User`s guide

Buffer
5-45
Nonzero Latency
Sample-Based Operation. For all cases of sample-based single-tasking operation
other than those listed above, the Buffer block’s buffer is initialized to the
value(s) specified by the
Initial conditions parameter, and the block reads
from this buffer to generate the first D output samples, where
If the
Buffer overlap, L, is zero, the Initial conditions parameter can be a
scalar to be repeated across the first M
o
output samples, or a length-M
o
vector
containing the values of the first M
o
output samples. For nonzero Buffer
overlap
, the Initial conditions parameter must be a scalar.
Frame-Based Operation. For frame-based single-tasking operation and all
multitasking operation, use the
rebuffer_delay function to compute the exact
delay (in samples) that the Buffer block introduces for a given combination of
buffer size and buffer overlap.
For general buffering between arbitrary frame sizes, the
Initial conditions
parameter must be a scalar value, which is then repeated across all elements
of the initial output(s). However, in the special case where the input is 1-by-N
(and the block’s output is therefore an M
o
-by-N matrix), Initial conditions can
be:
•An M
o
-by-N matrix
•A length-M
o
vector to be repeated across all columns of the initial output(s)
•A scalar to be repeated across all elements of the initial output(s)
In the special case where the output is 1-by-N (the result of unbuffering an
M
i
-by-N frame-based matrix), Initial conditions can be:
•A vector containing M
i
samples to output sequentially for each channel
during the first M
i
sample times
•A scalar to be repeated across all elements of the initial output(s)
D
M
o
L+ L 0≥()
M
o
L 0<()
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