diff --git a/ArcFormats/ArcFormats.csproj b/ArcFormats/ArcFormats.csproj
index 9a446277..2a48e033 100644
--- a/ArcFormats/ArcFormats.csproj
+++ b/ArcFormats/ArcFormats.csproj
@@ -319,6 +319,7 @@
+
diff --git a/ArcFormats/TechnoBrain/AudioWAPE.cs b/ArcFormats/TechnoBrain/AudioWAPE.cs
new file mode 100644
index 00000000..638e9076
--- /dev/null
+++ b/ArcFormats/TechnoBrain/AudioWAPE.cs
@@ -0,0 +1,164 @@
+//! \file AudioWAPE.cs
+//! \date Sat Dec 17 13:20:19 2016
+//! \brief TechnoBrain's compressed audio format.
+//
+// Copyright (C) 2016 by morkt
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//
+
+using System.ComponentModel.Composition;
+using System.IO;
+using GameRes.Utility;
+
+namespace GameRes.Formats.TechnoBrain
+{
+ [Export(typeof(AudioFormat))]
+ public class WapeAudio : AudioFormat
+ {
+ public override string Tag { get { return "WAPE"; } }
+ public override string Description { get { return "TechnoBrain's compressed audio"; } }
+ public override uint Signature { get { return 0; } } // 'RIFF'
+ public override bool CanWrite { get { return false; } }
+
+ public WapeAudio ()
+ {
+ Extensions = new string[] { "wav" };
+ }
+
+ public override SoundInput TryOpen (IBinaryStream file)
+ {
+ var header = file.ReadHeader (0x2C);
+ if (!header.AsciiEqual ("RIFF") || !header.AsciiEqual (8, "WAPEfmt ")
+ || !header.AsciiEqual (0x24, "data"))
+ return null;
+ var reader = new WapeDecoder (file);
+ var pcm = reader.ConvertToPcm();
+ var format = new WaveFormat
+ {
+ FormatTag = header.ToUInt16 (0x14),
+ Channels = header.ToUInt16 (0x16),
+ SamplesPerSecond = header.ToUInt32 (0x18),
+ AverageBytesPerSecond = header.ToUInt32 (0x1C),
+ BlockAlign = header.ToUInt16 (0x20),
+ BitsPerSample = header.ToUInt16 (0x22),
+ };
+ file.Dispose();
+ return new RawPcmInput (pcm, format);
+ }
+ }
+
+ internal sealed class WapeDecoder
+ {
+ IBinaryStream m_input;
+ int m_cur_bit;
+ byte m_cur_byte;
+
+ public WapeDecoder (IBinaryStream input)
+ {
+ m_input = input;
+ }
+
+ public Stream ConvertToPcm ()
+ {
+ m_input.Position = 0x2C;
+ m_cur_bit = 0;
+ int pcm_size = m_input.ReadInt32();
+ var pcm = new byte[pcm_size];
+ int dst = 0;
+ while (dst < pcm_size)
+ {
+ if (0 == GetBits (1))
+ {
+ pcm[dst++] = (byte)GetBits (7);
+ }
+ else if (0 == GetBits (1))
+ {
+ int sample = GetBits (2);
+ switch (sample)
+ {
+ case 0xC0:
+ sample = pcm[dst-1] + 4;
+ break;
+ case 0x80:
+ sample = pcm[dst-1] + 2;
+ break;
+ case 0x40:
+ sample = pcm[dst-1] - 2;
+ break;
+ case 0x00:
+ sample = pcm[dst-1] - 4;
+ break;
+ }
+ pcm[dst++] = (byte)sample;
+ }
+ else if (0 == GetBits (1))
+ {
+ int sample = GetBits (2);
+ switch (sample)
+ {
+ case 0xC0:
+ sample = pcm[dst-1] + 8;
+ break;
+ case 0x80:
+ sample = pcm[dst-1] + 6;
+ break;
+ case 0x40:
+ sample = pcm[dst-1] - 6;
+ break;
+ case 0x00:
+ sample = pcm[dst-1] - 8;
+ break;
+ }
+ pcm[dst++] = (byte)sample;
+ }
+ else
+ {
+ int count = GetBits (5) >> 3;
+ if (0x1F == count)
+ count = GetBits (8) + 0x1F;
+ ++count;
+ Binary.CopyOverlapped (pcm, dst - 1, dst, count);
+ dst += count;
+ }
+ if (0xFE == pcm[dst-1])
+ pcm[dst-1] = 0xFF;
+ }
+ return new MemoryStream (pcm);
+ }
+
+ static readonly byte[] mask_table = { 1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80 };
+
+ int GetBits (int count)
+ {
+ int v = 0;
+ for (int i = 0; i < count; ++i)
+ {
+ if (--m_cur_bit < 0)
+ {
+ m_cur_byte = m_input.ReadUInt8();
+ m_cur_bit = 7;
+ }
+ if (0 != (m_cur_byte & mask_table[m_cur_bit]))
+ v |= mask_table[7 - i];
+ }
+ return v;
+ }
+ }
+}