
decades.


Other than that, the stores in the area usually have Memorex. Where I
had not such great experience in the days of floppies. Are they better
with CDs then?

I don't really want to do a mail order just for one small spindle of CD
blanks.

Correction, just remembered that they built a new Walgreens out here.
Aat least according to their web site they have Maxell and Sony. I guess
those would be good brands.
 
J

Joerg

Jan 1, 1970
0
Joerg said:
Question to audio folks:

I am trying to transfer a memorial service to CD, for folks far away who
could not attend. Have the MP3 file, wanted to equalize the audio and
remove hum. All the effects options including "noise removal" are
grayed out. Looking on the web I found only hints that this can happen
if you have multiple installs and the config file is being screwed up
but I don't have that.

What gives?

Hurumph!

Now that all the editing works and I think I've got a decent audio
recording Audacity will not play through the PC sound system any longer.
No sound. All other audio sources such as Internet radio or my EMC radio
that goes through USB works just like usual. With Audacity I can see its
green VU meters wiggle happily but no output volume. Restarts and
switching to every conceivable device setting doesn't bring it back.

Any ideas?
 
J

Jasen Betts

Jan 1, 1970
0
josephkk said:
Jan Panteltje wrote:
[...]

Oh, and what make are you going to buy and why?

:)

Why should I buy anything? Maybe a stash of blank CDs if I can't find
enough of them here. Most likely the Verbatim brand.
Get Fuji instead, better quality. Verbatim has been poor quality for
decades.


Other than that, the stores in the area usually have Memorex. Where I
had not such great experience in the days of floppies. Are they better
with CDs then?

I don't really want to do a mail order just for one small spindle of CD
blanks.

CD-R CD-RW DVD etc, buy them at the supermarket, or from farnell, or
the office supplies place, next time you buy food, or parts, or paper.
 
J

Jasen Betts

Jan 1, 1970
0
Hurumph!

Now that all the editing works and I think I've got a decent audio
recording Audacity will not play through the PC sound system any longer.
No sound. All other audio sources such as Internet radio or my EMC radio
that goes through USB works just like usual. With Audacity I can see its
green VU meters wiggle happily but no output volume. Restarts and
switching to every conceivable device setting doesn't bring it back.

Any ideas?

open the sound card's mixer controls, check all the settings.

also, in audacity edit-prefernces-devices (they mave have moved that
in version 2)
 
J

Joerg

Jan 1, 1970
0
Jasen said:
open the sound card's mixer controls, check all the settings.

also, in audacity edit-prefernces-devices (they mave have moved that
in version 2)

Did all that, no dice :-(

Maybe it croaked and needs a re-install. Making audio CD's is clearly
not my favorite turf. Made a CD-RW yesterday and it will only play on
the living room stereo but not in the car. But the living room stereo
can't fats forward within a stretch that has no markers (like within a
song) while the car player can.
 
J

Joerg

Jan 1, 1970
0
Jasen said:
josephkk said:
Jan Panteltje wrote: [...]


Oh, and what make are you going to buy and why?

:)

Why should I buy anything? Maybe a stash of blank CDs if I can't find
enough of them here. Most likely the Verbatim brand.

Get Fuji instead, better quality. Verbatim has been poor quality for
decades.

Other than that, the stores in the area usually have Memorex. Where I
had not such great experience in the days of floppies. Are they better
with CDs then?

I don't really want to do a mail order just for one small spindle of CD
blanks.

CD-R CD-RW DVD etc, buy them at the supermarket, or from farnell, or
the office supplies place, next time you buy food, or parts, or paper.

I will next week when I get to Placerville. Got a few already. Thing is,
where we live buying horse feed, steer manure, saddles or cowboy hats is
easy. Tech stuff is not so easy, anything beyond a clock radio.
 
M

miso

Jan 1, 1970
0
Now is that gnome 2 or 3? Likewise KDE 3 or 4?

?-)

KDE4 is fine. I think I was having wifi trouble on gnome 3. If you are
going to have issues, it almost always comes down to some device that
uses a driver.
 
J

JW

Jan 1, 1970
0
Made a CD-RW yesterday and it will only play on
the living room stereo but not in the car.

The technology in car stereos always seem to lag behind what's available
for home use. It could be that your car stereo is not compatible with
CD-RW - mine isn't, and it's a 2007 model that plays MP3 format. Try using
CD-R instead, they're more reflective than CD-RW media.
 
J

josephkk

Jan 1, 1970
0
josephkk said:
Jan Panteltje wrote:
[...]

Oh, and what make are you going to buy and why?

:)

Why should I buy anything? Maybe a stash of blank CDs if I can't find
enough of them here. Most likely the Verbatim brand.
Get Fuji instead, better quality. Verbatim has been poor quality for
decades.


Other than that, the stores in the area usually have Memorex. Where I
had not such great experience in the days of floppies. Are they better
with CDs then?

I don't really want to do a mail order just for one small spindle of CD
blanks.

[...]

Somewhat.

?-)
 
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