fuzep_new_vol.diff

diff --git a/firmware/target/arm/imx233/audioout-imx233.c b/firmware/target/arm/imx233/audioout-imx233.c
index e9b368c..c25a7ec 100644
--- a/firmware/target/arm/imx233/audioout-imx233.c
+++ b/firmware/target/arm/imx233/audioout-imx233.c
@@ -152,9 +152,12 @@ static void apply_volume(void)
     else
     {
         /* In DAC mode we can use both the HP and the DAC volume.
-         * Use the DAC for volume <0 and HP for volume >0 */
+         * Always use the lowest possible HP volume to minimise noise:
+         * minimum is -57.5dB */
+        set_hp_vol(MAX(-115, hp_vol_l), MAX(-115, hp_vol_r));
+        hp_vol_l -= MAX(-115, hp_vol_l);
+        hp_vol_r -= MAX(-115, hp_vol_r);
         set_dac_vol(MIN(0, hp_vol_l), MIN(0, hp_vol_r));
-        set_hp_vol(MAX(0, hp_vol_l), MAX(0, hp_vol_r));
     }
 }