audio.gain | LuaRT free and open source Windows programming framework for Lua

audio.gain read/write property

Get or set the master gain, the global loudness of sounds in decibels. This property provides global amplification of sounds.

This property default value is set to 0.0. Positive values will amplify sounds, while negative values will quieten sounds.

Example


local audio = require "audio"
local console = require "console"

print("Playing some music")
print("Press UP and DOWN arrow keys to change gain")
print("Press SPACE to exit")
-- Play some music
audio.play("music.mp3")

while true do 
    local c, special = console.readchar()
    if special == true then
        if c == "H" then        -- UP key have been pressed
            audio.gain = audio.gain + 1
            print("Audio gain set to "..audio.gain)
        elseif c == "J" then    -- DOWN key have been pressed
            audio.gain = audio.gain - 1
            print("Audio gain set to "..audio.gain)
        end
    elseif c == " " then        -- SPACE key have been pressed
        print("Stop playing...")
        break
    end
end