As we know iPod can only support MP4 and H.264 format videos. So most of time we need to decode our video or DVD video if we want to put them into iPod. Then here is the problem, what is the best setting of resolution and bitrate when we convert video/DVD for iPod?It is a little hard for you? Try easy solution here.
What is resolution and bitrate?
Resolution here means the level of information on a display device. Most of time it is about the video size, like 16:9 4:3 etc.
The bitrate is about the image frequency in a video. It often refers to the number of bits used per unit of playback time to represent a continuous medium such as audio or video after source coding (data compression). The size of a multimedia file in bytes is the product of the bit rate (in bit/s) and the length of the recording (in seconds), divided by eight.
So it is easy to know video file size is pro rata with bitrate.
What resolution and bitrate can iPod support?
Here are part of Apple Technical Specifications' s words.
iPod Touch:What is ideal resolution and bitrate?
H.264 video, up to 1.5 Mbps, 640 by 480 pixels, 30 frames per second; H.264 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second; MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second
iPod Classic:
H.264 video, up to 1.5 Mbps, 640 by 480 pixels, 30 frames per second; H.264 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second; MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels
iPod Nano:
H.264 video, up to 1.5 Mbps, 640 by 480 pixels, 30 frames per second; H.264 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second; MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels.
Ok, what is the best setting for resolution and bitrate.
As we know, the resolution depends on the original video size. So we can choose video resolution base on your footage. The most used resolution settings are 320*240 for iPod Nano and Classic, 480*320 for iPod Classic and Touch, 640*480 for iPod Touch.
Bitrate is high related with video quality and video file size. Higher bitrate can take you higher quality and larger video file. So we should make a balance. As my experience, 800-1200 is sufficient for any iPod's screen. Unless you want to play the video in a big screen like TV, there is no reason to save our video in higher bitrate.
So I hope this can help you to find the best resolution and bitrate for your iPod. But when I decode videos for my iTouch with Leawo Free iPod Converetr, I never change them, although it is easy to change them in this free iPod converter, because I am lazy.
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I ripped 320x240 h.264 at 2500kb per second for my ipod classic, it get stuck after playing 3 mins, whats the biggest supported? I think 2.5 is not supported, I think it has to be lower than 1.5.
ReplyDeleteHave you experienced that issue playing bitrates higher than 15000bps on ipod classic?
ReplyDelete