render spectograms in jpeg or png

Audio software developers forum.

If you require help using Audacity, please post on the forum board relevant to your operating system:
Windows
Mac OS X
GNU/Linux and Unix-like

render spectograms in jpeg or png

Permanent link to this post Posted by mashka » Fri Jan 05, 2018 5:24 pm

Hello,

I would like to export a spectrogram as a jep or png. But not a screenshot?
Is there a way to do it through audacity?
Can you pliz help on this?

Thanks!
mashka
 
Posts: 2
Joined: Fri Jan 05, 2018 5:13 pm
Operating System: Windows 7

Re: render spectograms in jpeg or png

Permanent link to this post Posted by kozikowski » Fri Jan 05, 2018 5:51 pm

Not through Audacity.

Windows 7 has a Snipping Tool program that will allow you to either shoot the whole screen or draw a box around your area of interest. That's how I got this picture of the Control Panel (click the graphic).

Win7SoundPanel.PNG
Win7SoundPanel.PNG (36.27 KiB) Viewed 322 times


Koz
kozikowski
Forum Staff
 
Posts: 38781
Joined: Thu Aug 02, 2007 5:57 pm
Location: Los Angeles
Operating System: OS X 10.9 Mavericks

Re: render spectograms in jpeg or png

Permanent link to this post Posted by kozikowski » Fri Jan 05, 2018 8:30 pm

Audacity has had screenshot tools for a few years now

The things you learn on the forum.

Koz
kozikowski
Forum Staff
 
Posts: 38781
Joined: Thu Aug 02, 2007 5:57 pm
Location: Los Angeles
Operating System: OS X 10.9 Mavericks

Re: render spectograms in jpeg or png

Permanent link to this post Posted by kozikowski » Fri Jan 05, 2018 9:49 pm

I wonder where the other posting went. Twilight Zone Moment.

Audacity capture tools:

Help > Tools.

I'm doing this in Audacity 2.2.1.

Koz
kozikowski
Forum Staff
 
Posts: 38781
Joined: Thu Aug 02, 2007 5:57 pm
Location: Los Angeles
Operating System: OS X 10.9 Mavericks

Re: render spectograms in jpeg or png

Permanent link to this post Posted by kozikowski » Fri Jan 05, 2018 9:56 pm

PNG is a loss-less format. JPEG is lossy. It throws away some picture information to get small files.

For one simple example, If you have a sky all the same color blue, you only need three digital numbers. Which blue, upper left and lower right locations. That's a stunning reduction in data. Lossy compression means you can guess at some of the blues. There's other tricks, too.

The problem comes if you need to do production with JPEG files. You should remember even though they look cool, they're actually damaged.

Koz
kozikowski
Forum Staff
 
Posts: 38781
Joined: Thu Aug 02, 2007 5:57 pm
Location: Los Angeles
Operating System: OS X 10.9 Mavericks

Re: render spectograms in jpeg or png

Permanent link to this post Posted by mashka » Tue Jan 09, 2018 1:25 pm

Thank you for the help!
mashka
 
Posts: 2
Joined: Fri Jan 05, 2018 5:13 pm
Operating System: Windows 7


Return to General Audio Programming



Who is online

Users browsing this forum: No registered users and 2 guests