I'm trying to use ffmpeg to add a silent audio track to a MOV file. I created a silent audio track longer than the video, and intend to use the -shortest option with ffmpeg. Using SoX v14.3.1, I run this to generate a wav file: sox -n -r 44100 -b 16 -c 2 -L silence.wav trim 0.0 60.000 # -n = Sox's null file # -r = sample rate # -b = bits per sample # -c = num of channels # -L = little endian # filename # trim - is an effect, args start and length.
The video for 'Lean On' was released in March 2015. Dj snake get low songs download.
Audio filter You can use ffmpeg to create the silent audio and combine it with a video in one step. This example will use the audio filter to generate stereo silent audio with a sample rate of 44100: ffmpeg -f lavfi -i anullsrc=channellayout=stereo:samplerate=44100 -i video.mov -shortest -c:v copy -c:a aac output.mov. channellayout=stereo:samplerate=44100 is the default, but I included it just as an example of how to use these options.
Ignoring existing audio If your video input file has audio that you want to ignore then use the option to override the default behavior: ffmpeg -f lavfi -i anullsrc -i video.mov -shortest -c:v copy -c:a aac -map 0:a -map 1:v output.mov.map 0:a -map 1:v can be translated as: from the first input ( 0) use the audio ( a), and from the second input ( 1) use the video ( v). Notes. These examples will the video so it does not get re-encoded (like a 'copy and paste'). It is always recommended to use a recent ffmpeg. Links to recent builds are on the page or you can refer to a step-by-step. If your ffmpeg is old, then you'll need to use -strict experimental to use -c:a aac.
Create video from image or convert image into video then add slient audio using ffmpeg. You can use the anullsrc audio source filter in ffmpeg. Example to make a 5.1 channel, 48000 Hz sample rate, 10 seconds silent video file from image: ffmpeg -loop 1 -i img002.jpg -f lavfi -i anullsrc=channellayout=5.1:samplerate=48000 -t 10 -c:v libx264 -t 10 -pixfmt yuv420p -vf scale=480:320 -y output.mp4 img002.jpg: Input image file -i anullsrc: Add silent audio -t 10: Number of seconds scale=480:320: Video resolution width=420 and height=320 -y: Overwrite existing output file output.mp4: Output file.
This app does exactly what it claims. The boot sound on my ascend mate 2 could not be disabled. The phone has to be rooted in order to disable the boot up sound because there was no option in settings to turn it off. It was very loud and very annoying.
Like other people have stated, why does everyone have to hear my phone starting up? This app is a lifesaver. It kills that's annoying jingle at startup and now I have nothing but the boot animation and a slight vibration on startup.
What a fantastic app. Thank you so much. Great on Samsung Tab S with Android 4.4.2 On the other hand sad that we need an app for it. Somehow hard to believe.
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Now since Google doesn't care about such a basic feature I am worried about an upgrade to Lollipop if I read some comments here. Same at some other good apps. Just would need the upgrade to get rid of this stupid write block to the SD card. Can't root since I still have warranty. Don't understand the people who develop Android and just create problems for the user. And it was clear to them what this SD card restriction under 4.4 will cause - funny? I don't think so!
Not if you are a user or an app developer.
TwoToneDetect is free for personal and noncommercial use by public safety agencies and organizations. If you’d like to use the program for commercial purposes, please. TwoToneDetect is a Windows (or Linux) program that interfaces with a radio receiver or scanner.
It uses the computer’s sound card to listen to the received audio and detect two-tone sequential paging sequences. This type of paging is commonly used for fire department alerting. Upon detecting known two-tone pages, the program will record dispatch audio and email that audio to a specified email address. Multiple tone sets and email addresses are supported. For information on a Linux version that can run on the $35 Raspberry Pi single board computer,.
Python TwoToneDetect##.pyc Steps to get up and running:. Download ffmpeg.exe from the internet and put it in the directory with TwoToneDetect. Download the Windows 32 bit static build from (Windows XP users will need an XP-compatible version from ). NOTE: The download is a compressed.zip file. Download game iso gta 5 untuk pc free.
You need to uncompress (unzip) the file. Once the file is unzipped, it will create a folder called ffmpeg-latest-win32-static. Inside that folder is another folder called bin, and inside the bin folder is ffmpeg.exe, which is the file you are after. Move or copy ffmpeg.exe into the TwoToneDetect directory. Run the TonesEditor program to set up your tone sets and distribution lists.
