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I'm trying to find as many of my old original mp3 recordings as I can, after accidently deleting them and losing them by Cut/Pasting to a fake USB device. They're irreplaceable, so I've been trying various recovery software. So far, I've used DMDE, R-Studio, Recuva, UFS Explorer, Active Recovery, Photorec, Hetman NTFS Recovery and a few others. I've recovered probably 70% of the files, which is great, but there are more there.
Can anyone recommend a recovery software that's particularly good at carving mp3 and wav files?
Also, is there any way that I could have a program run through all the data in a disk image and try to playing, as though it was an mp3 files? In other words, assume everything was mp3 and save/write everything that had the characteristics of an audio file?
Thanks!
I also found a text file from mp3val which recorded the first 20-20 chars of some of my files and although UFS Explorer can find these signatures on my disk if I open the disk as hex, not a single program can find them, even from carving. Is there a program that will let me input the hex locations of this data and pull the objects they are part of? I was unable to find about this in my research, so far.
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The .exe I'm building is currently recognized by Avast as "File might be dangerous". It is not a false positive because the antivirus software finally doesn't find any virus in it, but just an alarm saying that this file has been "rarely downloaded".
I've contacted Avast but they don't seem to offer a solution except sending them the .exe for whitelisting.
Things I have tried, but that didn't solve the problem:
Have proper resource.rc file in Visual C++, with details about the .exe: BLOCK "StringFileInfo", VALUE "CompanyName", "MyCompany\0", etc.
Use makecert, certutil, signtool as detailed in this answer: How do I create a self-signed certificate for code signing on Windows?
Things that won't work:
Add to local avast exclusion (I can't ask every customer to do this!)
Redo a "Submit file to Avast Lab for scan" for each new build of the .exe. It's not scalable to have to re-submit the .exe to Avast (and all other 50+ antivirus software!) for each new build.
Paying $200 per year for code-signing (it might work, but I don't find it fair to have to give a $xxx ransom per year just for being whitelisted)
Are there common solutions that can help to avoid "Rarely downloaded file / File might be suspicious" antivirus alarms?
Note: I've read How to prevent my .exe to be recognized as malware?, how can I make my software not to be discovered by antivirus?, but it did not really cover the topic here.
Note2: I've read these guidelines, etc. but it did not currently help.
It depends of what this exe going to do. I've seen these av balloons two times.
First when I've add some compiled assembler code into (signed?) exe file and another one happens when I'd deploy system wide hook to catch all keystrokes in the system while app is inactive (exe were not enough for it and there were own dll).
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Is there a way to record all the sound that is played on a Linux Machine using PulseAudio? E.g. like Stereomix in Windows.
I dont want a complete Program, I just need some entry point to start my researches. Somehow I do not find very much regarding this topic.
So if anyone has informations on this topic (of course this can be tips, hints or maybe open source programs that do this), please let me know!
I researched this exact problem yesterday, so I have some steps you can try. I was using Ubuntu 15.04.
Install pavucontrol, and run it.
Go to the "Recording" tab.
Run a command like this in a shell, arecord -f cd | hexdump -Cv | grep '0000 ', and you should see a new entry appear in the pavucontrol recording tab. You might see non-zero data if your microphone is enabled.
Run YouTube or something in the background to generate sound.
Click the drop-down item next to "ALSA Capture from" and switch 'Built-in Audio Analog Stereo' to 'Monitor of Built-in Audio Analog Stereo'. You should see non-zero data in the arecord session.
From there, its a matter of writing code to record audio using the ALSA api. You can use arecord as a reference.
The system (mine anyway) somehow remembers the "from" setting between invocations of arecord, even though the item in the Recording tab comes and goes.
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I store my school programming work on google drive. From home I just access the google drive file on my computer, but I can't do that from school.
Can anybody recommend an app for editing cpp files in google drive? Preferably free, poor college student and all that.
I found drivecode, but it doesn't seem to work with cpp files and on header files it's not doing any markup.
Neutron Drive seems like exactly what I need, but it's not free.
Alternatively, any suggestions on another cloud-based development platform that I could use would work too.
screw Google driver, for single files use
https://gist.github.com/
http://collabedit.com/
for large project as said above, start learning mercurial. later you will need it professionally.
In light of the comments under the question, I think the best option is actually to use a service like gitHub, mercurial, bazaar, or svn, because of the availability of version control in those platforms.
You might also want to try out Google Code, it's not quite as advanced as GIT and hopefully it's not blocked either. Also, you already have a Google account, so you won't have to make a new account for anything.
