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camera_help_cc [2021/01/10 20:48] – Walter Schulzcamera_help_cc [2021/01/10 20:54] (current) – Walter Schulz
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 > Special task: HDR section! If you have experience with HDR workflow, preferable with Open-Source tools (but not restricted to), any input would be appreciated!\\ > Special task: HDR section! If you have experience with HDR workflow, preferable with Open-Source tools (but not restricted to), any input would be appreciated!\\
 >And what is the difference between Luma and Luma Fast? >And what is the difference between Luma and Luma Fast?
 +
 +====== Audio ======
 +
 +> Complete (18.02.2019). No pics for plugs, etc. here, because it's in-camera help and drawings for soldering doesn't help that much in this respect, IMO. 
 +
 +> And if Audio screen isn't visible this help text won't be able to tell users why. That's one reason I opted for this screen to be visible at all times.
 +
 +Manual audio controls.\\ If you do not see this screen check these conditions:
 +  * 50D: Nope, no way to make it happen! 50D doesn't support audio recording.
 +  * Your cam may have restricted audio menu after loading module MLV_SND.mo:\\ 1100D, 650D, 6D, 700D, EOS M, 100D, 70D, EOS M2, 1200D\\ The only menu option you will see with MLV_SND active:\\ - MLV Sound
 +
 +The options available differ a lot depending on your camera type.\\ Please check [[https://builds.magiclantern.fm/features.html#Audio|feature matrix]]
 +
 +
 +===== Analog Gain =====
 +
 +Gain applied to both inputs in the analog domain. Default is on and 23 dB.
 +
 +//Values://
 +
 +**0**-32 **dB** (values: 0, 10, 17-32 in 3 dB steps)
 +
 +Analog does a great job of boosting the signal while retaining a low noise
 +floor and hence, [[http://www.magiclantern.fm/forum/index.php?topic=8549.0|dynamic range.]] If you use an
 +external preamp, set this parameter as low as possible otherwise, set it
 +as high as possible without [[http://www.magiclantern.fm/forum/index.php?topic=11063.0|clipping]] (audio meters
 +should be green).
 +
 +
 +===== Digital Gain =====
 +
 +In-camera digital gain. Default is 0, 0, OFF
 +
 +//Submenu options://
 +
 +==== Left Digital Gain ==== 
 +0 to 36 dB
 +
 +==== Right Digital Gain ==== 
 +0 to 36 dB
 +
 +==== AGC ==== 
 +**OFF**/ON
 +
 +Applying digital gain in-camera is not recommended as any non-zero value reduces
 +audio quality and you can achieve the same effect with more control in
 +post, but it can serve as an evaluative tool on set. You can apply
 +digital gain in 6dB increments to the left and right channel
 +independently. AGC is auto mode and is applied only in digital domain.
 +It overrides digital gains, but you can still adjust analog gain.
 +
 +
 +===== Input source =====
 +
 +Mic configurations.
 +
 +//Values://
 +
 +**Internal mic** your camera's internal mic(s)
 +
 +**L:int R:ext**
 +
 +**External stereo**
 +
 +**L:int R:balanced** (internal mic on Left, external mic on Right from both external pins as balanced audio)
 +
 +**Auto int/ext** camera detects if a mic is plugged in. Int is dual mono, ext is stereo.
 +
 +Balanced audio allows for very long cable runs without interference. Usually
 +balanced mics have three pin XLR connectors and it is very easy to put
 +together an XLR to Canon mic input cable. Balanced allows us to use such
 +pro mics with our little Canons and this is a very welcome surprise for
 +audio guys. You can feed an [[http://www.magiclantern.fm/forum/index.php?topic=1944.0|external audio source]] into the
 +camera giving you the option of using higher quality mics, although this
 +is not [[http://www.magiclantern.fm/forum/index.php?topic=8836.0|straight forward.]]
 +
 +
 +===== Wind Filter =====
 +
 +Digital high-pass filter.
 +
 +//Values://
 +
 +**On or Off**
 +
 +Canon's audio controls have no effect, they are completely overriden by ML and
 +the wind filter has been known to mute external mics, so if you're
 +having that problem on an earlier build turn it off. [[http://www.magiclantern.fm/forum/index.php?topic=4234.msg27693#msg27693|To use or not?]]
