Combine up to 4 audio signals together, each with adjustable gain. All channels support signal attenuation or amplification.
| Port | Purpose |
|---|---|
| In 0 | Input signal #1 |
| In 1 | Input signal #2 |
| In 2 | Input signal #3 |
| In 3 | Input signal #4 |
| Out 0 | Sum of all inputs |
gain(channel, level);
Adjust the amplification or attenuation. "channel" must be 0 to 3. "level" may be any floating point number from 0 to 32767. 1.0 passes the signal through directly. Level of 0 shuts the channel off completely. Between 0 to 1.0 attenuates the signal, and above 1.0 amplifies it. All 4 channels have separate settings.
File > Examples > Audio > SamplePlayer
File > Examples > Audio > Synthesis > PlaySynthMusic
File > Examples > Audio > Analysis > SpectrumAnalyzerBasic
File > Examples > Audio > Analysis > DialTone_Serial
File > Examples > Audio > MemoryAndCpuUsage
Signal clipping can occur when any channel has gain greater than 1.0, or when multiple signals add together to greater than 1.0.
More than 4 channels may be combined by connecting multiple mixers in tandem. For example, a 16 channel mixer may be built using 5 mixers, where the fifth mixer combines the outputs of the first 4.