updated music mask

[qmk_firmware.git] / docs / feature_audio.md

diff --git a/docs/feature_audio.md b/docs/feature_audio.md
index 5b11aa3abacf32bd1da7962b4e35bd2b1ded0bad..50e389605c1b90da8d3f336eda80b0979c70d327 100644 (file)
--- a/docs/feature_audio.md
+++ b/docs/feature_audio.md
@@ -1,6 +1,17 @@
 # Audio
 
-Your keyboard can make sounds! If you've got a Planck, Preonic, or basically any AVR keyboard that allows access to the C6 or B5 port (`#define C6_AUDIO` and/or `#define B5_AUDIO`), you can hook up a simple speaker and make it beep. You can use those beeps to indicate layer transitions, modifiers, special keys, or just to play some funky 8bit tunes.
+Your keyboard can make sounds! If you've got a Planck, Preonic, or basically any AVR keyboard that allows access to certain PWM-capable pins, you can hook up a simple speaker and make it beep. You can use those beeps to indicate layer transitions, modifiers, special keys, or just to play some funky 8bit tunes.
+
+Up to two simultaneous audio voices are supported, one driven by timer 1 and another driven by timer 3.  The following pins can be defined as audio outputs in config.h:
+Timer 1:
+`#define B5_AUDIO`
+`#define B6_AUDIO`
+`#define B7_AUDIO`
+
+Timer 3:
+`#define C4_AUDIO`
+`#define C5_AUDIO`
+`#define C6_AUDIO`
 
 If you add `AUDIO_ENABLE = yes` to your `rules.mk`, there's a couple different sounds that will automatically be enabled without any other configuration:
 
@@ -78,6 +89,20 @@ By default, `MUSIC_MASK` is set to `keycode < 0xFF` which means keycodes less th
 
 Which will capture all keycodes - be careful, this will get you stuck in music mode until you restart your keyboard!
 
+For a more advanced way to control which keycodes should still be processed, you can use `music_mask_kb(keycode)` in `<keyboard>.c` and `music_mask_user(keycode)` in your `keymap.c`:
+
+    bool music_mask_user(uint16_t keycode) {
+      switch (keycode) {
+        case RAISE:
+        case LOWER:
+          return false;
+        default:
+          return true;
+      }
+    }
+
+Things that return false are not part of the mask, and are always processed.
+
 The pitch standard (`PITCH_STANDARD_A`) is 440.0f by default - to change this, add something like this to your `config.h`:
 
     #define PITCH_STANDARD_A 432.0f
@@ -86,6 +111,36 @@ You can completely disable Music Mode as well. This is useful, if you're pressed
 
     #define NO_MUSIC_MODE
 
+## Faux Click
+
+This adds a click sound each time you hit a button, to simulate click sounds from the keyboard. And the sounds are slightly different for each keypress, so it doesn't sound like a single long note, if you type rapidly. 
+
+* `CK_TOGG` - Toggles the status (will play sound if enabled)
+* `CK_RST` - Resets the frequency to the default state 
+* `CK_UP` - Increases the frequency of the clicks
+* `CK_DOWN` - Decreases the frequency of the clicks
+
+The feature is disabled by default, to save space.  To enable it, add this to your `config.h`:
+
+    #define AUDIO_CLICKY
+
+Additionally, even when enabled, the feature is not enabled by default, so you would need to turn it on first.  And since we don't use EEPROM to store the setting (yet), you can default this to on by adding this to your `config.h`:
+
+    #define AUDIO_CLICKY_ON
+
+You can configure the default, min and max frequencies, the stepping and built in randomness by defining these values: 
+
+| Option | Default Value | Description |
+|--------|---------------|-------------|
+| `AUDIO_CLICKY_FREQ_DEFAULT` | 440.0f | Sets the default/starting audio frequency for the clicky sounds. |
+| `AUDIO_CLICKY_FREQ_MIN` | 65.0f | Sets the lowest frequency (under 60f are a bit buggy). |
+| `AUDIO_CLICKY_FREQ_MAX` | 1500.0f | Sets the the highest frequency. Too high may result in coworkers attacking you. |
+| `AUDIO_CLICKY_FREQ_FACTOR` | 1.18921f| Sets the stepping of UP/DOWN key codes. |
+| `AUDIO_CLICKY_FREQ_RANDOMNESS`     |  0.05f |  Sets a factor of randomness for the clicks, Setting this to `0f` will make each click identical. | 
+
+
+
+
 ## MIDI Functionality
 
 This is still a WIP, but check out `quantum/keymap_midi.c` to see what's happening. Enable from the Makefile.