[linux-audio-user] in tune - stupid thread --- OT how to tune a guitar

[John Check]

On Wednesday 22 December 2004 09:38 am, Maarten de Boer wrote:
> Another guitar-tuning trick: if you don't have a reference tone at hand
> (and if you don't have absolute hearing), but you do have a television,
> you can use the screen-frequency to tune your guitar.
>
> The television screen flickers at 50 hz (at least, in PAL countries).
> Look at your g-string with the tv screen as background (holding your
> guitar sideways), and tune it until the you see a static waveform
> (it's much like looking at an oscilloscope). A g is at 196 hz, so you
> will be 4 hz off.

I've noticed the effect, but never had an application. de Boer is dutch for 
"McGuyver" right? ;)

>
> With NTSC sets, I guess you could use the b which is at 123 hz, 3 hz
> above the 120 Hz flicker.
>

I used the ringtone composer on my cell phone to get an A yesterday.
It's square wavy, but works. If anybody else has a Nokia 3390  "6" = A.

> maarten