[Discuss-gnuradio] GNU Radio Companion - ALSA

[Robin A. Jensen]

Hello all of you.

I've just recieved my RTL-SDR dongle and is all new to this sdr-stuff, 
so please bear over with me, if i'm at the wrong place.
I'm using GNU Radio Companion on a RPi 3 and no mather what i'll do, i 
can't get the sound to work.
If a'im using rtl_fm and aplay, i'll get sound but it won't set on the 
radiostation. I'll take on that later.
I've createt a small FM Reciever in GNU Radio companion and everytime 
i'll execute the script i'll get an error:

RuntimeError.audio.alsa.sink

I've been all over the internet to find a solution but with no luck.
So now i'm have a hope that this mailling list can help me?

My setup is:
RTL-SDR Source: samplerate:  2M, frequency 96.5 MHz ->
Rationel Sampler: Interpolation 4, Decimation: 1 ->
Low Pass Filter: Sample rate: 2M, Cutoff freq: 100K, Transition Width: 
100k ->
WBFM Recive: Quadrature: 500K, Audio Decimation: 1 ->
Rationel Sampler: Interpolation: 500
Decimation: 48 ->
Audio Sink: Sample Rate: 48 KHz, Device Name: HW:0,0

I've found that recipie on a Hack5 video and there it's working

With best regards
Robin.