[clug] RTL

[Eyal Lebedinsky]

[I hope it is acceptable to reply to list]

On 26/08/16 23:21, Keith Goggin wrote:
>
>
> On 26/08/16 21:41, Eyal Lebedinsky wrote:
>> On 26/08/16 20:32, Keith Goggin wrote:
>>> Has anyone got rtl working on Linux Mint?
>>>
>>> I use Linux Mint 17.3 and I installed
>>>
>>> rtl-sdr
>>> librtlsdr-dev
>>> librtlsdr0
>>> gqrx-sdr
>>> gr-osmosdr
>>>
>>> and blacklisted
>>>
>>> blacklist dvb_usb_rtl28xxu
>>> blacklist rtl2832
>>> blacklist dvb_usb
>>> blacklist dvb_usb_v2
>>> blacklist dvb_core
>>> blacklist r820t
>>>
>>> I ran rtl_test OK then the following which seems to work BUT I'm not
>>> getting any sound?
>>>
>>> kg at laptop ~ $ rtl_fm -M wbfm -f 99.1M | play -r 32k -t raw -e s -b 16
>>> -c 1 -V1 -
>>> Found 1 device(s):
>>>    0:  Realtek, RTL2838UHIDIR, SN: 00000001
>>>
>>> Using device 0: Generic RTL2832U OEM
>>>
>>> -: (raw)
>>>
>>>    Encoding: Signed PCM
>>>    Channels: 1 @ 16-bit
>>> Samplerate: 32000Hz
>>> Replaygain: off
>>>    Duration: unknown
>>>
>>> In:0.00% 00:00:00.00 [00:00:00.00] Out:0     [      |      ] Clip:0
>>> Found Rafael Micro R820T tuner
>>> Oversampling input by: 42x.
>>> Oversampling output by: 1x.
>>> Buffer size: 8.13ms
>>> Tuned to 99352000 Hz.
>>> Sampling at 1008000 Hz.
>>> Output at 24000 Hz.
>>> Exact sample rate is: 1008000.009613 Hz
>>> Tuner gain set to automatic.
>>
>> Did you run the first part only (rtl_fm) into, say, 'pv' like
>>     rtl_fm -M wbfm -f 99.1M | pv -pretab >/dev/null
>> to see if the problem is 'rtl_fm' delivering no data or 'play' producing
>> no sound? Maybe try a different station (in case 99.1 is too weak there)?
>>
>> Good luck.
>>
>>> I've tried to install shinysdr but I've just dug myself a deeper
>>> python hole:-(
>>
>> --
>> Eyal at Home (eyal at eyal.emu.id.au)
>>
>
> Hi Eyal,
>
> Thanks for replying
>
> kg at laptop ~ $ rtl_fm -M wbfm -f 99.1M | pv -pretab >/dev/null
> Found 1 device(s):
>    0:  Realtek, RTL2838UHIDIR, SN: 00000001
>
> Using device 0: Generic RTL2832U OEM
> Found Rafael Micro R820T tuner
> Oversampling input by: 42x.
> Oversampling output by: 1x.
> Buffer size: 8.13ms
> Tuned to 99352000 Hz.
> Sampling at 1008000 Hz.
> Output at 24000 Hz.
> Exact sample rate is: 1008000.009613 Hz
> Tuner gain set to automatic.
> ^C 0B 0:00:31 [   0B/s] [   0B/s] [<=>                         ]
> Signal caught, exiting!
>
> User cancel, exiting...
> kg at laptop ~ $
>
> Looks like no data and the same from 105.5M

I saw this kind of result when I connected the dongle through a USB
hub that did not handle USB 2.0 properly, probably connecting the
dongle as USB 1.0 - worth a check?

That's all I can think of now.

-- 
Eyal at Home (eyal at eyal.emu.id.au)