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 Post subject: PVR 150 Tinny noise R5B7
PostPosted: Thu Mar 23, 2006 11:56 am 
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Joined: Mon May 02, 2005 9:48 am
Posts: 36
All the drivers appear to have loaded correctly.

During live tv I'm getting a tinny output in the sound.

Here's the dmesg output

Code:
ivtv:  ==================== START INIT IVTV ====================
ivtv:  version 0.4.3 (tagged release) loading
ivtv:  Linux version: 2.6.15-chw-2 SMP preempt 586 gcc-3.3
ivtv:  In case of problems please include the debug info between
ivtv:  the START INIT IVTV and END INIT IVTV lines, along with
ivtv:  any module options, when mailing the ivtv-users mailinglist.
ivtv0: Autodetected WinTV PVR 150 card (cx23416 based)
ACPI: PCI Interrupt Link [APC2] enabled at IRQ 17
ACPI: PCI Interrupt 0000:01:05.0[A] -> Link [APC2] -> GSI 17 (level, low) -> IRQ 21
ivtv0: Unreasonably low latency timer, setting to 64 (was 32)
ivtv0: i2c attach to card #0 ok [client=tveeprom, addr=50]
tuner 2-0061: chip found @ 0xc2 (ivtv i2c driver #0)
ivtv0: i2c attach to card #0 ok [client=(tuner unset), addr=61]
tveeprom 2-0050: Hauppauge model 26032, rev C199, serial# 8247306
tveeprom 2-0050: tuner model is TCL 2002N 5H (idx 99, type 50)
tveeprom 2-0050: TV standards NTSC(M) (eeprom 0x08)
tveeprom 2-0050: audio processor is CX25841 (idx 35)
tveeprom 2-0050: decoder processor is CX25841 (idx 28)
tveeprom 2-0050: has no radio, has IR remote
cx25840 2-0044: cx25841-23 found @ 0x88 (ivtv i2c driver #0)
cx25840 2-0044: loaded v4l-cx25840.fw firmware (14264 bytes)
ivtv0: i2c attach to card #0 ok [client=cx25840, addr=44]
wm8775 2-001b: chip found @ 0x36 (ivtv i2c driver #0)
ivtv0: i2c attach to card #0 ok [client=wm8775, addr=1b]
ivtv0: loaded v4l-cx2341x-enc.fw firmware (262144 bytes)
ivtv0: Encoder revision: 0x02050032
ivtv0: Allocate DMA encoder MPEG stream: 128 x 32768 buffers (4096KB total)
ivtv0: Allocate DMA encoder YUV stream: 194 x 10800 buffers (2048KB total)
ivtv0: Allocate DMA encoder VBI stream: 120 x 17472 buffers (2048KB total)
ivtv0: Allocate DMA encoder PCM audio stream: 455 x 4608 buffers (2048KB total)
tuner 2-0061: type set to 50 (TCL 2002N)
eth0: no IPv6 routers present
ivtv0: Initialized WinTV PVR 150, card #0
ivtv:  ====================  END INIT IVTV  ====================
input: PC Speaker as /class/input/input3



LSPCI

Code:
0000:00:00.0 Host bridge: nVidia Corporation nForce3 Host Bridge (rev a4)
0000:00:01.0 ISA bridge: nVidia Corporation nForce3 LPC Bridge (rev a6)
0000:00:01.1 SMBus: nVidia Corporation nForce3 SMBus (rev a4)
0000:00:02.0 USB Controller: nVidia Corporation nForce3 USB 1.1 (rev a5)
0000:00:02.1 USB Controller: nVidia Corporation nForce3 USB 1.1 (rev a5)
0000:00:02.2 USB Controller: nVidia Corporation nForce3 USB 2.0 (rev a2)
0000:00:05.0 Ethernet controller: nVidia Corporation nForce3 Ethernet (rev a5)
0000:00:06.0 Multimedia audio controller: nVidia Corporation nForce3 Audio (rev a2)
0000:00:08.0 IDE interface: nVidia Corporation nForce3 IDE (rev a5)
0000:00:0a.0 PCI bridge: nVidia Corporation nForce3 PCI Bridge (rev a2)
0000:00:0b.0 PCI bridge: nVidia Corporation nForce3 AGP Bridge (rev a4)
0000:00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
0000:00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
0000:00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
0000:00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
0000:01:05.0 Multimedia video controller: Internext Compression Inc iTVC16 (CX23416) MPEG-2 Encoder (rev 01)
0000:01:06.0 FireWire (IEEE 1394): VIA Technologies, Inc. IEEE 1394 Host Controller (rev 80)
0000:01:07.0 RAID bus controller: Silicon Image, Inc. (formerly CMD Technology Inc) SiI 3512 [SATALink/SATARaid] Serial ATA Controller (rev 01)
0000:02:00.0 VGA compatible controller: nVidia Corporation NV34 [GeForce FX 5200] (rev a1)


Any idea how to get rid of the noise?


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 Post subject:
PostPosted: Mon Apr 17, 2006 10:17 pm 
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Joined: Mon Sep 27, 2004 1:26 pm
Posts: 16
There is a thread on ivtv that looks relevant. Specifically post #28 by Permalink.

http://www.gossamer-threads.com/lists/e ... ivtv#29537

I tried the new firmware, with ivtv 0.4.4 and so far the audio is better. I still have the brightness/saturation issue with my PVR 150 mentioned in http://mysettopbox.tv/phpBB2/viewtopic.php?t=9437 but at least it looks like progress is being made.


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 Post subject:
PostPosted: Tue Apr 18, 2006 7:38 pm 
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Joined: Thu Mar 25, 2004 11:00 am
Posts: 9551
Location: Arlington, MA
Also make sure that you don't have the capture volume turned up too high or you may get clipping and other artifacts. 90-95% is probably the max for most cards.


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 Post subject:
PostPosted: Fri Apr 21, 2006 10:50 pm 
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Joined: Thu Mar 16, 2006 10:46 pm
Posts: 17
Read my post and see if it helps:
http://mysettopbox.tv/phpBB2/viewtopic.php?p=57021


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