4 Feb
2022
4 Feb
'22
12:03 p.m.
On Fri, Feb 04, 2022 at 10:49:59AM +0100, Peter wrote:
Dear All,
inspired by the "A History of Audio on Linux somewhere?" I took a look at my
very old Linux Audio projects.
I have one which amazingly still compiles, namely FeigenSound from the Linux Magazin
03/2001,
however I can't hear the output, even when the pcspkr module is loaded.
I assume that todays Laptops just don't have speaker anymore.
There I was using the KbdCtl.bell_* to generate tones with a given frequency and
duration:
// switch to new state
KbdCtl.bell_percent = 100;
KbdCtl.bell_pitch = Frequency;
KbdCtl.bell_duration = Duration;
XChangeKeyboardControl(pDisplay, KBBellPercent | KBBellPitch | KBBellDuration,
&KbdCtl);
Is there still such a simple method available to generate a tone with a given duration
and frequency.
Of course I could generate a corresponding array and send it to jackd, I'm just
looking for something simple.
1200Hz for 10s
ecasound -i:tone,sine,1200,10 -o:jack,system
Best regards,
Peter
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Joel Roth