[sdiy] saw vs ramp, audible? Scientific proof!

[Brother Theo]

I always use cosine waves because they have more brilliance than sine
waves. Something to do with the phase shift I think.

--Tim "Sir Snarks alot" Ressel

On Thu, Dec 19, 2024 at 5:17 AM The SynthiMuse via Synth-diy <
synth-diy at synth-diy.org> wrote:

> 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.
> I positioned myself exactly 1 metre away from the sound source and
> listened *very* carefully for 10 minutes.
>
> 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.
> I needed to hang there for about 15 minutes with my eyes closed to
> overcome the disorientation.
> 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.
>
> Finally, I was able to concentrate on listening to the 441 Hz saw which,
> by inversion, is now obviously a ramp.
>
> I can now give an absolute, definitive answer to the the discussion and it
> is as follows:
>
> "Yea, they're about the same"
>
> You're welcome.
>
> Gerry
> 😀
>
> On Thu, 19 Dec 2024, 09:38 Richie Burnett, <rburnett at richieburnett.co.uk>
> wrote:
>
>> MR wrote:
>>
>> > ....Also the triangle has its overtones in other phases than the square
>> > for instance, so there's no way of phase-aligning
>> > all the traditional waveforms saw/sqr/tri/sin and get all their
>> overtone
>> > phases to match. But the triangle becomes a nice
>> > almost-half-circular waveform if you align them!
>>
>> It looks pretty much like a sinewave, but still has all the harmonics and
>> the timbre of a triangle.  That's pretty cool.  Another example of
>> substantially different looking waveforms with the same sound.  Also goes
>> to
>> show that what initially *looks* like a decent sinewave can actually have
>> quite high distortion!
>>
>> -Richie,
>>
>>
>>
>> -----Original Message-----
>> From: Mattias Rickardsson
>> Sent: Thursday, December 19, 2024 8:04 AM
>> To: Donald Tillman
>> Cc: SDIY List
>> Subject: Re: [sdiy] saw vs ramp, audible?
>>
>>
>> ....Also the triangle has its overtones in other phases than the square
>> for
>> instance, so there's no way of phase-aligning all the traditional
>> waveforms
>> saw/sqr/tri/sin and get all their overtone phases to match. But the
>> triangle
>> becomes a nice almost-half-circular waveform if you align them!
>>
>> /mr
>>
>>
>>
>>
>>
>> ________________________________________________________
>> This is the Synth-diy mailing list
>> Submit email to: Synth-diy at synth-diy.org
>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>> Selling or trading? Use marketplace at synth-diy.org
>>
>>
>> --
>> This email has been checked for viruses by AVG antivirus software.
>> www.avg.com
>> ________________________________________________________
>> This is the Synth-diy mailing list
>> Submit email to: Synth-diy at synth-diy.org
>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>> Selling or trading? Use marketplace at synth-diy.org
>>
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://synth-diy.org/pipermail/synth-diy/attachments/20241220/eab83e14/attachment.htm>