Defines starting with `n' in src

• NA src/s_sound.c:82
• NF_SUBSECTOR src/doomdata.h:178
• NORM_PITCH src/s_sound.c:72
• NORM_PRIORITY src/s_sound.c:73
• NORM_SEP src/s_sound.c:74
• NORM_VOLUME src/s_sound.c:70
• NOTMUSFILE src/qmus2mid.h:9
• NUM_CHANNELS src/i_sound.c:131
• NUMCHEATPLYRLINES src/am_map.c:195
• NUM_DSBUFFERS src/s_sound.c:85
• NUMKEYS src/g_game.c:212
• NUMPLYRLINES src/am_map.c:173
• NUMTHINTRIANGLEGUYLINES src/am_map.c:213
• NUMTRIANGLEGUYLINES src/am_map.c:204