fix warnings

Author: goatchurchprime

audio/mic_input/MicRecord.gd

@@ -56,10 +56,10 @@ func _process(delta : float) -> void:
 			if $MicToGenerator.button_pressed:
 				$AudioGenerator.get_stream_playback().push_buffer(audio_samples)
 	if generator_freq != 0.0:
-		var gplayback = $AudioGenerator.get_stream_playback()
-		var gdt = 1.0/$AudioGenerator.stream.mix_rate
+		var gplayback : AudioStreamGeneratorPlayback = $AudioGenerator.get_stream_playback()
+		var gdt : float = 1.0/$AudioGenerator.stream.mix_rate
 		for i in range(gplayback.get_frames_available()):
-			var a = 0.5*sin(generator_timestamp*generator_freq*TAU)
+			var a : float = 0.5*sin(generator_timestamp*generator_freq*TAU)
 			gplayback.push_frame(Vector2(a, a))
 			generator_timestamp += gdt
 
@@ -87,8 +87,8 @@ func _on_record_button_toggled(toggled_on : bool) -> void:
 		recording_data.encode_u16(20, 1)
 		recording_data.encode_u16(22, 2)
 		recording_data.encode_u32(24, input_mix_rate)
-		recording_data.encode_u32(28, input_mix_rate*16*2/8)
-		recording_data.encode_u16(32, 16*2/8)
+		recording_data.encode_u32(28, input_mix_rate*4) # *16*2/8
+		recording_data.encode_u16(32, 4) # 16*2/8
 		recording_data.encode_u16(34, 16)
 		recording_data.encode_u32(36, 0x61746164) # 'data'
 		recording_data.encode_u32(40, data_size)