Canon PowerShot A540 User Manual page 242

Add an Original Sound File
Change the file to a WAV sound file after you have copied the sound file to the computer.
Then proceed with the steps as described in
Create an Original Start-up Image File and then
Add It.
• Use settings like those below when creating an image file for the start-
up image with an image editing program.
Compression Method : JPEG (Baseline JPEG)
Data Sampling : 4:2:0 or 4:2:2
Pixels (w x h) : 320 x 240 pixels
• Use settings like those below when creating a sound file with a sound
recording program.
Compression Method : WAV (Monaural)
Quantifying Bits : 8 bit
Sampling Frequency : 11.025 kHz or 8.000 kHz
Use the following lengths as guidelines for the length of sound file that
can be saved to the camera.
Duration in Seconds
Type
11.025 kHz 8.000 kHz
Start-Up Sound 1.0 sec. or less 1.2 sec. or less
Shutter Sound
0.3 sec. or less 0.4 sec. or less
Operation Sound
0.3 sec. or less 0.4 sec. or less
Self-Timer Sound 2.0 sec. or less 2.0 sec. or less