Public bug reported:
Binary package hint: alsa-utils
The speaker-test utility in alsa-utils restricts the sine wave frequency
to 50-5000Hz.
Therefore:
> speaker-test -test sine -f 30
outputs a sine wave of 50Hz instead of the specified 30Hz.
While the author of the code introduced such restriction to prevent
people causing physical damage ( to their speakers or even themselves )
it restricts the users freedom and lowers the application of the utility
as a signal generator.
For example, while creating a sound system for a car, you may test the
speakers work at varying frequencies below 50Hz but would be unable to
do so with speaker-test.
I propose that a new switch is added to the program that is not affected by the
restriction ( or disables the restrictions ) and modify the description of the
existing switch. For example:
-f,--frequency sine wave frequency in Hz (50-5000). See
--force-frequency
--force-frequency forces the frequency even if outside the 50-5000Hz range
I may be able to provide a patch to do this but I have not programmed in
the speaker-test source language ( C? ) before so it would require some
scrutiny.
** Affects: alsa-utils (Ubuntu)
Importance: Undecided
Status: New
--
speaker-test: limited user freedom and utility
https://bugs.launchpad.net/bugs/321477
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