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From: Sinan Akman <sinan@writeme.com>
To: Michael Howard <mike@dewberryfields.co.uk>
Cc: alsa-devel@alsa-project.org
Subject: Re: Wandboard Quad - SPDIF issue, no sound
Date: Thu, 26 Jun 2014 15:07:57 -0400	[thread overview]
Message-ID: <53AC6F8D.6020101@writeme.com> (raw)
In-Reply-To: <53AC2E59.1030601@dewberryfields.co.uk>


   Hi Mike, I just saw this after I sent my other e-mail.

> The volatges match the spec sheets, i.e. 5v for the Cubietruck and 3.3v
> for the Wandboard at VCC whether audio is playing or not.

   Yes, this might be the issue.

> So unless both my receivers have a problem with only 3.3v I'm at a loss.
> I can't find anything on the limited specs for the receivers relating to
> this.

   I think you can just test your receiver(s) with another 3.3v source
and if you see the same problem then they probably need 5v levels.

> I guess I'll just sideline the Wandboards and use proper kit instead.

   If it turns out that the voltage level is really the problem and
you need to use those receivers I guess this would be the case. I
am not electrical but you might be able to build a small adaptor to
change the voltage levels on the spdif output. This would be another
solution.

   Regards

   Sinan Akman

  reply	other threads:[~2014-06-26 19:08 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-23 18:07 Wandboard Quad - SPDIF issue, no sound Michael Howard
2014-06-24  5:33 ` Sinan Akman
2014-06-24 14:57   ` Michael Howard
2014-06-24 23:49     ` Sinan Akman
2014-06-25 14:16       ` Michael Howard
2014-06-26 14:29         ` Michael Howard
2014-06-26 19:07           ` Sinan Akman [this message]
2014-06-26 18:56         ` Sinan Akman

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