MeGUI Audio Encoding Error

[ect5150]

Hello all! Just asking if I can get some suggestions on what might be going wrong. I'm getting the following error when encoding audio via NeroAacEnc (full log below):
-[Error] [12/18/2013 8:29:59 PM] An error occurred
--[Error] [12/18/2013 8:29:59 PM] Exception message: The pipe has been ended.
--[Error] [12/18/2013 8:29:59 PM] Stacktrace
---[NoImage] at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
---[NoImage] at System.IO.FileStream.WriteCore(Byte[] buffer, Int32 offset, Int32 count)
---[NoImage] at System.IO.FileStream.Write(Byte[] array, Int32 offset, Int32 count)
---[NoImage] at MeGUI.AviSynthAudioEncoder.encode()
--[Error] [12/18/2013 8:29:59 PM] Inner exception: null

My scenario is simply ripping a BluRay and encoding it to my own liking. No problems with video, but encoding the dts/wav/w64/etc... is always giving me the above error. I am trying to use neroAacEnc to encode to an aac with roughly 384000 bits/sec.

I will say I can use eac3to options during the HD Stream Extraction to target quality and have no problems - but it's just a problem that I would like to take care of since I don't understand what is causing it.

Other threads with a similar error usually seem to have an unsupported sample rate, but I don't think that that's the problem. Any help/suggestions would greatly be appreciated. Thank you for your time.

Full log:---[Information] Channels: 6
---[Information] ChannelsString: 6 channels
---[Information] ChannelPositionsString2: 3/2/0.1
---[Information] BitRateMode: CBR
---[Information] Delay:
---[Information] Title:
---[Information] Language:
---[Information] LanguageString:
---[Information] Default:
---[Information] DefaultString:
---[Information] Forced:
---[Information] ForcedString:
-[Information] [12/18/2013 8:29:53 PM] Trying to open the file with NicAudio
-[Information] [12/18/2013 8:29:56 PM] Successfully opened the file with NicAudio
-[Information] [12/18/2013 8:29:56 PM] Avisynth script
--[NoImage] LoadPlugin("C:\Video\Programs\megui\tools\avisynth_plugin\NicAudio.dll")
--[NoImage] RaWavSource("C:\Video\Images\MainMovie\34255889_PRESTIGE_NA\BDMV\STREAM\T4_Audio - English.w64", 2)
--[NoImage] return last
-[Information] [12/18/2013 8:29:56 PM] Commandline used: -ignorelength -br 384000 -if - -of "{0}"
-[Information] [12/18/2013 8:29:56 PM] Avisynth script environment opened
-[Information] [12/18/2013 8:29:58 PM] Script loaded
-[Information] [12/18/2013 8:29:58 PM] Output Decoder
--[Information] [12/18/2013 8:29:58 PM] Channels: 6
--[Information] [12/18/2013 8:29:58 PM] Bits per sample: 24
--[Information] [12/18/2013 8:29:58 PM] Sample rate: 48000
-[Information] [12/18/2013 8:29:58 PM] Job commandline: C:\Video\Programs\megui\tools\neroAacEnc\neroAacEnc.exe -ignorelength
-br 384000 -if - -of "C:\Video\Images\MainMovie\34255889_PRESTIGE_NA\BDMV\STREAM\T4_Audio - English.mp4"
-[Information] [12/18/2013 8:29:58 PM] Process started
-[Information] [12/18/2013 8:29:58 PM] Standard output stream
--[Information] [12/18/2013 8:29:59 PM] ERROR: error while encoding frame
-[Information] [12/18/2013 8:29:58 PM] Standard error stream
--[Information] [12/18/2013 8:29:59 PM] *************************************************************
--[Information] [12/18/2013 8:29:59 PM] * *
--[Information] [12/18/2013 8:29:59 PM] * Nero AAC Encoder *
--[Information] [12/18/2013 8:29:59 PM] * Copyright 2009 Nero AG *
--[Information] [12/18/2013 8:29:59 PM] * All Rights Reserved Worldwide *
--[Information] [12/18/2013 8:29:59 PM] * *
--[Information] [12/18/2013 8:29:59 PM] * Package build date: Feb 18 2010 *
--[Information] [12/18/2013 8:29:59 PM] * Package version: 1.5.4.0 *
--[Information] [12/18/2013 8:29:59 PM] * *
--[Information] [12/18/2013 8:29:59 PM] * See -help for a complete list of available parameters. *
--[Information] [12/18/2013 8:29:59 PM] * *
--[Information] [12/18/2013 8:29:59 PM] *************************************************************
-[Error] [12/18/2013 8:29:59 PM] An error occurred
--[Error] [12/18/2013 8:29:59 PM] Exception message: The pipe has been ended.
--[Error] [12/18/2013 8:29:59 PM] Stacktrace
---[NoImage] at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
---[NoImage] at System.IO.FileStream.WriteCore(Byte[] buffer, Int32 offset, Int32 count)
---[NoImage] at System.IO.FileStream.Write(Byte[] array, Int32 offset, Int32 count)
---[NoImage] at MeGUI.AviSynthAudioEncoder.encode()
--[Error] [12/18/2013 8:29:59 PM] Inner exception: null
-[Information] [12/18/2013 8:29:59 PM] Job completed

[tebasuna51]

I think the relevant info about the error is:

--[Information] [12/18/2013 8:29:59 PM] ERROR: error while encoding frame

Seems than NeroAacEnc have problems when try encode a particular frame, sometimes is because not enough bitrate allowed, here (384 Kb/s) is high but if work with "target quality" can be the problem.

Try encode with Variable Bitrate (Q=0,5).

[ect5150]

Try encode with Variable Bitrate (Q=0,5).
That worked. So the problem must be with the specific stream and NeroAacEnc itself?

This led me to run a command line 2-pass encode with a WAV file from the audio as well. I will report the 2-pass encode worked and allowed me to specificy the bitrate (384000 for what I wanted).
neroAacEnc.exe -ignorelength -2pass -br 384000 -if "ENGLISH.wav" -of "ENGLISH.mp4"

If anyone else ever has the problem, that is another potential solution for them.

Thanks so much for the help!