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• Strange sound behavior

  - by caarlos0

  First of all, sorry for the tittle. English isn't my native language, and I can't find a word to describe the strange behavior I'm getting here. In the most simple explanation, is like sound keeps going down and up again... Think in a kid with that old radios that have a circled volume button. Think like these kid keeps "turning" the volume button. That is the behavior I'm getting here. At first, I believed that it was a pulseaudio issue, but, it isn't. I followed the wiki part I think that should be my problem, but it didn't work. After that, as I'm using XFCE, I didn't really need pulseaudio, so I removed it and stays with a clean alsa, hopping that will fix my problem. Sweet mistake. It really looks like a kid looking for trouble. I believed it worked, and, suddenly, here is the same issue again. BTW: I have a full-upgraded testing system (yeah, I upgraded to testing hopping for new pulseaudio version which fix the issue), no pulseaudio at all, just xfce, started with startxfce. What can I do to fix this? It's extremely annoying... sometimes I just want to throw my laptop in the wall because of this. Any extra info you need, please, tell me. Thanks in advance -- EDIT: My alsamixer is like this: And here is a video with the sound behavior.

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• Any free tool to change color of an image

  - by n179911

  HI, Is there any tool which can easily change color of an image? I heard of gimp. But I can't figure out how to use it to change color of an image (e.g. change the color from white to blue).

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• Notification area balloon tip pop sound in Windows 7

  - by Worm Regards

  When I was using Windows XP, there was a distinct sound when an application showed a balloon tip in the notification area (aka system tray). Unfortunately, I didn't look any deeper into it. Now Windows 7 has this behavior disabled by default and I do not know how to configure it. Discovered the name of sound file used to accompany tray balloon tips in Windows XP Windows XP Balloon.wav More clues: interesting registry key is HKEY_USERS\XP Registry Hive\AppEvents\Schemes\Apps\.Default\SystemNotification\.Default Default value is %SystemRoot%\media\Windows XP Balloon.wav So, the System Notification event label appears to be correct, but tray balloons are silenced elsewhere.

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• How do I batch change the date taken information in EXIF data?

  - by Eugene M

  I use F-Spot to manage my images. For one set of images, the dates somehow got messed up and they all are marked as September 1st 2007. I'd like to change the date taken information to a different date. How can I do this?

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• FM Transmitter for the Home

  - by greggannicott

  After asking this question regarding piping music through my home I'm looking to buy an FM transmitter. I'd like to connect it to my home pc (ie. into the speaker port), and I'd then control the output with my iPhone (ie. using Apple's Remote software). The problem is, given that almost every FM transmitter is advertised to be used in the car (ie. an iTrip) it's proving very tricky knowing which one would be ideal for the home. First, has anyone tried this? Did it work ok or was there simply to much interference for it work. Secondly, if it did work ok, can anyone recommend a reasonable transmitter? For what I need it seems like an ideal solution, so given that I'm struggling to find information regarding it I'm starting to believe it's not as ideal as it first seems. Thanks in advanance.

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• Force Windows to output only mono sound

  - by J. Polfer

  So, the 'right' half of my pair of headphones broke (the transducer+wire are fine, but the earpiece broke on the headband and so the earpiece won't sit over my ear). So now the right channel is being broadcast to my cube neighbors when I wear my headphones. Yes, they look very silly. Is there a way to ensure, in Windows XP (or Windows Media Player), that all stereo sound is downmixed to the left channel only (ie, in mono) so my neighbors don't hear my music? I know that I can setup the mixer to set the balance to 100% left, but information in the right channel won't be heard.

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• Preserve embedded album art when converting from .flac to .ogg

  - by Profpatsch

  I want to convert my archived .flac library to .ogg for daily use. Using find ./ -iname '*.flac' -print0 | xargs -0 -n1 oggenc -q6 on the root music folder and then deleting every .flac (having copies of them in archive) seems straight forward, after trying it with one file it worked and all of the tags were transfered, too, except for one: Embedded album art! I always prefer emedded covers over folder images, since I have some albums with varying covers. One possible solution is discussed here, but the script only works if the image is already extracted: Embed album art in OGG through command line in linux One possible solution I thought about was extracting album art from every song (not every song has one, though, and some even 2 or 3!), temporarily saving it and then using the script to include it into the finished .ogg. But then I want to increase the number of processes xargs runs simultaniously to save time, so the temp images need to have a distinct name. Is there a (linux) program that knows how to handle this? Or is there a finished script floating around somewhere? It would be nice if oggenc supported adding embedded coverart and it really is a shame, since these two formats should (in theory) share the same tag format. Edit: 15 days and noone even tries to answer. It’s funny, most of my questions don’t get answered. Too hard? Wrong SE site?

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• What can I do to enhance MacBook Pro internal mic sound quality in iMovie?

