[AudioI] read error

mark mvlambiase at gmail.com
Wed Jul 13 00:52:12 UTC 2022


I checked the 40-pin header, and was excited to see a bad solder joint at
pin 5, and I fixed a few, but all the joints look pretty OK under a
magnifying glass, and nothing has changed.

On Tue, Jul 12, 2022 at 8:32 PM mark <mvlambiase at gmail.com> wrote:

> So, this is all on Buster now, but looks just the same.
> The second sample did not error out, but delivered what seems like a
> not-empty but messed up file. (It does not seem to play)
>
>
> pi at soundbpi:~/Desktop $ arecord -l
> **** List of CAPTURE Hardware Devices ****
> card 0: audioinjectorul [audioinjector-ultra], device 0:
> bcm2835-i2s-cs4265-dai1 cs4265-dai1-0 [bcm2835-i2s-cs4265-dai1
> cs4265-dai1-0]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> pi at soundbpi:~/Desktop $ arecord -f S16_LE -r 48000 -c 2 -d 3 -D plughw:0
> test1.wav
> Recording WAVE 'test1.wav' : Signed 16 bit Little Endian, Rate 48000 Hz,
> Stereo
> arecord: pcm_read:2145: read error: Input/output error
> pi at soundbpi:~/Desktop $ arecord -f S32_LE -r 48000 -c 2 -d 3 test.wav
> Recording WAVE 'test.wav' : Signed 32 bit Little Endian, Rate 48000 Hz,
> Stereo
> pi at soundbpi:~/Desktop $ ll
> total 1340
> -rwxr-xr-x 1 pi pi  132344 Jul 12 14:20 CantinaBand3.wav
> -rw-r--r-- 1 pi pi   75044 Jul 12 14:45 file.wav
> -rw-r--r-- 1 pi pi      44 Jul 12 15:25 test1.wav
> -rw-r--r-- 1 pi pi 1152044 Jul 12 15:26 test.wav
>
>
>
> On Tue, Jul 12, 2022 at 8:10 PM mark <mvlambiase at gmail.com> wrote:
>
>> Thanks. My skills are, well, uh, yeah.  Let me check those solder joints.
>> No scope; no joy there.  I was worried this might be a
>> construction issue, but I have few tools/skills to check my work.
>>
>> Thank you.
>>
>> On Tue, Jul 12, 2022 at 8:03 PM Matt Flax <matt at audioinjector.net> wrote:
>>
>>> OK, I2C is working, the CPU can communicate with he audio codec IC. That
>>> means that the CPU can setup the registers.
>>>
>>> When it takes many seconds for the system to fail (on aplay or arecord)
>>> with something like  :
>>>
>>> arecord: pcm_read:2152: read error: Input/output error
>>>
>>> It means that the I2S bus has failed to clock. In this case you will
>>> want to interrogate the 40 pin header on the card, make sure it is
>>> cleanly soldered. Also if you have a cro handy, connect to the I2S bus
>>> lines and look for clocking and data. If you have any issues with this,
>>> look for dropped solder, dry solder joints or anything which would
>>> disrupt the signals.
>>>
>>> When you see errors like this :
>>>
>>> arecord: set_params:1407: Unable to install hw params:
>>>
>>> It means that ALSA couldn't run the *_hwparam_* functions in the driver.
>>> In this case the card can't do 44100 Hz sample rates, try to use plughw:
>>> instread of hw:
>>>
>>>
>>> Matt
>>>
>>>
>>> On 13/7/22 05:01, mark wrote:
>>> > I noticed some weirdness and decided to start with a fresh Bullseye
>>> > image.
>>> > After a full-upgrade I made the changes mentioned on the git page. The
>>> > devices show up when listed, but I cannot get the speakers or
>>> > microphones (on-board) to work. It seems like the device is seen but
>>> > not really set up.
>>> >
>>> > Thanks in advance for any help you can provide.
