<div dir="ltr">I always use cosine waves because they have more brilliance than sine waves. Something to do with the phase shift I think.<div><br></div><div>--Tim "Sir Snarks alot" Ressel</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Thu, Dec 19, 2024 at 5:17 AM The SynthiMuse via Synth-diy <<a href="mailto:synth-diy@synth-diy.org">synth-diy@synth-diy.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto">As a controlled experiment to prove absolutely if there was any difference between saw and ramp, I used a signal generator on my phone ( Samsung A15 ) to generate a 441Hz saw.<div dir="auto">I positioned myself exactly 1 metre away from the sound source and listened *very* carefully for 10 minutes.</div><div dir="auto"><br></div><div dir="auto">I then suspended myself hanging from a bar by the knees. I checked using a little plastic protractor that i was exactly 180 degrees inverted. </div><div dir="auto">I needed to hang there for about 15 minutes with my eyes closed to overcome the disorientation. </div><div dir="auto">Around the 10 minute mark, I'd lost feeling in my lower legs but the discomfort was worth it to advance the science. Did Newton complain about a bruised forehead? I don't think so.</div><div dir="auto"><br></div><div dir="auto">Finally, I was able to concentrate on listening to the 441 Hz saw which, by inversion, is now obviously a ramp.</div><div dir="auto"><br></div><div dir="auto">I can now give an absolute, definitive answer to the the discussion and it is as follows:</div><div dir="auto"><br></div><div dir="auto">"Yea, they're about the same"</div><div dir="auto"><br></div><div dir="auto">You're welcome.</div><div dir="auto"><br></div><div dir="auto">Gerry</div><div dir="auto">😀</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, 19 Dec 2024, 09:38 Richie Burnett, <<a href="mailto:rburnett@richieburnett.co.uk" target="_blank">rburnett@richieburnett.co.uk</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">MR wrote:<br>
<br>
> ....Also the triangle has its overtones in other phases than the square <br>
> for instance, so there's no way of phase-aligning<br>
> all the traditional waveforms saw/sqr/tri/sin and get all their overtone <br>
> phases to match. But the triangle becomes a nice<br>
> almost-half-circular waveform if you align them!<br>
<br>
It looks pretty much like a sinewave, but still has all the harmonics and <br>
the timbre of a triangle. That's pretty cool. Another example of <br>
substantially different looking waveforms with the same sound. Also goes to <br>
show that what initially *looks* like a decent sinewave can actually have <br>
quite high distortion!<br>
<br>
-Richie,<br>
<br>
<br>
<br>
-----Original Message----- <br>
From: Mattias Rickardsson<br>
Sent: Thursday, December 19, 2024 8:04 AM<br>
To: Donald Tillman<br>
Cc: SDIY List<br>
Subject: Re: [sdiy] saw vs ramp, audible?<br>
<br>
<br>
....Also the triangle has its overtones in other phases than the square for <br>
instance, so there's no way of phase-aligning all the traditional waveforms <br>
saw/sqr/tri/sin and get all their overtone phases to match. But the triangle <br>
becomes a nice almost-half-circular waveform if you align them!<br>
<br>
/mr<br>
<br>
<br>
<br>
<br>
<br>
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