Hack This! – 5D Mark II Audio Control Gain Disabled!

Canon Rumors
1 Min Read

From Cinema5D

Hax0red!
Hax0red!

If Canon isn’t going to do this stuff, others appear very motivated to do so.

“As an early goal, I have disabled the AGC for on the AK4646 audio chip that the 5D uses by overriding the sound_dev_task() at 0xFF856E60 to call audio_set_alc_off() at 0xFF856B14. The level is much too hot due to the wrong levels selected (it defaults to max gain?) but there is no shift in quiet scenes anymore. This is an easy first step that provides a proof-of-concept modification for the 1.0.7 firmware.

I can also log the audio levels as they are being sampled, which will make it possible to do on-screen level meters at some point in the future. My next step is figuring out how to add menus for the AGC disabling, then tackling the MVR_start_record() and LVAE_* functions.”

Read Here: http://www.cinema5d.com/viewtopic.php?f=14&t=2477

Hack in progress

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26 Comments
  • This guy Hudson is bad to the bone! I’ll PAY for a hack that gives me manual control. BRING IT ON!!!

  • Glad you made a post. Earlier when I posted this, I didn’t know how to get you the heads up on the hack news….

  • – Canon showing themselves as a face-less company (regarding to this matter), remaining in complete silence without any CLEAR word, but telling to be “listening to customers”… what kind of behaviour of a respectable company is that?

    They loose much not giving even an answer to what THOUSANDS of customers have requested to them.

    Customers are not married with a company, and attitudes like this only helps to drop loyalty and credibility.

    Japanese companies SHOULD listen more, watch more, and take care MORE of customer’s feedback and requests.

    Arrogance can be a VERY big mistake.

  • Totally agree, if there is one downside to Japanese companies it’s their arrogance. My company’s main competitor is Japanese and although they have some of the best products in the industry, they have never been able to become global because of their reluctance to adapt to local customer requirements in Europe or America.

    Canon’s a bit better then that, but they still have a lot to learn from the likes of Toyota.

  • Umm. Don’t buy the camera then. Whats there to be mad about?

    They aren’t forcing you to buy their cameras.

  • yeah, I don’t get this, first of all the 5D is never meant to be as a professional video recording camera, remember that Canon still must protect its video camera market, but autofocus would be great. Also do take note that the consumer always wants more more more, it will never end and if the company start following every of the customer wants and still keep it at the same price, the company will eventually make losses.

  • It’s that kind of arrogance that has led many people to buy Nikon. It’s that kind of arrogance that the people you just replied to are decrying as bad business.

  • When Canon did not give video people complained and when they did they complain for lack of manual control. When will this end?

  • Do your research JOHN … before you speak. You need to get up to speed with the topic … BTW, do you work for Canon? Or maybe you’re actually Chuck Westfall?

  • I wonder what the guys over at Canon R&D Digital Imaging are up to? Do they get paid to do nothing? If a third party patch comes up faster then Canons new firmware.. That is just.. SAD

  • Some people may think this is just a small group asking for something, but… the demand for this Firmware Update is HUGE; what is Canon thinking in ignoring it?

    Either way the manual control will be achieved.

    It would put Canon in a much better place if they (Canon) announce they are working on it and going to release it soon (because they have made a firmware update…)

    Are they waiting for Nikon to announce something and then follow them?

  • Nikon doesn`t provide manual video control either. And yet they`re not taking any flak for it. Their Live View implementation doesn`t even let you change ISO without leaving LV, nor does it offer exposure simulation. So yes, it would be nice to have more control in video mode, but it`s a first generation product and so obviously has it`s flaws. The 5D still has the best video of any DSLR and it`s the only video camera with a 24×36 sensor that you don`t have to take a mortgage out to buy.

  • Canon should keep quiet about it until they get the fix 100% right. Plus, I hate when companies make an announcement and a promise and then it takes longer then promised to get the new product/fix.

  • They don’t need to state a date or deadline for the release, but ignoring thousands of people interested and requesting it (by every way, everywhere, and at every event), it’s not a good attitude to the customers.

    A simple announcement would make things lot more clear.

    Even more, since they have already made a firmware update, so there wouldn’t be any reason why to hide that they are working on it and just testing to get it 100% ok, and then release it to their customers.

  • so – since Canon in the eyes of some (many, thousands) is supposed to do upgrades they never comitted to for the 5D – can someone ask them to please also get the 40D community video plus manual controls – and for the 450D and, and , and ?

    I guess I would ask for it as well if I had one – things for free are always nice. But I guess they are more focussed meanwhile on the 5D successor and the other models in the pipeline- which might or might not have this feature.

  • Nikon people are complaining about no manual control as well, just not as loudly because even with manual control the video on the d90 and d5000 would suck.

  • “I can also log the audio levels as they are being sampled, which will make it possible to do on-screen level meters at some point in the future.”

    Hey!!! Having the recording levels in a log side by side of a PCM audio (whatever the format is) could lead us to kind of “RAW audio” like “RAW image” format, so you can modify it later in kind of “SoundRoom”, like in “LightRoom”.

    Mmmmh… by the way… how about a “RAW video” for movie recordings like “RAW image” format having the exposure, gamma and other “automatic suggestions” logged to be later adapted in a forthcoming “MovieRoom”?

  • I am glad to hear something is going on. The video mode is helping photographers to get video sequences where they would’nt get video material. Why not manual control? CANON ARE YOU STILL SLEEPING?

    A videographer would buy a camcorder for his work. The Eos 5DMK2 isn’t in competition with camcorders.

    Please help us doing our work with the best tool available.

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