  - by gaearon

  After using MacBook for two years, I bought 17'' MacBook Pro. I'm pretty happy with it, performance and all, but I also was going to record some music videos for YouTube. I play guitar and sing. However I was extremely disappointed with the sound quality that comes by default. I'm 100% sure my 13'' MacBook mic was much better at recording music and singing. Currently mic can't event handle acoustic guitar, outputting sound you'd think was recorded 5 years ago in ARM format on a Nokia phone on a loud concert. It totally feels like some lame filter is cutting low and high frequencies. I want to know what settings (visible or hidden) in iMovie or Mac OS itself I might want to tweak in order to get my MBP mic record clean sound.

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• How do I disable microphone volume auto-adjusting?

  - by balpha

  My coworkers started yelling at me today because apparently I started screaming in their ears during a Google hangout. And sure enough, when I go to the Microphone settings dialog, I can see the level being auto-adjusted constantly; sometimes way too high. I don't think this has happened previously; at least nobody ever complained. Can I find out who is doing that auto-adjusting, and more importantly, can I turn it off? I couldn't find any related setting in the recording device settings. I'm using Windows 7 64bit, and (I'm mentioning this because the theory has come up that it may be related) I don't have Skype running.

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• Capture documents in bitonal, or grayscale then downsample

  - by Jason R. Coombs

  I'm about to embark on a document archival process. I'm going to spend a lot of good money to archive some paper (actually microfiche) to TIFF images. I have a choice of 300-dpi bitonal (2-bit, black/white) or 300-dpi grayscale (8-bit). Cost is the same for either format. Data volume (and thus image size) is not a factor. It seems to me that the grayscale, since scanned at the same resolution as the bitonal, would always contain more information and could always be downsampled to the equivalent bitonal image. Are there any downsides to selecting grayscale, and then later downsampling to bitonal if desired? In other words, is it possible that the scanning software will perform a more accurate (or more legible) representation than a grayscale image converted to bitonal?

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• How to reliably run a batch job every 5 seconds?

  - by Benjamin

  I'm building an application where the sending of all notifications (email, SMS, fax) will be asynchronous. The application will write the notifications to the database, and a batch job will read these notifications and send them with the appropriate transport. I was first reading at ways to run cron faster than the minute, and realized this was a bad idea. The batch scripts are written in PHP, and I guess that writing a proper daemon would be quite an overhead (though I'm open to any suggestion, as PHP car run indefinitely as well). What I have in mind is a solution that would: Run the PHP script every 5 seconds Check that the previous run has finished, or abort (never 2 concurrent batches running) Kill the script if live for more than x minutes (a security in case it hangs) Start with the system (if a reboot occurs) Any idea how to do this?

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• How can I lower the volume of my USB headphones?

  - by Jay Bazuzi

  Yes, I really am asking how to turn down the volume. But first, some more detail: My headphones are http://www.edimensional.com/product_info.php?cPath=22&products_id=122 They are really loud. I usually have to keep them on the lowest setting. If the source material is louder than average, I have to lower the output volume in the player software. Is there a way to can adjust the Windows 7 volume settings so that my normal listening volume is around 50% instead?

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• Using ffmpeg to cut up video

  - by Neil

  I am using ffmpeg like this e.g.: ffmpeg -i input.wmv -ss 60 -t 60 -acodec copy -vcodec copy output.wmv to cut out a section of a large file. The -ss part works fine but the -t is ignored. That is, it correctly removes the first -ss seconds but then just keeps going to the end of the input with the copy. Is there a way to use ffmpeg to cut off the end of a video without recoding it?

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• Hitting the ctrl button lowers my volume

  - by Cassandra

  I have tried googling this and no one else seems to either have this problem, or find it to be a problem, but it is very annoying to me. Everytime I accidentally hit my ctrl key by itself on my keyboard (I am using windows 7) my volume automatically lowers to a very low volume and then I can't hear anything. It's very annoying whenever I am on a game and/or on skype and I accidentally hit ctrl and then I can't hear anything or anyone!! How can I turn this feature off?

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• How can I listen to FM Radio streaming without connecting to the internet?

  - by Vicheanak

  Many phones has the functionality to listen to FM radio without connecting to the internet. Just wondering that how can I do this on a computer? Please give me some advices, thanks a lot. Sorry guy I understand this question is not programming related. For a computer I mean a notebook which already has the wireless and Bluetooth, and these two combination shall be able for a notebook to perform this functionality.

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• Is there a Vista 64 bit alternative to Noteburner?

  - by Gaël Marziou

  I was an happy user of Noteburner on XP 32 bit but then I upgraded to Vista 64 bit. I contacted their support and they confirmed it does not work but they don't have any date for a new version.

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• How do I make my "volume up" more powerful in Win7?

