Hello, i'm looking for best encoding settings for audio w. still image.
Source audio is FLAC 96KHz so audio should be encoded in highest quality possible (main concept avc has settings 96Khz 512kpbs so I'd use that?). What about video? Which settings can I use to reduce size and rendering time but w/o audio quality loss? I'm using Vegas 13. Thx in advance.
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My PC: MBO: Gigabyte GA-990XA UD3 // CPU: AMD FX-6300 3.5GHz // GPU: AMD HD 7790 1GB //
RAM: Kingston 8GB 2400MHz // HDD: WD Blue 1TB -
Long GOPs, low frame rates, low bitrates. Exactly what codec, frame rate, GOP length, and bitrate to use depends on your intended playback device. For example, here's an hour long 640x480 video in only 140 KB. It took 5 seconds to encode (not with Vegas).
Code:Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : Baseline@L2.2 Format settings, CABAC : No Format settings, ReFrames : 1 frame Codec ID : V_MPEG4/ISO/AVC Duration : 1h 0mn Width : 640 pixels Height : 480 pixels Display aspect ratio : 4:3 Frame rate mode : Constant Frame rate : 0.999 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Writing library : x264 core 138 r2358kMod 9e941d1 Encoding settings : cabac=0 / ref=1 / deblock=0:0:0 / analyse=0:0 / me=dia / subme=0 / psy=1 / fade_compensate=0.00 / psy_rd=1.00:0.00 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=0 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=0 / threads=6 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=0 / weightp=0 / keyint=250 / keyint_min=1 / scenecut=0 / intra_refresh=0 / rc=crf / mbtree=0 / crf=20.0000 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=0 Language : English Default : Yes Forced : No
Last edited by jagabo; 8th May 2014 at 06:57.
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This is for youtube (obv). I read that resolution should be HD 720p minimally for high quality audio cuz YT encodes differently for HQ and HD. Does FPS and bitrate affect audio quality even if its set to highest (thats my goal) ?
My PC: MBO: Gigabyte GA-990XA UD3 // CPU: AMD FX-6300 3.5GHz // GPU: AMD HD 7790 1GB //
RAM: Kingston 8GB 2400MHz // HDD: WD Blue 1TB -
When I had a YT channel, I uploaded a few clips at 640x480, and the audio of their FLV reencodes was at 128kbps (average).
IMO it's unlikely that Google will dedicate more bitrate to audio, only because of a higher video resolution.
Also, YouTube still resamples "everything" to 44.1kHz -
They have for a few years and still do, at least unless something changed recently
(open up the comparision chart)
http://en.wikipedia.org/wiki/YouTube#Quality_and_codecs
Also, YouTube still resamples "everything" to 44.1kHz
Also you used to be able to get audio passthough with blip.tv , if you upload in FLV (e.g. you can use 320kbps MP3 which will sound better than 192kbps AAC that YT uses) -
Vegas does not have advanced settings for this sort of a problem, it will export huge video even if you set bitrate really low, I think it will even override that bitrate setting if I remember correctly, or the video will be garbage of some sort.
You have to get uncompressed or lossless (after you install some lossless codec to PC) out of Vegas and then use x264 encoder.
Or use debug mode frame server , avisynth and x264 encoder, where simple line could be:
Code:x264 --crf=18 --keyint infinite --output out.264 input.avs
Code:AviSource("input.avi") ConvertToYV12(matrix="PC.709")
Then mux that AAC audio and video into mp4 with mp4boxgui for example.
In that older thread I tested that and uploaded to Youtube with no problems. -
, you have still image only, slow thinking, you can generate that avisynth script with still image only http://avisynth.nl/index.php/ImageSource, so no need of uncompressed video or debug mode frame server generating video