See the “Editing Tone Information” section below for more information. You can also manually edit the tones.cfg file using a text editor if you prefer. Run the program and click on the “Edit Config Info” menu. Set up the config items according to your needs. See “Starting and Configuring the Program” section below. Select the audio input and output devices you want to use from the main screen. Exit the program.
Restart TwoToneDetect Support & Troubleshooting If you have problems with the program you can check for answers or support. Editing Tone Information In order to tell the program what tone sets we want it to look for and act upon, we’ll use the TonesEditor program that is included in the download package.
Using this GUI editor you can add new A-B tones or Long tones, and edit existing tones. Be sure to click the “Save to tones.cfg” button before selecting a new tone to edit or changes will not be saved. The sections below explain what the different fields mean. If a parameter is optional, it can be left blank. Mandatory Parameters for Two-Tone (A-B format) pages:. Atone – Frequency (in Hz) of the first (A) tone in the two-tone sequence. Btone – Frequency (in Hz) of the second (B) tone in the two-tone sequence.
Atonelength – Duration of A tone (in seconds) that must be detected before the program will alert. Btonelength – Duration of B tone (in seconds) that must be detected before the program will alert Note: Setting Atonelength and Btonelength both to.6 should be a good starting point for most common two-tone paging formats. Adjust as necessary. Description – Description of the tone set. Avoid using special characters such as slashes, quotation marks, or punctuation.
mp3Emails – This is a list of email addresses that the program will send mp3 attachments to whenever a valid page is received for this tone set. To send to multiple email addresses, simply separate them with commas. Mandatory Parameters for Long Tone pages:. Longtone – Frequency (in Hz) of the tone. Longtonelength – Length of the time the program must see the long tone before alerting.
Set to a value shorter than or equal to the actual tone duration. Description – Description of the tone. Avoid using special characters such as slashes, quotation marks, or punctuation. mp3Emails – This is a list of email addresses that the program will send mp3 attachments to whenever a valid page is received for this tone set. Additional Optional Parameters for either page type:.
amrEmails – This is a list of email addresses that the program will send AMR format audio file attachments to whenever a valid page is received for this tone set. AMR format audio files can be played by most cellular phones when received as a text or multimedia message (MMS).
textEmails – This is a list of email addresses that the program will send a text-only email to whenever a valid page is received for this tone set. The email will not contain any information, it will just let the recipient know that a page has been received. This email will be sent immediately upon tone detection, prior to audio recording. recorddelay – Number of seconds that the program will wait to begin recording after a valid tone set is found. ignoreafter – Number of seconds that the program will ignore a tone set after it has been received. This is useful if a dispatch center normally sends multiple pages for the same call.
It can be used to prevent multiple email or text messages from being sent for the same call. alertcommand – This parameter can be used to point to a windows Batch file (.bat) or other executable file. The file that is specified here will be executed whenever the specified tone set has been detected but before the audio has been recorded.
As an example, a batch file could be created that plays a pre-recorded audio file when the page is received. postemailcommand – This parameter can be used to point to a windows Batch file (.bat) or other executable file.
The file that is specified here will be executed whenever the specified tone set has been detected and after the audio has been recorded. As an example, the can be used to upload the newly created audio file to an FTP server. Variable substitution will insert the current Tone Description in place of d, the mp3 filename in place of mp3, the AMR filename in place of amr, and the WAV filename in place of wav (all paths relative to program directory). excludefrom, excludeto, and excludeemails parameters – These three parameters are used together to prevent emails from being sent to certain addresses when a page is received during a certain time of the day. This can be used to prevent emails from being sent during daily test pages, or to only send pages for certain duty shifts. When these three parameters are used, the tone sets will still be detected, but if the time of day of the page falls between excludefrom and excludeto, the email will not be sent to the addresses in the exludeemails parameter.
Multiple email addresses can be specified by separating them with commas. This field will prevent emails from being sent to addresses in both the mp3emails and amremails parameters. playbackduringrecord – If set to 1, the program will play the page audio through the computer speakers (or other audio device as specified on the main program screen) while it is being recorded. If set to 0, it will not play the audio while recording. A note on sending pages to cell phones: To send the page audio to a cellular phone, you must send the email to the carrier’s Multimedia Messaging Service (MMS) email address, not the normal SMS (text messaging) email address.
For some carriers these two email addresses are the same, for others, they are different. For example, to send a normal text message to a Verizon phone via email you would address it to ##########@vtext.com, but to send a MMS message (containing a picture or audio file), you would need to address it to ##########@vzwpix.com.
