14 Nov 2022

Here’s an English translation of the on-screen Latvian instructions. Translation was worked out with Google Lens, Google Translate, and ChatGPT for a couple of the more confusing words. (The piece of wooden stick he used for the mouthpiece translated to ‘splinter’ and ‘dowel’. I just went with dowel.)

0:22 With a pencil, you need to mark the outline of the whistle, a square of 5×5 mm.

0:35 Mark the centers of 4 holes, with an interval of around 2.5 cm.

0:50 The walnut must be opened carefully, without damaging the shell.

1:20 The partitions should be cut out, the core of the nut should be removed and the inside of the shell should be cleaned.

1:45 A hole with a diameter of 4 mm should be drilled for the whistle.

1:55 Drill the side holes with a 1.5 mm drill bit.

2:20 The second hole can be enlarged to 2.5 mm, the fourth hole to 3.5 mm.

2:32 The whistle hole is widened with a file, grinding it into a square shape.

3:03 The whistle hole must be sharpened.

3:20 The mouthpiece can be made from a dry wooden dowel with a diameter around 10mm.

3:30 A hole with a diameter of 4mm will be drilled in it.

3:40 Cut a section 1 – 1.5 cm long

3:55 With a round file the mouthpiece must be ground inside.

4:07 To attach the mouthpiece, the edge must be cut diagonally.

4:35 The joint plane is sanded with sandpaper.

5:05 For the attachment of the mouthpiece, the connection plane is also formed in the upper part of the whistler.

5:53 Sand the edges of the mouthpiece.

6:10 Expand the air channel with a flat file.

6:48 The shells are glued together with moisture resistant glue.

7:33 The mouthpiece is glued to the whistle, precisely targeting the direction of the sharpened edge of the air channel.

8:12 The whistle is tuned by increasing the holes.

8:26 The fundamental tone can be raised by enlarging the whistle hole.

8:58 The tones of the whistler sound in sequence, comparing each next one with the previous sound.

9:15 Fine tuning takes time and patience.