From: Vanessa Ezekowitz <vanessaezekowitz@gmail.com>
To: linux-dvb@linuxtv.org, video4linux-list@redhat.com
Subject: cx88-alsa audio quality?
Date: Mon, 29 Sep 2008 01:01:51 -0500 [thread overview]
Message-ID: <20080929010151.111f31a2@rainbird> (raw)
I forget if I've already mentioned this yet...
I recently started playing around with analog NTSC television again on my system, while trying to help someone solve a problem on their system. In the process I ran into a problem getting cx88-alsa to build with the rest of the v4l-dvb repository. As it turned out, mine was one of the stock Ubuntu kernels that have some odd issue with the I2C configuration. I had to build a vanilla kernel (2.6.26.5), making all the I2C stuff into modules as opposed to built-in. So, that's fixed - cx88-alsa builds and loads OK now.
However, I have a new problem:
Something has broken the output that cx88-alsa creates. In the case of my Kworld ATSC 120, radio output on all frequencies has a sort of growling "industrial" noise on top of the actual audio, kinda like the background noise of a manufacturing facility.
Analog TV on all channels gives clean but very tinny audio, as though the sample rate were really low (~8kHz).
Since other audio sources are working fine, I can't tell if this is a bug in the kernel, or cx88-alsa, or something else entirely. I've only noticed the problem for a matter of a week or less, so I'm not sure when it started. The problem persists as of today's pull of the v4l-dvb repository.
--
"Life is full of positive and negative events. Spend
your time considering the former, not the latter."
Vanessa Ezekowitz <vanessaezekowitz@gmail.com>
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next reply other threads:[~2008-09-29 6:02 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-29 6:01 Vanessa Ezekowitz [this message]
2008-09-29 9:31 ` [linux-dvb] cx88-alsa audio quality? Anders Semb Hermansen
2008-09-29 10:23 ` yoshi watanabe
2008-09-29 14:06 ` Mauro Carvalho Chehab
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