It's me again. I just found out that the audio playback is affected by this problem too. Maybe this can serve as a hint. Regards, Christian -----Ursprüngliche Nachricht----- Von: alsa-devel-bounces@xxxxxxxxxxxxxxxx [mailto:alsa-devel-bounces@xxxxxxxxxxxxxxxx] Im Auftrag von Fischer, Christian Gesendet: Mittwoch, 10. Januar 2018 11:31 An: alsa-devel@xxxxxxxxxxxxxxxx Cc: 'Takashi Iwai' <tiwai@xxxxxxxx>; 'Mark Brown' <broonie@xxxxxxxxxx>; 'Liam Girdwood' <lgirdwood@xxxxxxxxx> Betreff: ASoC: sgtl5000: recording issue at 8 kHz with fsl-imx28 Hello guys, trying to record from a SGTL5000 with 8 kHz sampling rate gives a very bad audio quality. All other sampling rates working fine. Initially posted at NXP forum: https://community.nxp.com/message/975131 Tested with imx28, sgtl5000 and Kernel 4.14.12. I've attached a recording with 8 kHz, capture-vol was 67, mic-gain 33, AVC-off and Capture-ZC off. Recorded with "arecord -D "hw:0,1" -t wav -f S16_LE -c 2 -r 8000 test.wav". Sounds like there are missing samples.. The microphone is powered from mic-bias and decoupled with a 100nF capacitor. Can anybody help me? Thank you guys! Kind regards, Christian Fischer _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
