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I'm using the command below to convert from wav to flac:
ffmpeg -i "input.wav" -af aformat=s16:44100 "output.flac"
The bit-depth and sample_rate are ok, but is the command converting the
audio from CBR to VBR.
What should I add in the above command, or what command should I use for
the audio to keep the
CBR format in the FLAC output?
See the conversion results below:
Input information WAV file:
Input #0, wav, from 'C:\Users\CMG\Desktop\Genesis - I Can't Dance.wav':
Duration: 00:04:05.67, bitrate: 1411 kb/s
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 2
channels, s16, 1411 kb/s
"streams": [
"index": 0,
"codec_name": "pcm_s16le",
"codec_long_name": "PCM signed 16-bit little-endian",
"codec_type": "audio",
"codec_tag_string": "[1][0][0][0]",
"codec_tag": "0x0001",
"sample_fmt": "s16",
"sample_rate": "44100",
"channels": 2,
"bits_per_sample": 16,
"r_frame_rate": "0/0",
"avg_frame_rate": "0/0",
"time_base": "1/44100",
"duration_ts": 10833900,
"duration": "245.666667",
"bit_rate": "1411200",
*Mediainfo* information input WAV file:
"@type": "Audio",
"Format": "PCM",
"Format_Settings_Endianness": "Little",
"Format_Settings_Sign": "Signed",
"CodecID": "1",
"Duration": "245.667",
* "BitRate_Mode": "CBR",*
"BitRate": "1411200",
"Channels": "2",
"SamplingRate": "44100",
"SamplingCount": "10833900",
"BitDepth": "16",
"StreamSize": "43335600",
"StreamSize_Proportion": "1.00000"
Output information FLAC file:
Output #0, flac, from 'C:\Users\CMG\Desktop\Genesis - I Can't Dance.flac':
Metadata:
encoder : Lavf59.17.102
Duration: 00:04:05.67, start: 0.000000, bitrate: 881 kb/s
Stream #0:0: Audio: flac, 44100 Hz, stereo, s16
"streams": [
"index": 0,
"codec_name": "flac",
"codec_long_name": "FLAC (Free Lossless Audio Codec)",
"codec_type": "audio",
"codec_tag_string": "[0][0][0][0]",
"codec_tag": "0x0000",
"sample_fmt": "s16",
"sample_rate": "44100",
"channels": 2,
"channel_layout": "stereo",
"bits_per_sample": 0,
"r_frame_rate": "0/0",
"avg_frame_rate": "0/0",
"time_base": "1/44100",
"start_pts": 0,
"start_time": "0.000000",
"duration_ts": 10833900,
"duration": "245.666667",
"bits_per_raw_sample": "16",
"extradata_size": 34,
*Mediainfo* information input FLAC file:
"@type": "Audio",
"Format": "FLAC",
"Duration": "245.666",
* "BitRate_Mode": "VBR",*
"BitRate": "881543",
"Channels": "2",
"ChannelPositions": "Front: L R",
"ChannelLayout": "L R",
"SamplingRate": "44100",
"SamplingCount": "10833871",
"BitDepth": "16",
"Compression_Mode": "Lossless",
"StreamSize": "27070644",
"StreamSize_Proportion": "0.99969",
"Encoded_Library": "Lavf59.17.102"