>>> >
>>> > aplay and arecord see the device:
>>> >
>>> > pi at soundpi:~ $ arecord -l
>>> >
>>> > **** List of CAPTURE Hardware Devices ****
>>> > card 0: audioinjectorul [audioinjector-ultra], device 0:
>>> > bcm2835-i2s-cs4265-dai1 cs4265-dai1-0 [bcm2835-i2s-cs4265-dai1
>>> > cs4265-dai1-0]
>>> >   Subdevices: 1/1
>>> >   Subdevice #0: subdevice #0
>>> > pi at soundpi:~ $ aplay -l
>>> > **** List of PLAYBACK Hardware Devices ****
>>> >
>>> > card 0: audioinjectorul [audioinjector-ultra], device 0:
>>> > bcm2835-i2s-cs4265-dai1 cs4265-dai1-0 [bcm2835-i2s-cs4265-dai1
>>> > cs4265-dai1-0]
>>> >   Subdevices: 1/1
>>> >   Subdevice #0: subdevice #0
>>> > card 1: vc4hdmi0 [vc4-hdmi-0], device 0: MAI PCM i2s-hifi-0 [MAI PCM
>>> > i2s-hifi-0]
>>> >
>>> >   Subdevices: 1/1
>>> >   Subdevice #0: subdevice #0
>>> > card 2: vc4hdmi1 [vc4-hdmi-1], device 0: MAI PCM i2s-hifi-0 [MAI PCM
>>> > i2s-hifi-0]
>>> >
>>> >   Subdevices: 1/1
>>> >   Subdevice #0: subdevice #0
>>> >
>>> >
>>> > But even though I can see them, I don't seem to know how to use them.
>>> > I get an error trying to play on card 0 that gives an interesting
>>> > error that may point to a config or software issue:
>>> >
>>> > pi at soundpi:~/Desktop/recordings $ aplay -D plughw:0,0 CantinaBand3.wav
>>> > Playing WAVE 'CantinaBand3.wav' : Signed 16 bit Little Endian, Rate
>>> > 22050 Hz, Mono
>>> > aplay: set_params:1407: Unable to install hw params:
>>> >
>>> > ACCESS:  RW_INTERLEAVED
>>> > FORMAT:  S16_LE
>>> > SUBFORMAT:  STD
>>> > SAMPLE_BITS: 16
>>> > FRAME_BITS: 16
>>> > CHANNELS: 1
>>> > RATE: 22050
>>> > PERIOD_TIME: (125011 125012)
>>> > PERIOD_SIZE: (2756 2757)
>>> > PERIOD_BYTES: (5512 5514)
>>> > PERIODS: (3 5)
>>> > BUFFER_TIME: (500045 500046)
>>> > BUFFER_SIZE: 11026
>>> > BUFFER_BYTES: 22052
>>> > TICK_TIME: 0
>>> > pi at soundpi:~/Desktop/recordings $
>>> >
>>> >
>>> >
>>> >
>>> >
>>> > On Tue, Jul 12, 2022 at 7:08 AM mark <mvlambiase at gmail.com> wrote:
>>> >
>>> >     It took a while (10s?) before.
>>> >     Now I get this immediately:
>>> >
>>> >     evices: 1/1
>>> >       Subdevice #0: subdevice #0
>>> >     pi at cam-09:~ $ arecord -f cd -d 10 --device="hw:2,0"
>>> /tmp/test-mic.wav
>>> >     Recording WAVE '/tmp/test-mic.wav' : Signed 16 bit Little Endian,
>>> >     Rate 44100 Hz, Stereo
>>> >     arecord: set_params:1407: Unable to install hw params:
>>> >     ACCESS:  RW_INTERLEAVED
>>> >     FORMAT:  S16_LE
>>> >     SUBFORMAT:  STD
>>> >     SAMPLE_BITS: 16
>>> >     FRAME_BITS: 32
>>> >     CHANNELS: 2
>>> >     RATE: 44100
>>> >     PERIOD_TIME: (125011 125012)
>>> >     PERIOD_SIZE: 5513
>>> >     PERIOD_BYTES: 22052
>>> >     PERIODS: 4
>>> >     BUFFER_TIME: (500045 500046)
>>> >     BUFFER_SIZE: 22052
>>> >     BUFFER_BYTES: 88208
>>> >     TICK_TIME: 0
>>> >
>>> >     This most recent one (after a reboot that changed the card $)
>>> >     laste the full 30 seconds and showed the mixer EQ at the bottom.
>>> >     That was pegged at 99% the whole time.
>>> >     I need to move the file to see if I can hear anything but it looks
>>> >     like it died the same way.
