<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[Topics tagged with microphone]]></title><description><![CDATA[A list of topics that have been tagged with microphone]]></description><link>http://community.onion.io/tags/microphone</link><generator>RSS for Node</generator><lastBuildDate>Tue, 19 May 2026 11:31:35 GMT</lastBuildDate><atom:link href="http://community.onion.io/tags/microphone.rss" rel="self" type="application/rss+xml"/><pubDate>Wed, 06 Jun 2018 21:02:13 GMT</pubDate><ttl>60</ttl><item><title><![CDATA[Cant record audio using USB microphone]]></title><description><![CDATA[<p dir="auto">I am trying to use a USB microphone but I keep getting a kernel crash when I try and run "arecord".</p>
<p dir="auto">root@Omega-8E8A:/# arecord -d 10 /tmp/test-mic.wav<br />
Recording WAVE '/tmp/test-mic.wav' : Unsigned 8 bit, Rate 8000 Hz, Mono<br />
[   59.064454] Kernel bug detected[#1]:<br />
[   59.068109] CPU: 0 PID: 1373 Comm: arecord Tainted: G        W       4.4.74 #0<br />
[   59.075434] task: 86090508 ti: 86094000 task.ti: 86094000<br />
[   59.080904] $ 0   : 00000000 00000001 00000002 00000002<br />
[   59.086222] $ 4   : 87377800 86b5f8f0 86b5f8f0 00004000<br />
[   59.091533] $ 8   : 00000018 80008c58 7719f000 00001000<br />
[   59.096846] $12   : 00006000 00100000 fffffffc 00004000<br />
[   59.102156] $16   : 87377800 00000008 87610280 86b67c00<br />
[   59.107468] $20   : 77198000 7719c000 00000000 00000004<br />
[   59.112777] $24   : 00001072 7710ce00<br />
[   59.118087] $28   : 86094000 86095df8 00000000 87032250<br />
[   59.123398] Hi    : 00000000<br />
[   59.126314] Lo    : 00000004<br />
[   59.129307] epc   : 87032160 snd_pcm_lib_default_mmap+0x30/0x48 [snd_pcm]<br />
[   59.136210] ra    : 87032250 snd_pcm_mmap_data+0xd8/0xe60 [snd_pcm]<br />
[   59.142560] Status: 1100e503 KERNEL EXL IE<br />
[   59.146818] Cause : 10800024 (ExcCode 09)<br />
[   59.150881] PrId  : 00019655 (MIPS 24KEc)<br />
[   59.154940] Modules linked in: pppoe ppp_async option iptable_nat w1_therm w1_gpio uvcvideo usb_wwan snd_usb_audio pppox ppp_generic pl2303 nf_nat_ipv4 nf_conntrack_ipv6 nf_conntrack_ipv4 ipt_REJECT ipt_MASQUERADE ftdi_sio cp210x ch341 xt_time xt_tcpudp xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG wire videobuf2_v4l2 usbserial usblp usbhid ums_usbat ums_sddr55 ums_sddr09 ums_karma ums_jumpshot ums_isd200 ums_freecom ums_datafab ums_cypress ums_alauda uinput spidev snd_usbmidi_lib slhc rfcomm nf_reject_ipv4 nf_nat_redirect nf_nat_masquerade_ipv4 nf_nat nf_log_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack iptable_mangle iptable_filter ip_tables hidp hid_generic hci_uart crc_ccitt cdc_acm btusb btintel bnep bluetooth snd_soc_simple_card snd_soc_ralink_i2s snd_soc_wm8960 snd_soc_max98090 videobuf2_vmalloc videobuf2_memops videobuf2_core hid v4l2_common videodev evdev snd_soc_core mt_wifi ralink_gdma virt_dma ledtrig_oneshot ledtrig_morse ledtrig_heartbeat ledtrig_gpio ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 nf_log_common ip6table_mangle ip6table_filter ip6_tables x_tables msdos snd_pcm_dmaengine snd_compress snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd_rawmidi snd_seq_device snd_hwdep snd input_core soundcore vfat fat ntfs configfs autofs4 nls_utf8 nls_iso8859_1 nls_cp437 regmap_i2c dma_shared_buffer ecb cmac mmc_block usb_storage sdhci_pltfm sdhci mtk_sd mmc_core leds_gpio ohci_platform ohci_hcd ledtrig_transient ehci_platform ehci_hcd sd_mod scsi_mod gpio_button_hotplug ext4 jbd2 mbcache exfat usbcore nls_base usb_common crc16 cryptomgr aead crypto_null crc32c_generic crypto_hash<br />
[   59.305020] Process arecord (pid: 1373, threadinfo=86094000, task=86090508, tls=771a9d48)<br />
[   59.313305] Stack : 77198000 7719c000 00000000 00000000 86b5f8f0 80099fcc 00000000 00004000<br />
87610280 00004000 000000fb 00000000 87610280 00000000 00000000 00000010<br />
00000020 80410000 00000001 86b5f9a0 86b5f9b4 86b5f9b0 77198000 000000fb<br />
87610280 00004000 00000001 00000002 00000000 00000004 86b67c00 8009a5cc<br />
00030002 803c0000 86090508 00030002 00000000 87675660 86b67c34 87610280<br />
...<br />
[   59.349438] Call Trace:<br />
[   59.351942] [&lt;87032160&gt;] snd_pcm_lib_default_mmap+0x30/0x48 [snd_pcm]<br />
[   59.358516] [&lt;87032250&gt;] snd_pcm_mmap_data+0xd8/0xe60 [snd_pcm]<br />
[   59.364562] [&lt;80099fcc&gt;] mmap_region+0x29c/0x544<br />
[   59.369253] [&lt;8009a5cc&gt;] do_mmap+0x358/0x3d4<br />
[   59.373609] [&lt;8008bcc0&gt;] vm_mmap_pgoff+0x70/0xb8<br />
[   59.378296] [&lt;80098a40&gt;] SyS_mmap_pgoff+0x8c/0xd8<br />
[   59.383078] [&lt;8000682c&gt;] syscall_common+0x30/0x54<br />
[   59.387843]<br />
[   59.389350]<br />
Code: 24020002  14620002  00000000 &lt;000c000d&gt; 3c028704  2442ce08  aca20048  03e00008  00001021<br />
[   59.399621] ---[ end trace 137b659b6512e81a ]---<br />
[   59.408245] Fatal exception: panic in 5 seconds^Z^C^X</p>
<p dir="auto">[   64.415824] Kernel panic - not syncing: Fatal exception<br />
[   64.423859] Rebooting in 3 seconds..</p>
]]></description><link>http://community.onion.io/topic/2959/cant-record-audio-using-usb-microphone</link><guid isPermaLink="true">http://community.onion.io/topic/2959/cant-record-audio-using-usb-microphone</guid><dc:creator><![CDATA[brolly759]]></dc:creator><pubDate>Wed, 06 Jun 2018 21:02:13 GMT</pubDate></item><item><title><![CDATA[Adding a microphone]]></title><description><![CDATA[I'm trying to build a project that takes an audio input. I took the advice from this how-to and bought a cheap USB sound card. I'm pretty sure mine has only mono input, which is fine because the input is going to be from a record player, but you might need to look to a robust model or a dedicated microphone input device if you want higher quality sound.
The next thing I need to figure out is how to capture the audio source and decode it to a file that can be played back. That I haven't yet figured out.
]]></description><link>http://community.onion.io/topic/2214/adding-a-microphone</link><guid isPermaLink="true">http://community.onion.io/topic/2214/adding-a-microphone</guid><dc:creator><![CDATA[Jordan Schnaidt]]></dc:creator><pubDate>Sun, 16 Jul 2017 14:12:46 GMT</pubDate></item></channel></rss>