[audacity4blind] Re: Tone Generator

  • From: "Annabelle Susan Morison" <foristnights@xxxxxxxxxxx>
  • To: <audacity4blind@xxxxxxxxxxxxx>
  • Date: Tue, 28 Apr 2015 17:55:15 -0700

In this Prompt generator, what are all the edit fields? Or is there just one
edit field?

-----Original Message-----
From: audacity4blind-bounce@xxxxxxxxxxxxx
[mailto:audacity4blind-bounce@xxxxxxxxxxxxx] On Behalf Of Steve the Fiddle
Sent: Tuesday, April 28, 2015 5:01 PM
To: audacity4blind@xxxxxxxxxxxxx
Subject: [audacity4blind] Re: Tone Generator

No the built-in generator does not do triangle tones, but you can
generate triangle tones using the Nyquist Prompt effect.

If you select part of a track, open the Nyquist Prompt effect, and
enter the following command (note that the parentheses are essential),
it will generate a 0 dB (full scale) triangle tone in the selection at
440 Hz. Here is the code:
(osc-tri 440)

For a different frequency, just change the 440 to whatever frequency
you require.
To create a tone at lower amplitude, you can either, apply the Amplify
effect to the generated tone, with a negative amplification amount, or
you can extend the code a little. For example, to create a 1000 Hz
triangle tone with an amplitude of -6 dB (which is half of the full
scale amplitude) - the code is:

(mult 0.5 (osc-tri 1000))

Steve

On 28 April 2015 at 23:24, Annabelle Susan Morison
<foristnights@xxxxxxxxxxx> wrote:

Hi, it's Annabelle.
I know the tone generator within Audacity can generate sine, square,
sawtooth, and square no alias tones, but I wonder if it's possible that this
generator can generate triangle tones.

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