Professor Jamz audio credits

Original synthesized effects
48 effects use original numerical synthesis recipes created for Professor Jamz.
They contain no downloaded instrument recording, commercial-song excerpt,
celebrity likeness, cloned voice or external speech-generation output.
Some of the 8 recorded-voice options combine these original effects with
the cleared recordings below.

Kenney Voiceover Pack #1
Creator: Kenney Vleugels (Kenney.nl)
Male voice performer: Jeffrey M. Smith
Source page: https://kenney.nl/assets/voiceover-pack
Source archive:
https://kenney.nl/media/pages/assets/voiceover-pack/3f7f168698-1677589897/kenney_voiceover-pack.zip
Selected archive members:
  Male/ready.ogg -> voice-ready.wav
  Male/go.ogg -> voice-go.wav
  Male/3.ogg -> voice-three.wav
  Male/2.ogg -> voice-two.wav
  Male/1.ogg -> voice-one.wav
License: Creative Commons Zero 1.0 Universal (CC0-1.0)
https://creativecommons.org/publicdomain/zero/1.0/
Changes: original OGG files were converted to mono 44.1 kHz, 16-bit PCM
WAV. These five WAVs are included unchanged. Playback applies conservative gain, very short boundary
fades, and sequences/combinations as documented in the catalog. The renderer
uses the original speaking pitch and speed. No endorsement is implied.
Exact original supplied license and credits are retained under licenses/.
manifest.json includes original-source and packaged-WAV SHA-256 hashes.