Hi everybody! I thought such a thread already existed, but the search for similar threads gave no results.
Ok, I was looking for a simple software that can generate sine waves with the desired frequency, using the PC's sound card, but I couldn't find any.
For example, audacity does have such a tone generator, but is not what I want. I could use it, but it's too complicated and missing features I need: you have to generate the desired tone for a specified lenght in a file and then play it. I would like something more simple, with continuous play, start / stop, and maybe the posibility to change the frequency while playing.
Anyone know something like that?
For linux, ofcourse!
Thank you.

This might be OK: sox. Scroll down the man page to the synth option.

http://sox.sourceforge.net/

ma page:
http://sox.sourceforge.net/sox.html

Should be a package for OpenSuse.

Any synthesizer software should be able to do that. I am not into music production, but possibly this helps: http://www.linuxlinks.com/article/20...thesizers.html

Thanks for the replys, but those are all music tools.
After some more ixquickin' I found this thread http://stackoverflow.com/questions/5...inus-generator, and I tested some of those things.
The siggen program seems too old, I couldn't compile it on my machine, but what really works and I like is the Pulse Audio daemon, for the terminal.
I start it with "pacmd", and it has all I need, including good help. Simple, built-in and nothing extra to install. I start the sine-wave with "load-module module-sine frequency=xxxx" and stop it with "unload-module module-sine". And it has some extra options too. Nice!