 +Also see [[http://www.akm.com/akm/en/file/datasheet/AK4646EN.pdf|AK4646 datasheet p.34.]]
 +
 +
 +===== Mic Power =====
 +
 +Power for mics.
 +
 +//Values://
 +
 +**ON** input impedance is 2 kOhm.
 +
 +**OFF** input impedance is 30 kOhm.
 +
 +Required for internal mic and certain types of external mics, but it reduces
 +input impedance. This setting is always ON when input source is either
 +internal mic or L:int R:ext. See[[http://www.akm.com/akm/en/file/datasheet/AK4646EN.pdf| AK4646 datasheet p.31.]] and the Mic
 +power control thread. [[http://www.magiclantern.fm/forum/index.php?topic=2666.0|Results of audio tests with ML and Canon 550D, T2i.]]
 +
 +
 +===== Headphone Mon. =====
 +
 +Audio monitoring with headphones, using the A/V cable.
 +
 +//Values://
 +
 +**On or Off**
 +
 +To use audio monitoring, you need a special cable: your Canon A/V cable
 +with a RCA - 3.5mm jack adapter a dedicated cable from Sescom or you may
 +solder it yourself (you will have to cut your A/V cable). Mobile phone
 +cables will not work; even if the connector looks similar, it's not
 +identical. You must use the original cable which came with your camera.
 +For details, see Audio monitoring HOWTO on Vimeo group. Disable this
 +setting if you are using a SD monitor. This feature is not available on
 +600D/T3i.
 +
 +Tip: Before cuting/soldering or ordering a monitoring cable check [[https://builds.magiclantern.fm/features.html#Audio|feature matrix]] if this feature is available for your cam at all.
 +
 +===== Headphone volume =====
 +
 +Digital output gain for audio monitoring.
 +
 +//Values://
 +
 +**0-6 dB** in 2 dB increments.
 +
 +It does not have any effect on the internal camera speaker. For best
 +results, you should a pair of low impedance headphones, for example
 +Audio Technica ATH-M50 (38 ohms). With high-impedance headphones, you
 +may have to use a headphone amplifier like FiiO E5.
 +
 +
 +===== Audio Meters =====
 +
 +Display the input audio level.
 +
 +//Values://
 +
 +From -40dB to 0dB, meters become yellow at -12 dB and red at -3 dB. Audio meters are only displayed in movie mode.
 +
 +
 +===== Speaker Volume =====
 +
 +In-camera speaker.
 +
 +//Values://
 +
 +**1 to 5**
 +
 +
 +===== Beep, test tones =====
 +
 +Customize camera sounds.
 +
 +//Submenu options://
 +
 +==== Enable Beeps ==== 
 +ML uses beep tones for several events. Turn them off if you have to go silent.
 +
 +==== Tone Waveform ==== 
 +Sine tones of lower frequency might be not audible on the internal speaker. Use square. Always check with Test beep sound.
 +
 +==== Tone Frequency ==== 
 +Default is 1 kHz. Range from 55 Hz (A1) to 12 kHz. Human ears are considered to be most sensitive between 2 and 5 kHz.
 +
 +==== Play test tone ====
 +
 +==== Test beep sound ====
 +
 +
 +===== MLV Sound ======
 +
 +Only available when the [[#mlv_sndmo|MLV_SND]] module is loaded and active. See
 +[[#modules|Modules]]
 +
 +//Submenu options://
 +
 +==== Sampling rate ==== 
 +8 - 48kHz the basic quality of your audio, the higher the better.
 +
 +==== Trace output ====
 +ON or OFF
 +
 +When MLV Sound is ON, a separate WAV file is generated at the framerate
 +determined by your FPS setting in Canon Menu. When FPS Override is used,
 +only the framerate of raw video is affected, the WAV file will remain
 +either 24fps or 30fps depending on the FPS setting in canon menu. It is
 +not possible to playback mlv sound in-camera.
 +
 +
  
  
camera_help_cc.1610308117.txt.gz · Last modified: 2021/01/10 20:48 by Walter Schulz