  - by joon

  My volume up button raises the volume by 1%. Its also not a button, it's a weird 'touch' thing which is really really terrible. If I want to lower the volume, I have to awkwardly rub it for a while. If it were to decrease by 5% or 10% it would be a lot better. Can this be set somewhere in Windows/Keyboard settings? I got close to a solution with Autohotkey, where I could do this: a::Send {Volume_Up 5} which would send the volume up command five times, however when I assign it to the volume key, it forms an endless loop since the Send command sends Volume_Up and parses it at the same time. Update: I ended up with this script: $Volume_Up::VolumeUp() $Volume_Down::VolumeDown() VolumeUp( ) { Send {Volume_Up 6} SoundBeep, 750, 50 } VolumeDown( ) { Send {Volume_Down 6} SoundBeep, 750, 50 }

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• TIF opens via IE, but not within a page

  - by tsilb

  I have a picture: http://www.kconnolly.net/Gallery/Panoramas/Mountainscapes/DSCN2049_stitch_sm.tif Which loads fine when I paste it into my address bar. However, when I embed it within a Page, I get a broken image icon. However, all browsers treat it as a download. Conversely, this image, which was made the same way, works fine when I embed it within a Page. Browsers treat this as a Document and not as a Download: http://www.kconnolly.net/Gallery/Panoramas/Mountainscapes/DSCN2060_stitch_sm.tif Why is that?

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• Limit PulseAudio volume to prevent overdrive

  - by el.pescado

  Is it possible to limit maximum volume in PulseAudio? Currently, PulseAudio sets PCM channel too loud which results in distorted sound. I use aumix to turn volume down, but whenever any other sound is played (IM notification etc), PA plays with knobs, turning master volume down and PCM up. aumix ++++++++++++++++++++O+++++<Vol ++++++++++++++++++++O+++++ Pcm ++++++++++++O+++++++++++++ becomes: aumix ++++++++++++++++O+++++++++<Vol ++++++++++++++++++++++++O+ Pcm ++++++++++++O+++++++++++++ I use OpenSUSE 11.2, pulseaudio 0.9.21, ALSA 1.0.21 and ALC889A sound codec.

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• Static noise coming from my laptop

  - by joanna

  Replaced motherboard; speakers; put in an additional fan; but this did not stop the static noise. This was done by inhouse tech. support from Sony. If i turn my speakers mute; the sound is still there! Can't hear it through headphones. I was told it is feedback noise! Now I'm suppose to send my $2,000.00 computer through the mail to get fixed? I'm terrified it'll come back in terrible condition during the travel time? Help?

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• Looking for a chat protocol which:

  - by marcusw

  Has easy to use clients which will run on both Windows and Linux. Has a server which I can run myself on Linux (preferably easy to set up). (optional) Supports duplexed voice and video with minimal hassle. Is open source/free software. Is there a protocol that fulfils these requirements?

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• PNG Compression

  - by T Pops

  At work, on certain projects I have to manage a lot of images. Most of the time PNG files work the best for what I'm doing. With such a huge amount of images, I've tried using PNG compression with PNG Gauntlet but sometimes the file doesn't really change and sometimes PNG Gauntlet reports it would've made the filesize bigger! Am I just maxing out the compression or is there something more I can do?

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• LAME: Switch sample rate of file without reencoding?

  - by TK Kocheran

  Is it possible to resample an MP3 file to a different rate (44.1) without doing a reencode? I have a few MP3 files that are at 48 and I need to switch 'em to 44.1, and I don't want to have to reencode my files to do so, as I'll lose quality. The source files are at CBR 320 and at 48kHz. Can this be done? The current way I'm doing it is using the following command: lame -b 320 -q 0 --resample 44.1 input.mp3 output.mp3 Is there a better way to do this?

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• Headphones stopped working in Windows (working fine in other OS)

  - by arnab321

  All of a sudden, my headphones stopped working with windows 8 in my laptop. Sound plays fine through built in speakers. Its not a problem with the hardware, because, I dual boot ubuntu and sound plays fine in Ubuntu. These are the things I have tried: - Restarting and blah blah. Restarted 20 times i think, alternating windows and ubuntu. - Uninstalled and reinstalled Realtek drivers. - Troubleshooting from control panel (it says "coudnt identify problem") What might be the problem?

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• Read non-blocking from multiple fifos in parallel

  - by Ole Tange

  I sometimes sit with a bunch of output fifos from programs that run in parallel. I would like to merge these fifos. The naïve solution is: cat fifo* > output But this requires the first fifo to complete before reading the first byte from the second fifo, and this will block the parallel running programs. Another way is: (cat fifo1 & cat fifo2 & ... ) > output But this may mix the output thus getting half-lines in output. When reading from multiple fifos, there must be some rules for merging the files. Typically doing it on a line by line basis is enough for me, so I am looking for something that does: parallel_non_blocking_cat fifo* > output which will read from all fifos in parallel and merge the output on with a full line at a time. I can see it is not hard to write that program. All you need to do is: open all fifos do a blocking select on all of them read nonblocking from the fifo which has data into the buffer for that fifo if the buffer contains a full line (or record) then print out the line if all fifos are closed/eof: exit goto 2 So my question is not: can it be done? My question is: Is it done already and can I just install a tool that does this?

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