Re: [Discuss-gnuradio] usrp_wfm_rcv.py and audio underrun aUaUaU

[Mikael Johansson]

Jonathan
Thank you for the response.
Below is a print-out with the verbose flag set to true.

Regards
/Mikael

address@hidden usrp]$ ./usrp_wfm_rcv.py -f 97600000 -V 100 -O "plughw:0,0"
adc_rate: 64000000
Using RX d'board A: Basic Rx
usrp_rate: 320000
>>> gr_fir_ccf: using SSE
>>> gr_fir_fff: using SSE
audio_rate: 32000, options: plughw:0,0 
PCM name: plughw:0,0
Access types:
    MMAP_INTERLEAVED     YES
    MMAP_NONINTERLEAVED  YES
    MMAP_COMPLEX         YES
    RW_INTERLEAVED       YES
    RW_NONINTERLEAVED    YES
Formats:
    S8                   YES
    U8                   YES
    S16_LE               YES
    S16_BE               YES
    U16_LE               YES
    U16_BE               YES
    S24_LE               YES
    S24_BE               YES
    U24_LE               YES
    U24_BE               YES
    S32_LE               YES
    S32_BE               YES
    U32_LE               YES
    U32_BE               YES
    FLOAT_LE             YES
    FLOAT_BE             YES
    FLOAT64_LE           YES
    FLOAT64_BE           YES
    MU_LAW               YES
    A_LAW                YES
    IMA_ADPCM            YES
    S24_3LE              YES
    S24_3BE              YES
    U24_3LE              YES
    U24_3BE              YES
    S20_3LE              YES
    S20_3BE              YES
    U20_3LE              YES
    U20_3BE              YES
    S18_3LE              YES
    S18_3BE              YES
    U18_3LE              YES
    U18_3BE              YES
Number of channels
    min channels: 1
    max channels: 10000
    1 channels    YES
    2 channels    YES
    3 channels    YES
    4 channels    YES
    5 channels    YES
    6 channels    YES
    7 channels    YES
    8 channels    YES
    9 channels    YES
    10 channels    YES
    11 channels    YES
    12 channels    YES
    13 channels    YES
    14 channels    YES
    15 channels    YES
    16 channels    YES
Sample Rates:
    min rate:    4000 (dir = 0)
    max rate:      -1 (dir = -1)
      8000  YES
     16000  YES
     22050  YES
     32000  YES
     44100  YES
     48000  YES
     96000  YES
    192000  YES
audio_alsa_sink[plughw:0,0]: using S32_LE

** (python:27664): WARNING **: IPP request failed with status 1030

** (python:27664): WARNING **: IPP request failed with status 1030
FYI: No Powermate or Contour Knob found
baseband_freq: 0, dxc_freq: 30400000.0, residual_freq: -0.00596046447754, inverted: 0)
baseband_freq: 0, dxc_freq: 30400000.0, residual_freq: -0.00596046447754, inverted: 0)
audio_alsa_sink[plughw:0,0]: sample resolution = 32 bits
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address@hidden usrp]$

2009/1/9 Johnathan Corgan <address@hidden>

On Fri, Jan 9, 2009 at 12:59 AM, Mikael Johansson
<address@hidden> wrote:

> I am having a problem with audio underruns when running usrp_wfm_rcv.py
> I constantly get audio underruns.

> Could somebody please give me a hint on how to debug this issue further.

Edit the file /etc/gnuradio/conf.d/gr-audio-alsa.conf, and change the line

verbose=false
 to
verbose=true

Re-run your application and post the screen output here.

-Johnathan