Hot answers tagged playback
7
This is actually really straightforward given one caveat:
Your recording hardware and software needs to have a frequency response which includes the range you want (either very low or very high)
Almost all professional recording software will let you frequency shift - either directly, or by speeding up or slowing the playback of the waveform. Even free ...
6
To expand on Dr Mayhem's great answer:
It is not possible to hear a frequency that you cannot hear.
It is possible can transform a frequency that is too high or low to hear into one that you can, and you do that by shifting the recording's frequency as Dr Mayhem describes.
You won't be hearing the original frequency, but you'd be hearing a sound at the ...
5
This happens with interlaced video. Interlaced video is drawn to the screen in two passes, first the odd lines from top to bottom, then the even lines from bottom to top.
This is a legacy thing inherited from the days of good ol' CRT tubes when the dots on the screen was drawn using a beam; and to optimize the physical limitations of that the beam could not ...
4
Audio waves are additive, so if you play back the inverse of a waveform against the original waveform, they'll cancel out to nothing.
So if you have the exact instrumental, you can invert the waveform and play it against the original recording, which will mostly leave only the vocals intact. It's not the same as having the original tracks, since there won't ...
3
Sorry to say, there is no perfect way of doing this. The link you provided uses the same technique I was going to describe but this requires that you have the original and an exact instrumental copy. Even that technique is not perfect and will still have some background noise.
One piece of AWESOME software that does this with techniques that are far beyond ...
3
Give the Sony M10 a try. Battery life is insane, particularly on a pair of Eneloops.
The manual is available here.
I just ran a test on my M10 - after a power cycle, the M10 remembers which track you were playing, but not the position within the track. The Sony has very good battery life, so you could just slide the power button to "lock" mode and keep it ...
3
Try VLC or AvTech PlayLite (appears to be abandonware). However, from my cursory research, it seems that DV4 videos are supposed to be bundled with proprietary software (check this Bosch PDF, page 13), so if you're missing that, you might be out of luck.
3
If both Record and Reaper support MIDI sync from an external source, you can use virtual ports with MIDI Yoke (or similar), and then a separate application (such as MIDIOX) to send the play/stop parts.
This isn't Rewire though, so the loop start and end points won't work.
2
Although this is already answered I made a tutorial on this a while back also showing how you can do this in Ableton Live.
http://en.www.ali.dj/how-to-make-an-acapella-or-instrumental-version-part-1-the-phase-cancellation-method/
Here's a picture illustrating what Warrior Bob said:
2
The problems with seeking are typically in the video player and not in the videos themselves, so you may want to look at different video player. A video player should be able to seek to any frame in the video, regardless of format and the encoder settings used. It is also technically possible to play any video backwards, even though very few players support ...
2
Yes, that has to do with keyframes. Most players can only seek to a keyframe. Others will go to the prior keyframe and decode up to the point selected. Others will just play gibberish until the next keyframe. Having regular keyframes increases your file size, but also adds many more points a user can seek to in your video.
If you are referring to how to ...
2
1st, make sure you don't have any equipment or 3rd party programs that interfere with the audio on your computer because, more often than not, it is a problem with that instead of the audio on the computer itself.
I actually asked a similar question (which is specific to your question) about a third party program messing with Ableton (same as with ...
2
Two possibilities I can think of. First, if they are in-ear headphones (typically have some foam or soft plastic sleeve that looks like it could fit in to your ear) then they are actually designed to be inserted in to your ears. Improper insertion can result in bad sound transmission and very poor sound quality, particularly on the lower ends. It would ...
1
I enabled Deinterlace in VLC and the problem almost got solved, see the screenshot from the same frame, there is still jagged edges, but much better.
And I changed its deinterlace mode from the default "Blend" to something else the lines seems to disappear...
1
The reason it plays back in slow-motion is because you recorded it in slow-motion mode. From Kodak's web page (my emphasis):
720p at 60 fps—for fast action and super slow motion playback
Your computer have no problem playing back the video if CPU usage is just 30% and have a full frame rate of 60 fps.
What you need to change this is to re-time your ...
1
Sample rate or playback rate is just the speed at which your software or hardware reads through the audio buffer and plays back what it finds. Just adjusting the sample rate speeds up or slows down the rate at which the waveform is read, which effectively shortens or lengthens the waveform contained within.
Consider a 440 Hz Sine wave. If you play that sine ...
1
Windows Media Player by default will re-size the video to fit the screen. To get it back down to the actual video resolution you will need to press F11 to exit full screen mode.
If it is still not the correct size right click on the video and select 100% from the Video sub menu.
As for preventing the video player from resizing the video, I don't think ...
1
We use a Sony PCM-D50 at work and I can't recommend it enough. Sound quality is good enough for our engineering (automotive sound quality) use and the built quality is top notch. It's a bit more pricey than some of the others, but I would consider this "professional"-quality equipment.
1
I would go to VLC in the first instance. It's benefits include:
Great format support
Cross platform
Free
Here is a handy list of the formats supported; it indicates that it supports "AAC - MPEG-4 part3". This article on Wikipedia also gives a good list of alternative players that support either the encoding or decoding of MPEG-4 SLS.
1
Ok, so it turns out that after a large amount of research into error codes, the Error: e:31:23 means that there is a problem with the right hand side tape reel cog. It appears that the cog cannot move the spool, as it clicks a bit before displaying the error when I insert a tape. I think this can only be fixed by a specialist, but I included this answer to ...
1
Yes there are!
MIDI is a set of instructional codes to tell the synth what notes to play and when. There's a standard ("General MIDI", GM for short) that gives numbers to common instruments, so that the synthesizer can know that some notes for instrument X should be played with a grand piano sound, but instrument Y refers to a violin sound. I forget the ...
1
Yes, this is definitely possible. What you want to do is hook up that keyboard/synth via MIDI to your computer, and set the MIDI out to the MIDI that goes to the keyboard.
In XP, you can find this under Control Panel, Sounds and Audio Devices, the Audio tab, and down towards the bottom, MIDI music playback. Change the default device. Once you've done ...
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