Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
wiki:alsa_part2 [2013/02/11 07:41] – [Persistence] add /usr/local/sbin/alsactl restore aus9 | wiki:alsa_part2 [2018/10/04 20:22] (current) – [Other web resources and credits] aus9 | ||
---|---|---|---|
Line 135: | Line 135: | ||
The above help is not helpful for microphone or capture devices, these input devices need the SPACE BAR to activate or de-active. The default seems to be de-active. | The above help is not helpful for microphone or capture devices, these input devices need the SPACE BAR to activate or de-active. The default seems to be de-active. | ||
- | So I have made up a new image that might help newbies? | ||
- | |||
- | {{http:// | ||
I have hidden the mic sections below as most users tend not to use mics. | I have hidden the mic sections below as most users tend not to use mics. | ||
Line 283: | Line 280: | ||
and I have 2 sliders and 2 settings in my alsamixer. | and I have 2 sliders and 2 settings in my alsamixer. | ||
- | {{http:// | + | image to be updated later |
In above image, I have paired slider 1 with setting one and slider 2 with setting 2 so it reads\\ | In above image, I have paired slider 1 with setting one and slider 2 with setting 2 so it reads\\ | ||
Line 290: | Line 287: | ||
=====How to activate your mic===== | =====How to activate your mic===== | ||
- | If your alsamixer mic control does not dispaly the word CAPTURE above the bottom capture control, then press the **SPACE BAR** in alsamixer to unmute or activate the mic. Next, use the page up or down or arrow up or down to set the volume levels. So if active, you must see 2 " | + | If your alsamixer mic control does not dispaly the word CAPTURE above the bottom capture control, then press the **SPACE BAR** in alsamixer to unmute or activate the mic. Next, use the page up or down or arrow up or down to set the volume levels. |
TIP, distortion is more likely at max volume try somewhere between 80-90% and consider doing record and playbacks to confirm. | TIP, distortion is more likely at max volume try somewhere between 80-90% and consider doing record and playbacks to confirm. | ||
- | {{http:// | + | {{wiki:mic.jpg}} |
- | The mux setting is like a kind of mic amplifier and I suggest you do not use it unless with volumes maxed etc, you can not | + | The mux setting is like a kind of mic amplifier and I suggest you do not use it unless with volumes maxed etc, you can not hear sufficient volume. Note when raised mux is more likely to |
- | hear sufficient volume.\\ | + | |
- | Note when raised | + | |
If your alsamixer image has a slider and one named digital then you have an advantage over most sliders. The non-digital slider can be volume zero but kept active, and your mic volume is controlled by the digital slider. | If your alsamixer image has a slider and one named digital then you have an advantage over most sliders. The non-digital slider can be volume zero but kept active, and your mic volume is controlled by the digital slider. | ||
+ | TIP | ||
+ | If you have a headset mic and ear pieces use that to avoid getting speaker feedback through your mic. | ||
=====Volume guidelines===== | =====Volume guidelines===== | ||
As a general rule, never set volume for inputs at 100%. The amplifier called mux for my card only allows 0,50 or 100 amplification. And 50 and 100 cause too much distortion to even my ears to bear. | As a general rule, never set volume for inputs at 100%. The amplifier called mux for my card only allows 0,50 or 100 amplification. And 50 and 100 cause too much distortion to even my ears to bear. | ||
Line 342: | Line 339: | ||
Depending on whether you are using skype or video recording, you may need to save a backup of your mixer levels for that webcam. For problems with microphones see Forums, e.g. http:// | Depending on whether you are using skype or video recording, you may need to save a backup of your mixer levels for that webcam. For problems with microphones see Forums, e.g. http:// | ||
+ | =====Modems===== | ||
+ | If you happen to have a modem supported by alsa, then you may find some settings for it in alsamixer, showing as a distinct sound device, e.g. Off-hook and Caller ID. | ||
=====Other web resources and credits===== | =====Other web resources and credits===== | ||
TC maintainers for OSS and Alsa | TC maintainers for OSS and Alsa | ||
- | * -Jason W, Juanito, Curaga | + | * Jason W, Juanito, Curaga |
+ | * Moderator Rich for setup guide | ||