Specify number of bits sound card uses to represent samples
Note: You cannot use the legacy interface on 64-bit MATLAB®. See About the Session-Based Interface to acquire and generate data on a 64-bit MATLAB.
BitsPerSample can be
or any value between
The specified number of bits determines the number of unique values
a sample can take on. For example, if
the sound card represents each sample with 8 bits. This means that
each sample is represented by a number from 0 through 255. If
the sound card represents each sample with 16 bits. This means that
each sample is represented by a number from 0 through 65,535.
For older Sound Blaster cards configured for full duplex operation,
you might not be able to set
BitsPerSample to 16
bits for both the analog input and analog output subsystems. Instead,
you need to set one subsystem for 8 bits, and the other subsystem
for 16 bits.
To use the high-resolution (greater than 16 bit) capabilities
for some sound cards, you might need to configure
AI, AO, common to all channels
Read-only when running
Represent data with the specified number of bits.