They are both small samples of the original. Here is a sample of what I did (I presume no one is going to protest me posting these links. The warbling/tremelo wavering is prominent in human voices, though. There is a rapidly rising whistle sound at the beginning of both clips below which seems to not suffer from the warbling. Smaller stair steps would equal less warbling. The only way to overcome this would be to use higher frequency sound samples, I mean samples per second, as in MD at 32KHz, CD at 44.1 KHz, DAT at 48 KHz, etc. They are kind of like audio stair steps, best I can figure.
However, if I go through rapid pitch changes, the sound samples that are being duplicated are going to produce warbles. I haven't fully followed up on this, but if I sing slowly changing pitch and then use audacity to stretch out the audio, I think it would be fine. I think what is happening is the result of changing pitches. I thought maybe audacity was just doing a poor job, so I downloaded a sine wave file and tried stretching it. The audio gets warbled in the process of stretching it out. I have found one seemingly intractable problem.
Now you'll have your original video stretched out to double its length. avidemux cannot change it freely.Ĩ) Save (give incremental name - OhMikey1.2.doublefps.mp4, in my case)ĩ) Close and Open file just created (OhMikey1.2.doublefps.mp4)ġ0) Video - Frame Rate - cut in half (59.940 to 29.970)ġ1) Audio - select stretched audio from 2b). Check "Two-pass".ĥ) "Filter" Resample fps (from 29.970 to 59.94 in my case)Ħ) Audio - don't worry. Match as close as possible, in my case)Ĥ) Check "Configure". one hour processing for 66minutes of mp3 on my 3GHz system (tempo change not possible in Linux version as of summer 2008))ģ) Change Video from "Copy" to matching (MPEG-4 ASP (Xvid4).
#Avidemux slow motion windows
Here are my steps (I do still have to use Windows for part of this, but that issue will resolve itself soon): I used avidemux and audacity to slow down the video. It has been on my list of things to do, but I now have a different solution to my problem. Īs I'm mostly running Linux, I have not installed avisynth. Thanks for this, IanB, and I'm sorry to be so slow in following up on my question. Keys: linux fast audio speak quickly too quickly speaking
#Avidemux slow motion how to
So, can anyone here give me suggestions as to how to play this video at other speeds? And since it is mostly this one video I want to play slow, is there a way to transcode it to always play slower in any player - to basically double the file size rendering every video frame twice while doing something analogous to the audio? I don't have Vegas Video, Premiere, or any other big commercial video editing apps installed now.
#Avidemux slow motion Pc
I am mostly using linux (ubuntu), but I do have a Windows XP PC available as well. I originally asked this question here at (), but they advised me to try doom9 and perhaps avisynth. Either this control is a specialized feature that is not widely supported, or I'm using the wrong search terms, "slow motion", "pitch change". I remember WinDVD or PowerDVD had this feature years ago, but I cannot find out much about it on any player now. I want to play it at half-speed - the video and the audio both slowed down, with no pitch change, so I can read the subtitles and understand what is being said. I have a particular video, "OH! Mikey" (wikipedia ()), that has very fast spoken Japanese with English subtitles.
0 kommentar(er)
