Re: [Discuss-gnuradio] Audio underrun when using Audio Sink

I measured the throughput with the "Probe Rate" block and figured out that it's much higher while the underruns are occuring ( > 80k samples) than when I have no underruns ( ~48k samples). -- View this message in context:

Re: [Discuss-gnuradio] Audio underrun when using Audio Sink

Well, it outputs the packets from the TUN device, as soon as they arrive there. Or is it something else you mean? I am using firdes.band_bass ( Frequency Xlating FIR Filter ) with - gain: 0.5 - sampling frequency: 20k - low cutoff frequency: 19k - high cutoff frequency: 20k -

Re: [Discuss-gnuradio] Audio underrun when using Audio Sink

At which rate is that tun_source running? and still: what's the specs on your band-pass filter? On 20.06.2016 20:32, Paul S wrote: > Hi Kevin & Marcus, > > thank you for your answers. After a while of testing I've got interesting > results. Firstly, even though it brought 100% CPU load on one

Re: [Discuss-gnuradio] Audio underrun when using Audio Sink

Hi Kevin & Marcus, thank you for your answers. After a while of testing I've got interesting results. Firstly, even though it brought 100% CPU load on one core, the packet encoder is not a problem as the underruns also occured without it. Anyway, thank you for your suggestion, I'll certainly look

Re: [Discuss-gnuradio] Audio underrun when using Audio Sink

Hi Paul, I'd like to second Kevin's notion that if anything is limiting your sample flow, it's the filter in the resampler. I don't know exactly what type of filter you chose, but I did the following (in python): from gnuradio import filter as gr_filter res =

Re: [Discuss-gnuradio] Audio underrun when using Audio Sink

On Jun 18, 2016, at 19:07, Paul S wrote: > Currently, I am trying to send data over ultrasound signals based on [1], > using the audio sink and several sources. The problem is that I get often > consecutive audio underruns (for several seconds straight). > This is my flowgraph:

[Discuss-gnuradio] Audio underrun when using Audio Sink

Hello everyone, I am quite new to this and to gnuradio so excuse me if I have some knowledge gaps. Currently, I am trying to send data over ultrasound signals based on [1], using the audio sink and several sources. The problem is that I get often consecutive audio underruns (for several seconds