ref: 580f6a42275dae8de4c1733780e8ab88935b4937
parent: 3a694fb7f3cd90ad8d2569db0c32fc5b9e0b684f
author: qwx <qwx@sciops.net>
date: Tue May 4 00:03:13 EDT 2021
opl2(1): minor adjustments
--- a/man/1/opl2
+++ b/man/1/opl2
@@ -17,12 +17,14 @@
The emulated chip is programmed by a stream of commands either from
.I file
or from standard in.
-Guided by these commands, it then synthesizes a number of 16 bit little-endian samples for
-the chip's output sampling rate, 49.716 kHz.
-Each is duplicated for stereo sound and written to standard out.
+It then synthesizes stereo 16-bit little-endian PCM samples
+at the chip's sampling rate, 49.716 kHz,
+resamples them to
+.IR audio (3)'s
+default 44.1 kHz rate,
+and writes them to standard out.
.PP
-Commands are 4 bytes formatted as follows,
-where the size of each field is given in bytes between brackets:
+Commands are 4 bytes wide, in little-endian byte order:
.PP
.RS
.IR register [1]
@@ -40,8 +42,7 @@
.PP
The
.I delay
-field is stored as a 16-bit unsigned integer in little-endian byte order,
-and provides timing.
+field provides timing.
It is a multiple of a command period, during which the
.SM OPL2
chip may be sampled before processing the next command.