Looking for a app similar to the Dog Whistle for the iPhone

[Stuart Pullinger]

Adam Jimerson wrote:
> I mean like playing a tone, the same tone, but at different pitch like
> 67Hz as an example
>
It can be done from the command-line with gstreamer:

gst-launch audiotestsrc freq=67 volume=0.8 ! alsasink

(It's very quiet!)

You may have to install a few extra packages via opkg eg:

opkg install gst-plugin-audiotestsrc
on shr-testing or using the direct address:
http://build.shr-project.org/shr-testing/ipk/armv4t/gst-plugin-audiotestsrc_0.10.17-r5_armv4t.ipk

Use:
gst-inspect audiotestsrc
fo more info.

Stuart