output: revert audio buffer to 50ms

shukusai/src/audio/output.rs

@@ -125,7 +125,7 @@ mod output {
 			}
 
 			// Create PulseAudio buffer attribute.
-			const T_LENGTH: u32 = 8192;
+			const T_LENGTH: u32 = 16384;
 			let pa_buf_attr = pulse::def::BufferAttr {
 				// This reduces the audio buffer we hold.
 				//
@@ -134,7 +134,7 @@ mod output {
 				// via Festival since we flush the samples that
 				// haven't been played yet.
 				//
-				// This sets it to around 25ms~.
+				// This sets it to around 50ms~.
 				tlength: T_LENGTH,
 
 				maxlength: std::u32::MAX,
@@ -304,8 +304,8 @@ mod output {
 				buffer_size: cpal::BufferSize::Default,
 			};
 
-			// Create a ring buffer with a capacity for up-to 25ms of audio.
-			let ring_len = ((25 * spec.rate as usize) / 1000) * num_channels;
+			// Create a ring buffer with a capacity for up-to 50ms of audio.
+			let ring_len = ((50 * spec.rate as usize) / 1000) * num_channels;
 
 			let ring_buf = SpscRb::new(ring_len);
 			let (ring_buf_producer, ring_buf_consumer) = (ring_buf.producer(), ring_buf.consumer());