mix

Documentation

Overview

Package mix is used to combine two distinct sound sources into either a mono or stereo signal.

The mono mix is created according to the information in the document, "TIA Sounding Off In The Digital Domain", by Chris Brenner. Announcment link below:

https://atariage.com/forums/topic/249865-tia-sounding-off-in-the-digital-domain/

The exact implementation here is an optimisation of that work, as found by Thomas Jzentsh (as mentioned in the link above)

Both 6502.ts and Stella source was used as reference. Both projects are exactly equivalent.

  6502.ts (published under the MIT licence)
		https://github.com/6502ts/6502.ts/blob/6f923e5fe693b82a2448ffac1f85aea9693cacff/src/machine/stella/tia/PCMAudio.ts
		https://github.com/6502ts/6502.ts/blob/6f923e5fe693b82a2448ffac1f85aea9693cacff/src/machine/stella/tia/PCMChannel.ts

 Stella (published under the GNU GPL v2.0 licence)
		https://github.com/stella-emu/stella/blob/e6af23d6c12893dd17711002971087f28f87c31f/src/emucore/tia/Audio.cxx
		https://github.com/stella-emu/stella/blob/e6af23d6c12893dd17711002971087f28f87c31f/src/emucore/tia/AudioChannel.cxx

Index

• func Mono(channel0 uint8, channel1 uint8) int16
• func Stereo(channel0 uint8, channel1 uint8, separation int) (int16, int16)

Functions

func Mono

func Mono(channel0 uint8, channel1 uint8) int16

Mono returns a single volume value.

func Stereo

func Stereo(channel0 uint8, channel1 uint8, separation int) (int16, int16)

Stereo return a pair of volume values.

A sensible range for the Separation value is 0 to 3. A value of 0 is the more-or-less the same as Mono().