Random decoded error about nspeex HOT 7 OPEN

SpeexEncoder(BandMode mode)

mode is decided by your samples per sec.

public int Decode(byte[] inData, int inOffset, int inCount, short[] outData, int outOffset, bool lostFrame) 
{

            if (decodedData.Length < outData.Length * 2)
            {
                // resize the decoded data buffer
                decodedData = new float[outData.Length * 2];
            }

            if (lostFrame || inData == null)
            {
                decoder.Decode(null, decodedData);
                for (int i = 0; i < frameSize; i++, outOffset++)
                {
                    outData[outOffset] = ConvertToShort(decodedData[i]);
                }
                return frameSize;
            }

            bits.ReadFrom(inData, inOffset, inCount);
            int samplesDecoded = 0;
            while (decoder.Decode(bits, decodedData) == 0)
            {
                for (int i = 0; i < frameSize; i++, outOffset++)
                {

                    outData[outOffset] = ConvertToShort(decodedData[i]);
                }
                samplesDecoded += frameSize;
            }

            return samplesDecoded;
 }

 public int Decode(byte[] inData, int inOffset, int inCount, short[] outData, int outOffset, bool lostFrame)
        {
            
                if (decodedData.Length < outData.Length * 2)
                {
                    // resize the decoded data buffer
                    decodedData = new float[outData.Length * 2];
                }

                if (lostFrame || inData == null)
                {
                    decoder.Decode(null, decodedData);
                    for (int i = 0; i < frameSize; i++, outOffset++)
                    {
                        outData[outOffset] = ConvertToShort(decodedData[i]);
                    }
                    return frameSize;
                }

                bits.ReadFrom(inData, inOffset, inCount);
                int samplesDecoded = 0;
                int result = decoder.Decode(bits, decodedData);
                if (result == 0)
                {
                    for (int i = 0; i < frameSize; i++, outOffset++)
                    {
                        outData[outOffset] = ConvertToShort(decodedData[i]);
                    }
                    samplesDecoded += frameSize;
                    
                }

                return samplesDecoded;
            
            
        }

do
				{
                    if (bits.BitsRemaining() < 5)
                        return -1;

					if (bits.Unpack(1) != 0)
					{ /*
												 * Skip wideband block (for
												 * compatibility)
												 */
						// Wideband
						/* Get the sub-mode that was used */
						m = bits.Unpack(NSpeex.SbCodec.SB_SUBMODE_BITS);
						int advance = NSpeex.SbCodec.SB_FRAME_SIZE[m];
						if (advance < 0)
						{
							//throw new InvalidFormatException(
							//		"Invalid sideband mode encountered (1st sideband): "
							//				+ m);
							 return -2;
						}
						advance -= (NSpeex.SbCodec.SB_SUBMODE_BITS + 1);
						bits.Advance(advance);
						if (bits.Unpack(1) != 0)
						{ /*
													 * Skip ultra-wideband block
													 * (for compatibility)
													 */
							/* Get the sub-mode that was used */
							m = bits.Unpack(NSpeex.SbCodec.SB_SUBMODE_BITS);
							advance = NSpeex.SbCodec.SB_FRAME_SIZE[m];
							if (advance < 0)
							{
          //                      throw new InvalidFormatException(
										//"Invalid sideband mode encountered. (2nd sideband): "
										//		+ m);
								 return -2;
							}
							advance -= (NSpeex.SbCodec.SB_SUBMODE_BITS + 1);
							bits.Advance(advance);
							if (bits.Unpack(1) != 0)
							{ /* Sanity check */
          //                      throw new InvalidFormatException(
										//"More than two sideband layers found");
								 return -2;
							}
						}
						// */
					}

                    if (bits.BitsRemaining() < 4)
                        return 1;

					/* Get the sub-mode that was used */
					m = bits.Unpack(NSpeex.NbCodec.NB_SUBMODE_BITS);
					if (m == 15)
					{ /* We found a terminator */
						return 1;
					}
					else if (m == 14)
					{ /* Speex in-band request */
						inband.SpeexInbandRequest(bits);
					}
					else if (m == 13)
					{ /* User in-band request */
						inband.UserInbandRequest(bits);
					}
					else if (m > 8)
					{ /* Invalid mode */
        //                throw new InvalidFormatException(
								//"Invalid mode encountered: " + m);
						 return -2;
					}
				} while (m > 8);
				submodeID = m;
			}