update settings.md

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tildearrow 2023-09-01 16:43:08 -05:00
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@ -66,17 +66,31 @@ settings are saved when clicking the **OK** or **Apply** buttons at the bottom o
### Output
- **Backend**: selects SDL or JACK for audio output.
- only appears on Linux, or MacOS compiled with JACK support
- **Driver**: select a different SDL audio driver if you're having problems with the default one.
- **Backend**: selects a different backend for audio output.
- SDL: the default one.
- JACK: the JACK Audio Connection Kit (low-latency audio server). only appears on Linux, or MacOS compiled with JACK support.
- PortAudio: this may or may not perform better than the SDL backend.
- **Driver**: select a different audio driver if you're having problems with the default one.
- only appears when Backend is SDL.
- **Device**: audio device for playback.
- **Sample rate**
- if using PortAudio backend, devices will be prefixed with the audio API that PortAudio is going to use:
- Windows WASAPI: a modern audio API available on Windows Vista and later, featuring an (optional) Exclusive Mode. be noted that your buffer size setting may be ignored.
- Windows WDM-KS: low-latency, direct to hardware output mechanism. may not work all the time and prevents your audio device from being used for anything else!
- Windows DirectSound: this is the worst choice. best to move on.
- MME: an old audio API. doesn't have Exclusive Mode.
- Core Audio: the only choice in macOS.
- ALSA: low-level audio output on Linux. may prevent other applications from using your audio device.
- **Sample rate**: audio output rate.
- a lower rate decreases quality and isn't really beneficial.
- if using PortAudio backend, be careful about this value.
- **Outputs**: number of audio outputs created, up to 16.
- only appears when Backend is JACK.
- **Channels**: number of output channels to use.
- **Channels**: mono, stereo or something.
- **Buffer size**: size of buffer in both samples and milliseconds.
- setting this to a low value may cause stuttering/glitches in playback (known as "underruns" or "xruns").
- setting this to a high value increases latency.
- **Exclusive mode**: enables Exclusive Mode, which may offer latency improvements.
- only available on WASAPI devices in the PortAudio backend!
- **Low-latency mode (experimental!)**: reduces latency by running the engine faster than the tick rate. useful for live playback/jam mode.
- only enable if your buffer size is small (10ms or less).
- **Force mono audio**: use if you're unable to hear stereo audio (e.g. single speaker or hearing loss in one ear).
@ -88,6 +102,7 @@ settings are saved when clicking the **OK** or **Apply** buttons at the bottom o
- **Quality**: selects quality of resampling. low quality reduces CPU load by a small amount.
- **Software clipping**: clips output to nominal range (-1.0 to 1.0) before passing it to the audio device.
- this avoids activating Windows' built-in limiter.
- this option shall be enabled when using PortAudio backend with a DirectSound device.
### Metronome