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More => Old Versions => Media Center 15 (Development Ended) => Topic started by: Marcel de Man on October 28, 2010, 08:18:03 am

Title: one audio channel missing
Post by: Marcel de Man on October 28, 2010, 08:18:03 am

This is the weirdest problem, hope someone can shine a light on this.
Setup is windows xp with 3 audio cards using 3 zones.
2 zones work fine, 3 zone looses the left channel.

Basically what happening is this both channels works fine. Next I hear a sharp click and the left channel is gone. I can see in the MC top window that the spectrum analyzer for the left channel is gone. To get it back I have to stop and start play again. Then it will play again for about 10 minutes.

Sounds like a hardware problem bit i would think if that is the case the spectrum analyzer would still show.

Any suggestions anyone?

Thanks
Marce

Title: Re: one audio channel missing
Post by: Matt on October 28, 2010, 08:59:13 am

I've never seen anything like this.

But you're correct that if the spectrum analyzer flat lines, it means we're delivering silence to the hardware.

I would start by disabling all DSP in DSP Studio and testing again.

Thanks.

Title: Re: one audio channel missing
Post by: Marcel de Man on October 28, 2010, 09:04:51 am

Ok will do.

BTW just noticed something else. If I'm doing a remote desktop with leaving the sound at the remote computer it doesn't happen.

Marcel

Title: Re: one audio channel missing
Post by: Marcel de Man on November 04, 2010, 12:08:54 pm

Ok took me a while to get to the bottom of this but I got it figured out.
First an explanation of what I'm running. MC version 15.0.142 in combination with Homeseer running MC plugin. I have 3 zones defined. Zone 1 using the on board realtek HD sound card. Zones 2 & 3 are using soundblaster cards.

Zones 2 & 3 are running flawless. Zone 1 has an issue as mentioned before. Quick recap, I'm listening to music and hear a sharp pop. 1 channel is missing. Spectrum analyzer of the left channel is gone. After trying all DSP options I use in different combinations  I noticed that if I disable the equalizer I hear a sharp pop again and the channel is back. If I leave the equalizer disabled the channel stays and everything plays fine. So for now I do not use the equalizer for zone 1.

Regards
Marcel

Title: Re: one audio channel missing
Post by: JimH on November 04, 2010, 12:32:24 pm

You might try a different sound device.  Or update the driver.

What is the source file that you're playing?  bitrate, source bit depth, file type, etc.

Title: Re: one audio channel missing
Post by: Marcel de Man on November 04, 2010, 12:39:31 pm

I'm running a mix of mp3's and wma files. Bitrate changes as well from song to song (192, 256, 128). Don't know where to find source depth.
Will try a different sound device after work today.

Marcel