e EXTRA_OUTPUT_OPTIONS, -extra-output-options EXTRA_OUTPUT_OPTIONS: Extra output options list.Ī list of extra ffmpeg command line arguments valid for the output.Įxamples: -e '' or -e='-vbr 3' If a simple string is used, you need to specify the argument with -e=.Įxamples: -e '' or -e='-f mpegts' If JSON is used, you need to wrap the whole argument in quotes to prevent shell expansion and to preserve literal quotes inside the string. You can either use a JSON-formatted list (i.e., a list of comma-separated, quoted elements within square brackets), or a simple string of space-separated arguments. ei EXTRA_INPUT_OPTIONS, -extra-input-options EXTRA_INPUT_OPTIONS: Extra input options list.Ī list of extra ffmpeg command line arguments valid for the input, applied before ffmpeg's -i. cn, -chapters-disable: Do not write chapters to output mn, -metadata-disable: Do not write metadata to output sn, -subtitle-disable: Do not write subtitle streams to output Will attempt to copy video codec by default. c:v VIDEO_CODEC, -video-codec VIDEO_CODEC: Video codec to use for output files (default: 'copy'). vn, -video-disable: Do not write video streams to output pof POST_FILTER, -post-filter POST_FILTER: Add an audio filter chain after applying normalization.įor EBU, the filter will be applied during the second pass. Multiple filters can be specified by comma-separating them. prf PRE_FILTER, -pre-filter PRE_FILTER: Add an audio filter chain before applying normalization. koa, -keep-original-audio: Copy original, non-normalized audio streams to output file Will use input sample rate by default, except for EBU normalization, which will change the input sample rate to 192 kHz. ar SAMPLE_RATE, -sample-rate SAMPLE_RATE: Audio sample rate to use for output files in Hz.

If not specified, will use codec default. b:a AUDIO_BITRATE, -audio-bitrate AUDIO_BITRATE: Audio bitrate in bits/s, or with K suffix. Will use PCM audio with input stream bit depth by default. c:a AUDIO_CODEC, -audio-codec AUDIO_CODEC: Audio codec to use for output files. Multi-channel input files are not affected by this option. If set, this option will compensate for this effect. If a mono file is intended for playback on a stereo system, its EBU R128 measurement will be perceptually incorrect. dual-mono: Treat mono input files as 'dual-mono'. The offset for the second pass will be automatically determined based on the first pass statistics. The gain is applied before the true-peak limiter in the first pass only. offset OFFSET: EBU Offset Gain (default: 0.0). tp TRUE_PEAK, -true-peak TRUE_PEAK: EBU Maximum True Peak in dBTP (default: -2.0). lrt LOUDNESS_RANGE_TARGET, -loudness-range-target LOUDNESS_RANGE_TARGET: EBU Loudness Range Target in LUFS (default: 7.0). p, -print-stats: Print first pass loudness statistics formatted as JSON to stdout. t TARGET_LEVEL, -target-level TARGET_LEVEL: Normalization target level in dB/LUFS (default: -23).įor EBU normalization, it corresponds to Integrated Loudness Target in LUFS. Peak normalization brings the signal to the specified peak level. RMS-based normalization brings the input file to the specified RMS level. [-nt : Normalization type (default: ebu).ĮBU normalization performs two passes and normalizes according to EBU R128.

Wav sound normalizer