[ivtv-users] cx18 Have 2 installed HVR-1600s, 1 never records audio

[. .]

Andy,

Thanks for replying. First off, I'm pretty sure I'm using revision 9755 of cx18-bugfix.

I tested mplayer on /dev/video0 for ~90 seconds and the "A:" time stamp stayed in sync with the "V:" time stamp.

I run 'cat /dev/video0 > foo0.mpg' at boot init to get around the 1st recording with no audio issue and since adding the 2nd HVR-1600 I also do 'cat /dev/video1 > foo1.mpg'. I checked out these recordings and the /dev/video0 recording has no sound and the /dev/video1 has corrupted fast sound (I think this is expected). In case you forgot /dev/video1 eventually has sound and in my old config with just 1 HVR-1600 /dev/video0 eventually had sound.

After boot init and after X is loaded I also verified /dev/video0 records no audio by doing another 'cat /dev/video0 > foo0.mpg' and there wasn't any audio when played back. 

The output (see below) says the audio is muted, am I doing something wrong? While waiting for your reply, I'll be looking to see if there is a way to manually unmute the audio. However, please reply if you can because I may not be successful in finding a way to manually unmute in a persistent (but not across a power-off/power-on cycle) & reliable way.

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v4l2-ctl -d /dev/video0 --log-status

Status Log:

   cx18-0: =================  START STATUS CARD #0  =================
   tveeprom 0-0050: Hauppauge model 74041, rev C6B2, serial# XXXXXXX
   tveeprom 0-0050: MAC address is XX-XX-XX-XX-XX-XX
   tveeprom 0-0050: tuner model is TCL M2523_5N_E (idx 112, type 50)
   tveeprom 0-0050: TV standards NTSC(M) (eeprom 0x08)
   tveeprom 0-0050: audio processor is CX23418 (idx 38)
   tveeprom 0-0050: decoder processor is CX23418 (idx 31)
   tveeprom 0-0050: has no radio, has IR receiver, has IR transmitter
   cx18-0: Video signal:              present
   cx18-0: Detected format:           NTSC-M
   cx18-0: Specified standard:        NTSC-M
   cx18-0: Specified video input:     Composite 7
   cx18-0: Specified audioclock freq: 48000 Hz
   cx18-0: Detected audio mode:       mono
   cx18-0: Detected audio standard:   no detected audio standard
   cx18-0: Audio muted:               yes
   cx18-0: Audio microcontroller:     running
   cx18-0: Configured audio standard: automatic detection
   cx18-0: Configured audio system:   BTSC
   cx18-0: Specified audio input:     Tuner (In8)
   cx18-0: Preferred audio mode:      stereo
   cs5345 0-004c: Input:  1
   cs5345 0-004c: Volume: 0 dB
   tuner 1-0061: Tuner mode:      analog TV
   tuner 1-0061: Frequency:       289.25 MHz
   tuner 1-0061: Standard:        0x0000b000
   cx18-0: Video Input: Tuner 1
   cx18-0: Audio Input: Tuner 1
   cx18-0: GPIO:  direction 0x00003001, value 0x00003001
   cx18-0: Tuner: TV
   cx18-0: Stream: MPEG-2 Program Stream
   cx18-0: VBI Format: No VBI
   cx18-0: Video:  720x480, 30 fps
   cx18-0: Video:  MPEG-2, 4x3, Variable Bitrate, 4500000, Peak 6000000
   cx18-0: Video:  GOP Size 15, 2 B-Frames, GOP Closure
   cx18-0: Audio:  48 kHz, MPEG-1/2 Layer II, 384 kbps, Stereo, No Emphasis, No CRC
   cx18-0: Spatial Filter:  Manual, Luma 1D Horizontal, Chroma 1D Horizontal, 0
   cx18-0: Temporal Filter: Manual, 8
   cx18-0: Median Filter:   Off, Luma [0, 255], Chroma [0, 255]
   cx18-0: Status flags: 0x00200001
   cx18-0: Stream encoder MPEG: status 0x0118, 28% of 2016 KiB (63 buffers) in use
   cx18-0: Stream encoder YUV: status 0x0000, 0% of 2048 KiB (16 buffers) in use
   cx18-0: Stream encoder PCM audio: status 0x0000, 0% of 1008 KiB (63 buffers) in use
   cx18-0: Read MPEG/VBI: 52838400/0 bytes
   cx18-0: ==================  END STATUS CARD #0  ==================

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