Google Code allows full editing capabilities online, but you can also create a repository using it and download your code when you're ready to compile. You may need to learn a little bit about it before you can start, but once you upload your code you can edit it all right there, and it also formats automatically, making it better than Drive.
If Google Code is in fact blocked, I would also suggest trying GIT or some other service, but they're a little more advanced. Google Code has served me well for simple projects in the past.
Go to http://code.google.com
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I have an unfinished MathML rendering library written in C++. I ceased development a few months ago due to lack of time. The library [still] uses the TrueType version (unsupported) of the STIX fonts beta [version 1.0 of the STIX fonts (OpenType Postscript format) has since been released].
Development of this kind of library is a HUGE undertaking and, in fact, requires a number of programmers/developers. In my case, I am doing it alone, and here's my question:
Does anyone of you know of any foundations/philanthropists who may be interested to fund my project in return for open sourcing the code?
The funding will serve as an incentive for me to finish the library - perhaps by taking a sabbatical :p - and, of course, as 'payment' for the intellectual property involved.
I've searched the web, contacted some [e.g., foundations, VCs, angels, etc.], but I either did not get a response (from VCs and angels) or was rejected (one reason is geography since these foundations support only US-based projects).
As an aside, when I search the web for MathML, the results are often outdated. I guess there's not much activity concerning MathML. Yet, I believe this library will be very useful not only to developers but also to anyone who uses math, especially students and teachers. It is useful for e-learning, can be used with desktop apps and web servers (Windows), makes it easy to insert images of formulas in PowerPoint documents, etc.
Any suggestions are most welcome. Thank you.
EDITS: I have finished this library finally without funding, although I don't rule out seeking one.
You can find my new site below with lots of sample formulas; click on the download link to download the SDK.
http://reformath.webnode.com/ (preferred for statistical reason)
http://reformath.weebly.com/ (please use the above link instead)
DON'T forget to provide some feedback - or donations. Thanks!!!!!
Since we've already got open source MathML (Firefox has had it for years) that mean you'd have to do something better than the existing OSS solutions. And at that point, why not work on an existing open source project?
So that leaves commercial apps that may want a closed library for MathML rendering. I would go after companies like the makers of MathCad, Matlab, or any other engineering software that may want to display equations neatly. You should have something that already works for some subset of the things you/they will want it to do. You should also turn yourself into a company before going to those places so they take you seriously and you can license it to multiple customers. Otherwise the most you're likely to get is a job offer where they'd like you to hand over what you've got (for free if they can get you to) and then work on it as an employee - which may be all you want if you love it and hate your day job ;-)
You should probably ask on www-math list, also if you ask there, we can list your application in the software implementations page
http://www.w3.org/Math/Software/
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I'm an Electronics and Telecommunications student, next to my graduation. I'm gonna work on a project that involves my knowledge about DSP, music and audio in general. I allready know all the basic mathematic instruments and all the stuff I need to manage it, such as FFT, circular convolution ecc ecc.
I want to learn C++ programming basically for one reason: it's very important in the professional world!!! And I think it's one of the most used to write applications working with audio, especially when it's about real time processing.
Ok, after this small introduction I would like to know first, which are the most used libraries to work with audio processing in c++?? I was longer looking on the web but i couldn't find a lo of working stuff. (I work under linux with eclipse CDT enviroment).
Then I would like to know if there are good sources to learn how to write some working code, such as for example how to write a simple low pass filter. Basically now i will not write real time applications, I would like to start from the processing of a WAV file, or even better an MP3 file, so basically on vectors of samples.
Let's say that basically for now I would like to extract the waveform from an audio file, and save it to a thumbnail or to a PNG image.
Ok, for now I think it's all I would need.
Any ideas, advices, libraries, books, interesting sources about that?
Thanks a lot in advance for any kind of answer.
Giovanni.
I would suggest for you to write your own WAVE file reader and writer in C++, without relying on external libraries. The WAVE format is fairly straight forward, at least if you only intend on supporting the most common wave files.
Then you'll have access to the audio data, which you can easily manipulate in C++. I would recommend starting by modifying the volume, the number of channels to calculating statistics on the audio. Creating a PNG of the audio waveform requires some more advanced C++ skills...
Checkout this link which will give you some information on the available (commercial and open source) audio editing softwares.
Some interesting open source audio editing tools which are written in c++,
Audacity
LMMS
Qtractor
Ardour
Rosegarden
C++ library for audio processing.
SndObj
The Synthesis ToolKit in C++
C++ Code and links related Filters and audio processing..
C++ code for Filter,Audio Processing
Code Guru,Low pass filter
I've used BASS with good results (there's a C/C++ API you can use).