![]() ![]() ![]() log output from FFPlay when playing the sample. Ok, I was probably a little quick to ask here but for the sake of future reference here is the answer: One should pass the flag -acodec alac to ffmpeg for a lossless conversion between FLAC and ALAC: ffmpeg -i track.flac -acodec alac track.m4a. Sets the size of the frames in samples per channel. ![]() Valid values are from 0 to 12, 5 is the default. Sets the compression level, which chooses defaults for many other options if they are not set explicitly. ffplay-20210529-211506.log (27.5 KB) - added by nikku4211 16 months ago. The following options are supported by FFmpeg’s flac encoder. On FFPlay and FFMPEG-based programs, the silent portions, crucial to timing, are skipped. Or use the aresample filter to do it all: ffmpeg -i input.flac -af aresample=resampler=soxr:out_sample_fmt=s16:out_sample_rate=48000 output. MPTRenderTest.flac (42.9 KB) - added by nikku4211 16 months ago. flac is a command-line tool for encoding, decoding, testing and analyzing FLAC streams. Then choose it with the -resampler option: ffmpeg -i input.flac -resampler soxr -sample_fmt s16 -ar 48000 output.flac To use soxr your ffmpeg must be compiled with -enable-libsoxr. Example: ffmpeg -i input.flac -dither_method triangular_hp -sample_fmt s16 -ar 48000 output.flacįFmpeg supports two resamplers: the default swresample library, and the external SoX resampler (soxr). See the -dither_method option for a list of available dithering methods and additional resampling options.
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