tts radio sound mixer (tgstation#113)

## About The Pull Request
Теперь разделена громкость звука между TTS рации и TTS локальным

# Проверьте на локалке с доступным TTS

## Changelog
:cl:
add: Теперь разделена громкость звука между TTS рации и TTS локальным
/:cl:

modular_bandastation/tts/code/tts_preferences.dm

@@ -53,3 +53,14 @@
 
 /datum/preference/text/tts_seed/apply_to_human(mob/living/carbon/human/target, value)
 	target.AddComponent(/datum/component/tts_component, SStts220.tts_seeds[value])
+
+/datum/preference/numeric/sound_tts_volume_radio
+	category = PREFERENCE_CATEGORY_GAME_PREFERENCES
+	savefile_key = "sound_tts_volume_radio"
+	savefile_identifier = PREFERENCE_PLAYER
+
+	minimum = 0
+	maximum = 100
+
+/datum/preference/numeric/sound_tts_volume_radio/create_default_value()
+	return maximum

modular_bandastation/tts/code/tts_subsystem.dm

@@ -352,7 +352,12 @@ SUBSYSTEM_DEF(tts220)
 	queue_sound_effect_processing(pure_filename, effect, filename2play, output_tts_cb)
 
 /datum/controller/subsystem/tts220/proc/output_tts(atom/speaker, mob/listener, filename2play, is_local = TRUE, preSFX = null, postSFX = null)
-	var/volume = listener?.client?.prefs?.read_preference(/datum/preference/numeric/sound_tts_volume)
+	var/volume
+	if(findtext(filename2play, "radio"))
+		volume = listener?.client?.prefs?.read_preference(/datum/preference/numeric/sound_tts_volume_radio)
+	else
+		volume = listener?.client?.prefs?.read_preference(/datum/preference/numeric/sound_tts_volume)
+
 	if(!volume)
 		return
 
@@ -362,7 +367,7 @@ SUBSYSTEM_DEF(tts220)
 	output.status = SOUND_STREAM
 	if(!is_local || isnull(speaker))
 		output.wait = TRUE
-		output.volume = volume * 0.75 // non-local is slightly less loud // TODO220: Make volume different
+		output.volume = volume
 		output.environment = SOUND_ENVIRONMENT_NONE
 
 		if(output.volume <= 0)

tgui/packages/tgui/interfaces/PreferencesMenu/preferences/features/game_preferences/sounds220.tsx

@@ -0,0 +1,10 @@
+import { Feature, FeatureSliderInput } from '../base';
+
+// BANDASTATION SOUND PREFS
+
+export const sound_tts_volume_radio: Feature<number> = {
+  name: 'TTS - громкость рации',
+  category: 'ЗВУК',
+  description: 'Громкость text-to-speech, когда используется рация.',
+  component: FeatureSliderInput,
+};