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Level 8

WMV Audio Not Working

I have a WMV file created using Windows Live Movie Maker that I am trying to play using an roVideoScreen object. The video works fine, but I hear no audio.

I can convert the file to MP4 using Handbrake and both the audio and video are fine.

This is the WMV file I'm trying to play:

Complete name : C:\Videos\My Movie2.wmv
Format : Windows Media
File size : 8.28 MiB
Duration : 41s 783ms
Overall bit rate mode : Constant
Overall bit rate : 1 662 Kbps
Maximum Overall bit rate : 1 645 Kbps
Encoded date : UTC 2011-09-24 19:58:26.689

ID : 1
Format : VC-1
Format profile : MP@ML
Codec ID : WMV3
Codec ID/Info : Windows Media Video 9
Codec ID/Hint : WMV3
Description of the codec : Windows Media Video 9 - Professional
Duration : 41s 775ms
Bit rate mode : Constant
Bit rate : 1 500 Kbps
Width : 640 pixels
Height : 480 pixels
Display aspect ratio : 4:3
Frame rate : 29.970 fps
Bit depth : 8 bits
Scan type : Progressive
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.163
Stream size : 7.47 MiB (90%)

ID : 2
Format : WMA
Format profile : Pro
Codec ID : 162
Codec ID/Info : Windows Media Audio
Description of the codec : Windows Media Audio 10 Professional - 128 kbps, 48 kHz, 2 channel 16 bit (A/V) 1-pass CBR
Duration : 41s 783ms
Bit rate mode : Constant
Bit rate : 128 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Stream size : 653 KiB (8%)

Any ideas why I'm not hearing the audio?
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3 Replies
Level 15

Re: WMV Audio Not Working

According to the documentation, WMA 9.2 is supported for audio. WMA 10 isn't mentioned.

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Level 8

Re: WMV Audio Not Working

Thanks. I see now that WMA 10 is not supported. I guess I'll just have to convert the WMV files into MP4's using Handbrake. I was trying to save myself a step, hoping that Roku would handle my WMV's without any other conversion.
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Level 8

Re: WMV Audio Not Working

I've discovered that Windows Live Movie Maker will only generate WMV files that use WMA 10 Professional audio, which is not supported by Roku. However, I've been playing around with the free version of another movie editor, VideoPad Video Editor, which also generates WMV files and allows you the option of generating audio in either WMA 9.2 (which is supported by Roku) or WMA 10 Professional format. Now I have a quick, easy, free way of editing my videos and playing them using my Roku.
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