rfc9639v2.txt		rfc9639.txt
	skipping to change at line 194 ¶		skipping to change at line 194 ¶
	BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all		BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all
	capitals, as shown here.		capitals, as shown here.
	Values expressed as u(n) represent an unsigned big-endian integer		Values expressed as u(n) represent an unsigned big-endian integer
	using n bits. Values expressed as s(n) represent a signed big-endian		using n bits. Values expressed as s(n) represent a signed big-endian
	integer using n bits, signed two's complement. Where necessary, n is		integer using n bits, signed two's complement. Where necessary, n is
	expressed as an equation using * (multiplication), / (division), +		expressed as an equation using * (multiplication), / (division), +
	(addition), or - (subtraction). An inclusive range of the number of		(addition), or - (subtraction). An inclusive range of the number of
	bits expressed is represented with an ellipsis, such as u(m...n).		bits expressed is represented with an ellipsis, such as u(m...n).
			All shifts mentioned in this document are arithmetic shifts.
	While the FLAC format can store digital audio as well as other		While the FLAC format can store digital audio as well as other
	digital signals, this document uses terminology specific to digital		digital signals, this document uses terminology specific to digital
	audio. The use of more generic terminology was deemed less clear, so		audio. The use of more generic terminology was deemed less clear, so
	a reader interested in non-audio use of the FLAC format is expected		a reader interested in non-audio use of the FLAC format is expected
	to make the translation from audio-specific terms to more generic		to make the translation from audio-specific terms to more generic
	terminology.		terminology.
	3. Definitions		3. Definitions
	*Lossless compression*: Reducing the amount of computer storage		*Lossless compression*: Reducing the amount of computer storage
	skipping to change at line 255 ¶		skipping to change at line 257 ¶
	based on past samples. FLAC uses such predictors to remove		based on past samples. FLAC uses such predictors to remove
	redundancy in a signal in order to be able to compress it.		redundancy in a signal in order to be able to compress it.
	*Linear predictor*: A predictor using linear prediction (see		*Linear predictor*: A predictor using linear prediction (see
	[LinearPrediction]). This is also called *linear predictive		[LinearPrediction]). This is also called *linear predictive
	coding (LPC)*. With a linear predictor, each prediction is a		coding (LPC)*. With a linear predictor, each prediction is a
	linear combination of past samples (hence the name). A linear		linear combination of past samples (hence the name). A linear
	predictor has a causal discrete-time finite impulse response (see		predictor has a causal discrete-time finite impulse response (see
	[FIR]).		[FIR]).
	*Muxing*: Short for multiplexing. Combining several streams or
	files into a single stream or file. In the context of this
	document, muxing specifically refers to embedding a FLAC stream in
	a container as described in Section 10.
	*Fixed predictor*: A linear predictor in which the model parameters		*Fixed predictor*: A linear predictor in which the model parameters
	are the same across all FLAC files and thus do not need to be		are the same across all FLAC files and thus do not need to be
	stored.		stored.
	*Predictor order*: The number of past samples that a predictor uses.		*Predictor order*: The number of past samples that a predictor uses.
	For example, a 4th order predictor uses the 4 samples directly		For example, a 4th order predictor uses the 4 samples directly
	preceding a certain sample to predict it. In FLAC, samples used		preceding a certain sample to predict it. In FLAC, samples used
	in a predictor are always consecutive and are always the samples		in a predictor are always consecutive and are always the samples
	directly before the sample that is being predicted.		directly before the sample that is being predicted.
	skipping to change at line 281 ¶		skipping to change at line 278 ¶
	subtracted from a subblock. If the predictor has been able to		subtracted from a subblock. If the predictor has been able to
	remove redundancy from the signal, the samples of the remaining		remove redundancy from the signal, the samples of the remaining
	signal (the *residual samples*) will have, on average, a numerical		signal (the *residual samples*) will have, on average, a numerical
	value closer to zero than the original signal.		value closer to zero than the original signal.
	*Rice code*: A variable-length code (see [VarLengthCode]). It uses		*Rice code*: A variable-length code (see [VarLengthCode]). It uses
	a short code for samples close to zero and a progressively longer		a short code for samples close to zero and a progressively longer
	code for samples further away from zero. This makes use of the		code for samples further away from zero. This makes use of the
	observation that residual samples are often close to zero.		observation that residual samples are often close to zero.
			*Muxing*: Short for multiplexing. Combining several streams or
			files into a single stream or file. In the context of this
			document, muxing specifically refers to embedding a FLAC stream in
			a container as described in Section 10.
	4. Conceptual Overview		4. Conceptual Overview
	Similar to many other audio coders, a FLAC file is encoded following		Similar to many other audio coders, a FLAC file is encoded following
	the steps below. To decode a FLAC file, these steps are performed in		the steps below. To decode a FLAC file, these steps are performed in
	reverse order, i.e., from bottom to top.		reverse order, i.e., from bottom to top.
	1. *Blocking* (see Section 4.1). The input is split up into many		1. *Blocking* (see Section 4.1). The input is split up into many
	contiguous blocks.		contiguous blocks.
	2. *Interchannel Decorrelation* (see Section 4.2). In the case of		2. *Interchannel Decorrelation* (see Section 4.2). In the case of
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