On 23/06/10 18:49, James Courtier-Dutton wrote: > On 22 June 2010 13:58, Sid Boyce<sboyce@xxxxxxxxxxxxxxxx> wrote: >> I have an application using the on-board sound card mic which should send >> it's data to the USB card for relay to a Sofweare Defined Radio as 2 >> quadrature signals digital (I/Q) for transmission. >> On the receiving side it can take data from the Radio at up to 192K sample >> rate --> program --> Speaker on the on-board sound card - that works fine. >> Transmit fails, dmesg output with 48K sample rate set is:- >> [509686.177169] ALSA sound/usb/clock.c:214: 6:2:3: endpoint lacks sample >> rate attribute bit, cannot set. >> [509686.187920] ALSA sound/usb/clock.c:214: 6:2:1: endpoint lacks sample >> rate attribute bit, cannot set. >> [509686.266905] ALSA sound/usb/mixer.c:2051: status interrupt: c0 0e >> [509686.330901] ALSA sound/usb/mixer.c:2051: status interrupt: c0 0e >> [509686.353775] ALSA sound/usb/clock.c:214: 6:2:7: endpoint lacks sample >> rate attribute bit, cannot set. >> [509686.394898] ALSA sound/usb/mixer.c:2051: status interrupt: c0 0e >> [509686.458886] ALSA sound/usb/mixer.c:2051: status interrupt: c0 0e >> [509686.522874] ALSA sound/usb/mixer.c:2051: status interrupt: c0 0e >> [509823.078594] ALSA sound/usb/clock.c:214: 6:2:3: endpoint lacks sample >> rate attribute bit, cannot set. >> [509823.091571] ALSA sound/usb/clock.c:214: 6:2:1: endpoint lacks sample >> rate attribute bit, cannot set. >> [509823.146811] ALSA sound/usb/mixer.c:2051: status interrupt: c0 0e >> [509823.202679] ALSA sound/usb/clock.c:214: 6:2:7: endpoint lacks sample >> rate attribute bit, cannot set. >> [509823.210807] ALSA sound/usb/mixer.c:2051: status interrupt: c0 0e >> [509823.274792] ALSA sound/usb/mixer.c:2051: status interrupt: c0 0e >> [509823.338782] ALSA sound/usb/mixer.c:2051: status interrupt: c0 0e >> [509823.402783] ALSA sound/usb/mixer.c:2051: status interrupt: c0 0e >> Regards >> Sid. >> -- > > This device uses a global clock rate according to the data sheets. > So, record rate must equal playback rate. > sample_rate = 48000 # ADC hardware sample rate in Hertz receive from the radio. name_of_sound_capt = "hw:2" # E-MU 0404 USB audio as IQ capture (Receive) name_of_sound_play = "hw:0" # HDA Intel on-board to Speakers. channel_i = 1 # Soundcard index of in-phase channel: 0, 1, 2, ... channel_q = 0 # Soundcard index of quadrature channel: 0, 1, 2, ... # TX I/Q Generation for Softrock name_of_mic_play = "hw:2" # E-MU 0404 USB audio for IQ output sent to the Radio for transmit (Mic --> program --> E-MU --> transmitter). mic_playback_rate = 48000 mic_play_chan_I = 1 mic_play_chan_Q = 0 microphone_name = "plughw:0" # HDA Intel on-board sound mic_channel_I = 0 # Soundcard index of mic audio channel mic_channel_Q = 1 # Soundcard index of ignored channel mic_sample_rate = 48000 # Microphone sample rate in Hertz mic_max_sample = 25535 add_imd_button = 1 All sample rates set to 48K. Regards Sid. -- Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support Specialist, Cricket Coach Microsoft Windows Free Zone - Linux used for all Computing Tasks ------------------------------------------------------------------------------ ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
