Name

       bsvplay — convert BASICA music files to PCM

Syntax

       bsvplay [-i part] [-q part] [-r rate] [file...] | aplay -f dat -c 1

Description

       bsvplay  will  convert BASICA binary music files to linear 16-bit raw PCM.  Normally, you will be wanting
       to pipe it into a raw PCM player like aplay(1) to actually output it to a sound device. Be sure to  lower
       the  volume beforehand to avoid nasty surprises that come with square waves. By default, bsvplay will mix
       1:1 square:sine waves to give a medium tone hardness.

Options

       -q part
              Part to mix square waves in (default: 1.0)

       -i part
              Part to mix sine waves in (default: 1.0). If -q2 -i1 is  specified  for  example,  the  final  PCM
              output will consist of 2/3*squarepcm + 1/3*sinpcm.

       -r rate
              PCM sample rate (default: 48000 Hz)

File format

       The BASICA format is defined 6-byte tuples of divisor, duration and pause.

            struct bsv_insn {
                 uint16_t divisor;
                 uint16_t duration; /* in ticks */
                 uint16_t af_pause; /* in ticks */
            };

       where  divisor  specifies  the divisor value that it directly handed to the x86 PC speaker. The following
       formula holds:

            frequency = 1193181 / divisor;

See also

       aplay(1), qplay(1), hxtools(7)