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34 lines
948 B
Lua
34 lines
948 B
Lua
local bench = script and require(script.Parent.bench_support) or require("bench_support")
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local samples = 100_000
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-- create two 16-bit stereo pcm audio buffers
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local ch1 = buffer.create(samples * 2 * 2)
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local ch2 = buffer.create(samples * 2 * 2)
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-- just init with random data
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for i = 0, samples * 2 - 1 do
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buffer.writei16(ch1, i * 2, math.random(-32768, 32767))
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buffer.writei16(ch2, i * 2, math.random(-32768, 32767))
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end
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function test()
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local mix = buffer.create(samples * 2 * 2)
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for i = 0, samples - 1 do
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local s1l = buffer.readi16(ch1, i * 4)
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local s1r = buffer.readi16(ch1, i * 4 + 2)
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local s2l = buffer.readi16(ch2, i * 4)
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local s2r = buffer.readi16(ch2, i * 4 + 2)
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local combinedl = s1l + s2l - s1l * s2l / 32768
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local combinedr = s1r + s2r - s1r * s2r / 32768
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buffer.writei16(mix, i * 4, combinedl)
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buffer.writei16(mix, i * 4 + 2, combinedr)
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end
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end
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bench.runCode(test, "pcmmix")
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