A list of SMS and MMS gateways for different wireless carriers. Also, most phones will play AMR format audio files, while only some will play MP3 format audio files, so pick whichever works best for your phone/carrier. NEW (7/14/13): I am now able to offer remote hosting of tones.cfg files with a web editing interface. This system allows individual agencies to use a web interface to manage their own user distribution lists while an administrative user can edit all other information. See for more details. Note: If you are upgrading to v59 or later from v58c or prior, you may need to change your Btonelength and Atonelength (new), as the tone detection algorithm has changed. See for more information.
If in doubt, settings of Atonelength =.6 and Btonelength =.6 are a good place to start. Starting and Configuring the Program. Start TwoToneDetect.
Select the Audio Input and Output devices from the drop down menus. It’s best to use a line-in for the scanner input, but a microphone in can also work if set up properly in the Windows sound mixer. Use Windows sound mixer to adjust the input audio level, if needed. Note: On some newer Windows machines, an audio jack must be plugged in to the audio port before Windows will recognize the audio device.
Not having anything plugged in to your sound card may prevent TwoToneDetect from starting. Adjust the audio squelch level so that the audio level is under the threshold when no scanner audio is present, but above the threshold when scanner audio is present. You may find that tuning the scanner to a local weather station can help quickly find an appropriate squelch level.
This can also help you adjust the sound levels in the Windows sound mixer. Check the “Playback during record” box if you want the program to play the page audio through your computer speakers as it records it.
If you want the system to be completely silent, uncheck the box. Next, click the “Edit Config Info” menu item at the top of the screen. The following menu should appear. Configure the menu items as appropriate. Some users have reported that Gmail sometimes blocks their messages as spam, and they have to contact Google to get the account unblocked. Users have also found that it helps to have all of the email and MMS addresses that you’re sending to in your Google “Contacts” to help reduce the chance that it becomes marked as spam by Google. As an alternative, Yahoo mail has been tested to work with TTD, and the email service of your internet service provider may be another option.
If you can’t find a free email service that works reliably for you, feel free to about setting up an email server through twotonedetect.net for a small fee. Program Operation TwoToneDetect continuously checks the sound card input for audio. If the audio level exceeds a set threshold, the program measures the most dominant tone in the audio signal (even if it is not a true “tone”). If it sees a valid two tone or long tone page, it will start an alert thread that will record audio after the page, convert the recorded audio into AMR and MP3 format, and then send the audio as an email attachment. The program can also trigger external programs or scripts to run upon tone set detection. Remote Monitoring TwoToneDetect Mike Orlando of the has put together a Windows Batch file that can be used to automatically check to make sure that TwoToneDetect is running and responding, and if not, restart the program and/or computer that it’s running on.
The original code for the batch file can be found. An updated version that includes the capability to upload the log file to an FTP server can be found. Additional Resources Here is a that shows how to use Audacity to find tone frequencies from recorded audio files. User Map Using TwoToneDetect? Show us where!
Add your location to the map below by and signing in with your Google account. Edit the map to add your location. Or, just and I’ll add your location to the map!
Decide if you want the music to start automatically or play when you click. There are two basic options for setting when your music starts. You can either have the song play when you click the button or you can have the song play automatically in the background.
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There are two presets which allow you to quickly select one of these options:. If you want the song to start automatically and play in the background across all of your slides, select the 'Play in Background' option in the Playback tab. This will set the song to start automatically, continue playing when slides are changed, loop when finished, and hide the sound button. The song will start playing immediately when that slide is opened. If you prefer to click the button to start the sound instead, select 'No Style' from the Playback tab. The song will play when you click the audio button. You can change the look of the button using the Format tab.
This will let you design a button or import a picture to use instead. Make basic edits to the audio file. PowerPoint includes some basic audio editing tools that allow you to change where the song starts playing from, adjust the volume, fade in and out, and more. Select the audio object to open the Playback tab if it isn't already.
Add bookmarks to the track. When you hover over the audio object, you'll see a track time slider. Select a spot on the track and click the 'Add Bookmark' button to create a clickable bookmark at that point in the track. This will allow you to quickly jump to specific spots. Click the 'Trim Audio' button to cut out unnecessary parts of the song. Useful for songs that are too long, or that you only need a piece of. Use the sliders in the Trim Audio window to select the new starting and ending point for the song.
Use the Fade Duration options to set the fade in and fade out times. The longer the duration, the more gradual the fade will be. Use the Volume button to adjust the master volume for the song. Make sure to test the song before the presentation and adjust the volume accordingly so that you don't startle the audience.
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