>>> >
>>> >     pi at cam-09:~ $ arecord --device="hw:2,0" -c2 -r 48000 -f S32_LE -t
>>> >     wav -V stereo -d 30 -v file_stereo.wav
>>> >     Recording WAVE 'file_stereo.wav' : Signed 32 bit Little Endian,
>>> >     Rate 48000 Hz, Stereo
>>> >     Hardware PCM card 2 'audioinjector-ultra' device 0 subdevice 0
>>> >     Its setup is:
>>> >       stream       : CAPTURE
>>> >       access       : RW_INTERLEAVED
>>> >       format       : S32_LE
>>> >       subformat    : STD
>>> >       channels     : 2
>>> >       rate         : 48000
>>> >       exact rate   : 48000 (48000/1)
>>> >       msbits       : 32
>>> >       buffer_size  : 24000
>>> >       period_size  : 6000
>>> >       period_time  : 125000
>>> >       tstamp_mode  : NONE
>>> >       tstamp_type  : MONOTONIC
>>> >       period_step  : 1
>>> >       avail_min    : 6000
>>> >       period_event : 0
>>> >       start_threshold  : 1
>>> >       stop_threshold   : 24000
>>> >       silence_threshold: 0
>>> >       silence_size : 0
>>> >       boundary     : 1572864000
>>> >       appl_ptr     : 0
>>> >       hw_ptr       : 0
>>> >     +#################################
>>> >     99%|99%##################################+ arecord: pcm_read:2152:
>>> >     read error: Input/output error
>>> >
>>> >
>>> >
>>> >     On Tue, Jul 12, 2022 at 1:56 AM Matt Flax <matt at audioinjector.net>
>>> >     wrote:
>>> >
>>> >         It looks like it should work.
>>> >
>>> >         The fact that ALSA/Linux finds the card and sets it up means
>>> >         that you
>>> >         have got I2C working.
>>> >
>>> >         Perhaps there is a clocking I2S bus issue ? How long does it
>>> >         take before
>>> >         it reports the error ?
>>> >
>>> >         Matt
>>> >
>>> >         On 12/7/22 15:34, mark via People wrote:
>>> >         > Excited to add audio to my Pi, and just finished assembling
>>> >         the boards.
>>> >         > I see the device listed with arecord -l.
>>> >         > But, when I go to capture there is a read error. Any
>>> >         suggestions on
>>> >         > how to troubleshoot appreciated.
>>> >         >
>>> >         > pi at cam-09:~ $ sudo arecord -l
>>> >         > **** List of CAPTURE Hardware Devices ****
>>> >         > card 0: audioinjectorul [audioinjector-ultra], device 0:
>>> >         > bcm2835-i2s-cs4265-dai1 cs4265-dai1-0
>>> [bcm2835-i2s-cs4265-dai1
>>> >         > cs4265-dai1-0]
>>> >         >   Subdevices: 1/1
>>> >         >   Subdevice #0: subdevice #0
>>> >         > pi at cam-09:~ $ arecord --device="hw:0,0" -c2 -r 48000 -f
>>> >         S32_LE -t wav
>>> >         > -V stereo -d 30 -v file_stereo.wav
>>> >         > Recording WAVE 'file_stereo.wav' : Signed 32 bit Little
>>> >         Endian, Rate
>>> >         > 48000 Hz, Stereo
>>> >         > Hardware PCM card 0 'audioinjector-ultra' device 0 subdevice
>>> 0
>>> >         > Its setup is:
>>> >         >   stream       : CAPTURE
>>> >         >   access       : RW_INTERLEAVED
>>> >         >   format       : S32_LE
>>> >         >   subformat    : STD
>>> >         >   channels     : 2
>>> >         >   rate         : 48000
>>> >         >   exact rate   : 48000 (48000/1)
>>> >         >   msbits       : 32
>>> >         >   buffer_size  : 24000
>>> >         >   period_size  : 6000
>>> >         >   period_time  : 125000
>>> >         >   tstamp_mode  : NONE
>>> >         >   tstamp_type  : MONOTONIC
>>> >         >   period_step  : 1
>>> >         >   avail_min    : 6000
>>> >         >   period_event : 0
>>> >         >   start_threshold  : 1
>>> >         >   stop_threshold   : 24000
>>> >         >   silence_threshold: 0
>>> >         >   silence_size : 0
>>> >         >   boundary     : 1572864000
>>> >         >   appl_ptr     : 0
>>> >         >   hw_ptr       : 0
>>> >         > arecord: pcm_read:2152: read error: Input/output error
>>> >         > pi at cam-09:~ $
>>> >         >
>>> >         >
>>> >         >
>>> >         --
>>> >         Checkout the community email list :
>>> >         https://lists.audioinjector.net/mailman/listinfo/people
>>> >
>>> >
>>> --
>>> Checkout the community email list :
>>> https://lists.audioinjector.net/mailman/listinfo/people
>>>
>>>
>>>
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