Update RELEASENOTES-DEVELOPMENT.md

Add note about the `dasl-tapered` volume control profile

diff --git a/RELEASENOTES-DEVELOPMENT.md b/RELEASENOTES-DEVELOPMENT.md
index 5a9cb9c8823952a0e655f36959c82047fb57bb57..670c9670448bea4387ad24d5410fd4fd8bfd5c8c 100644 (file)
--- a/RELEASENOTES-DEVELOPMENT.md
+++ b/RELEASENOTES-DEVELOPMENT.md
@@ -1,3 +1,10 @@
+Version 4.2.1d0-46-g57061dfb
+====
+**Enhancement**
+* Add a new volume-control profile called `dasl-tapered`. Shairport Sync already has two volume control profiles -- the `standard` profile -- which is the default -- and a `flat profile. A feature of the `dasl-tapered` profile is that halving the volume control setting (e.g. moving the volume slider from full to half, or from half to a quarter) reduces the output level by 10dB, which roughly corresponds with a perceived halving of the audio volume level. Many thanks to David Leibovic, aka [dasl-](https://github.com/dasl-) for this.
+To activate the `dasl-tapered` profile, set the `volume_control_profile` to `"dasl_tapered"` in the configuration file and restart Shairport Sync.
+There may be some more minor adjustments to this profile for devices with a restricted attenuation range...
+
 Version 4.2.1d0-40-g9ef4e351
 ====
 **Bug Fix**