<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif">I had this same problem recently. I think what fixed it for me was setting the sampling rate at 48000Hz - after I did that the problem went away, and I get crystal clear sound in MP3 or PCM.</DIV>
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<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif">Hope that helps.</DIV>
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<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif">Paul<BR><BR></DIV>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif">----- Original Message ----<BR>From: Chris DiLorenzo <cdilorenzo@alum.rpi.edu><BR>To: MythTV Mailing List <mythtv-users@mythtv.org><BR>Sent: Sunday, April 1, 2007 6:08:29 PM<BR>Subject: [mythtv-users] "Squeaky" audio when using Plextor M402U<BR><BR>I'm using a Plextor M402U to capture from DirecTV. I am running Gentoo with the 2.6.18 kernel. I patched the Go7007 drivers and was able to build them with no problems. When I use the gorecord application, I am able to capture video with no problems. <BR><BR>However, when I use MythTV (ver 0.20) I can capture shows, but the sound is horrible. There is this annoying high pitched hum or squeak and the voices are distorted. It is not my frontend system since the distortion occurs when I play the files with mplayer directly on the bcakend. <BR><BR>When a recording starts, I do get the following
errors:<BR><BR>2007-04-01 17:30:06.182 External Tuning program exited with no error<BR>VIDIOC_S_CTRL:V4L2_CID_AUDIO_MUTE: Invalid argument<BR>2007-04-01 17:30:06.840 NVR(/dev/v4l/video0) Error: Can't open vbi device: ''<BR>2007-04-01 17:30:06.936 Started recording: Drake & Josh: channel 2299 on cardid 9, sourceid 2<BR><BR>The recording is normal in every other way, except for the sound. <BR><BR>I am using a 44100 Hz sampling rate. This problem occurs whether I use MP3 audio or uncompressed PCM audio.<BR><BR>I have ALSA with OSS emulation built into the kernel. <BR><BR>If you want to hear an example, you can download a nuv from <A href="http://home.comcast.net/~dilorc/Bad_MP3.nuv" target=_blank rel=nofollow>http://home.comcast.net/~dilorc/Bad_MP3.nuv</A><BR><BR>Any ideas?<BR>
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