Make a Talking Clock

Step 3 Recording Your Voice

Let's start by capturing your voice samples.  If you'd rather skip this, you can use the samples I made (download here).

Audacity is a great program for recording audio.  You can download Audacity here.  When using Audacity, be sure to set the track properties to 16-bit PCM, 16khz rate.  Mono is fine, stereo will work, but I only hooked up a single speaker (and why does your clock need to be in stereo?). 

Each number gets it's own wav. file.  You'll need the following samples:

Numbers

• 00.wav
• 01.wav
• 02.wav
• 03.wav
• 04.wav
• 05.wav
• 06.wav
• 07.wav
• 08.wav
• 09.wav
• 11.wav
• 12.wav
• 13.wav
• 14.wav
• 15.wav
• 16.wav
• 17.wav
• 18.wav
• 19.wav
• 20.wav
• 30.wav
• 40.wav
• 50.wav

words

• am.wav
• pm.wav
• geve.wav (good evening)
• morn.wav (good morning)
• anoon.wav (good afternoon)
• and.wav (and)
• oclock.wav (O'Clock)
• secs.wav (seconds)
• exact.wav (exactly)
• beep.wav, a beep sound
• standard.wav (Pacific standard time will be)
• dlight.wav (Pacific daylight time will be)

Record each of them as separate files and save to the root directory on your SD card.  I recorded all of them as a single wave, then chopped them up into separate files.  It seemed easier to control the volume levels that way.

Also, if you have a laptop, you'll get better results using an external microphone.  Depending on your laptop, you might get some hiss or buzz.