The storage space taken up by an uncompressed, full-spectrum audio recording is a product of four factors:

1. The length of the recording, in seconds
2. The sample rate of the recording, in samples per second or Hertz
3. The bit depth of the recording, in bits per sample
4. The number of recording channels

All of our recorders produce .wav files with a 16-bit depth, except for our marine units, which can optionally be configured to record with a 32-bit depth. The sample rate of our recorders is user-configurable.

You can use our free Song Meter Configurator software to estimate when SD cards of any size will fill up based on your recording schedule and audio settings. You will need to log in to your Wildlife Acoustics account or create a free account, select the recorder, and look for the configurator download. Note that Song Meter Mini and Song Meter Micro can be configured via their mobile apps.

• Why can't I use an adapter to connect a USB-C Echo Meter Touch to my Lightning iOS device?
• What type of plug does my Echo Meter Touch module have?
• What iOS devices are compatible with my Echo Meter Touch module?
• What type of data port does my phone or tablet have?
• Can I use Echo Meter Touch modules with USB connectors with iOS devices?
• What adapter do I need for my Echo Meter Touch module and Android or iOS device?
• How do I update the firmware on my Echo Meter Touch module with USB to add iOS compatibility?
• Are there acoustic differences between the first- and second-generation Mini Bat recorders?
• Will the Lithium-ion lids I used with first-generation Minis fit the new models?
• Will the security bracket accessory I use with first-generation Minis be compatible with the new models?
• Will Wildlife Acoustics continue to repair and support first-generation Minis with replacement parts?
• Are there size differences between the first- and second-generation Minis?
• View more questions