diff --git a/v6d3music/ffmpegtoraudio.py b/v6d3music/ffmpegnormalaudio.py
similarity index 60%
rename from v6d3music/ffmpegtoraudio.py
rename to v6d3music/ffmpegnormalaudio.py
index 005ad5f..7beefb5 100644
--- a/v6d3music/ffmpegtoraudio.py
+++ b/v6d3music/ffmpegnormalaudio.py
@@ -1,12 +1,20 @@
 import shlex
 import subprocess
+import time
 
 import discord
 
 
-class FFmpegTorAudio(discord.FFmpegAudio):
-    def __init__(self, source, *, executable='ffmpeg', pipe=False, stderr=None, before_options=None, options=None):
-        args = [executable]
+class FFmpegNormalAudio(discord.FFmpegAudio):
+    def __init__(
+            self, source, *, executable='ffmpeg', pipe=False, stderr=None, before_options=None, options=None,
+            tor: bool
+    ):
+        args = []
+        if tor:
+            args.append(executable)
+            executable = 'torify'
+
         subprocess_kwargs = {'stdin': source if pipe else subprocess.DEVNULL, 'stderr': stderr}
 
         if isinstance(before_options, str):
@@ -21,11 +29,13 @@ class FFmpegTorAudio(discord.FFmpegAudio):
 
         args.append('pipe:1')
 
-        super().__init__(source, executable='torify', args=args, **subprocess_kwargs)
+        super().__init__(source, executable=executable, args=args, **subprocess_kwargs)
 
     def read(self):
         ret = self._stdout.read(discord.opus.Encoder.FRAME_SIZE)
         if len(ret) != discord.opus.Encoder.FRAME_SIZE:
+            if self._process.poll() is None:
+                time.sleep(.5)
             return b''
         return ret
 
diff --git a/v6d3music/run-bot.py b/v6d3music/run-bot.py
index 33b2b61..282940c 100644
--- a/v6d3music/run-bot.py
+++ b/v6d3music/run-bot.py
@@ -23,7 +23,7 @@ from v6d2ctx.lock_for import lock_for
 from v6d2ctx.serve import serve
 
 import v6d3music.extract
-import v6d3music.ffmpegtoraudio
+import v6d3music.ffmpegnormalaudio
 from v6d3music.config import prefix, myroot
 
 loop = asyncio.new_event_loop()
@@ -146,13 +146,11 @@ class YTAudio(discord.AudioSource):
 
     def set_source(self):
         self.schedule_duration_update()
-        audio_class = discord.FFmpegPCMAudio
-        if self.tor:
-            audio_class = v6d3music.ffmpegtoraudio.FFmpegTorAudio
-        self.source = audio_class(
+        self.source = v6d3music.ffmpegnormalaudio.FFmpegNormalAudio(
             self.url,
             options=self.options,
-            before_options=self.before_options()
+            before_options=self.before_options(),
+            tor=self.tor
         )
 
     def set_already_read(self, already_read: int):
@@ -456,6 +454,7 @@ async def cache_url(hurl: str, rurl: str, override: bool, tor: bool) -> None:
         if cachable:
             print('caching', hurl)
             path = cache_root / f'{hurl}.opus'
+            tmp_path = cache_root / f'{hurl}.tmp.opus'
             args = []
             if tor:
                 args.append('torify')
@@ -464,7 +463,7 @@ async def cache_url(hurl: str, rurl: str, override: bool, tor: bool) -> None:
                     'ffmpeg', '-hide_banner', '-loglevel', 'warning',
                     '-reconnect', '1', '-reconnect_at_eof', '0',
                     '-reconnect_streamed', '1', '-reconnect_delay_max', '10', '-copy_unknown',
-                    '-y', '-i', rurl, str(path)
+                    '-y', '-i', rurl, str(tmp_path)
                 ]
             )
             p = subprocess.Popen(
@@ -474,6 +473,7 @@ async def cache_url(hurl: str, rurl: str, override: bool, tor: bool) -> None:
                 code = await loop.run_in_executor(None, p.wait)
             if code:
                 raise RuntimeError(code)
+            await loop.run_in_executor(None, tmp_path.rename, path)
             await cache_db.set(f'url:{hurl}', str(path))
             print('cached', hurl)
             # await cache_db.set(f'cachable:{hurl}', False)
@@ -578,11 +578,12 @@ presets: dict[str, str] = {
     'bassboost': 'bass=g=10',
     'bassbooboost': 'bass=g=30',
     'nightcore': 'asetrate=67882',
+    'daycore': 'atempo=.9,aecho=1.0:0.5:20:0.5',
     'пришествие анимешне': 'bass=g=15,asetrate=67882,bass=g=15',
     'difference': 'aeval=val(0)-val(1)|val(1)-val(0)',
     'mono': 'aeval=.5*val(0)+.5*val(1)|.5*val(1)+.5*val(0)',
 }
-allowed_presets = ['bassboost', 'bassbooboost', 'nightcore', 'mono']
+allowed_presets = ['bassboost', 'bassbooboost', 'nightcore', 'daycore', 'mono']
 allowed_effects = {'', *(presets[key] for key in allowed_presets)}