[Discuss-gnuradio] Wav File Source and Audio Sink

Hi all,

I am little bit puzzled by a simple flowgraph.
I have prepared a wav file using following graph: Signal Source (float,
sine, 1khz freq, sample rate 8000) -> Throttle -> Wav File Sink (sample
rate 8000, 8 bit per sym).

Then i created graph for listening: Wav file source -> Audio Sink
(sample rate 8000) + FFT Sink.
And then i ran this flowgraph, i faced with following problem: I don't
hear anything from audio sink.

FFT sink shows me that data is coming, 1 khz peak is present on FFT, but
i can't hear it.

Could somebody explain this strange behaviour.

Best regards,
Igor

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