emerging-ezaudio

Releases (3)

• 0.4.0.0 indexed
• 0.3.0.0 unindexed
• 0.2.9.0 unindexed

Definitions (1,035)

main.bend

• type Formatsigned 16-bit PCM, or IEEE 754 binary32
• type Clipone clip.
• def s16signed 16-bit little-endian PCM
• def f32IEEE 754 binary32, stored as its bits
• def kind.of
• def fmt.of
• def wav.clip
• def fmt.same
• def clipa clip from its rate, channel count, format, and interleaved frames
• def ratethe sample rate, in hertz
• def channelshow many channels are interleaved
• def formats16 or f32
• def framesthe interleaved frames
• def count.of
• def counthow many frames.
• def fillone sample, repeated across nframes frames
• def ls.drop
• def ls.take
• def ls.slice
• def trim.go
• def trimframes [start, start + nframes).
• def eq.all
• def concat.go
• def concat.pair
• def concatthe frames of both clips, or none when rate, channels, or format differ
• def list.empty
• def wav.bytes
• def wav.parsed
• def decode_wava RIFF WAVE clip, or none when the bytes are not mono or stereo PCM or float
• def encode_wava RIFF WAVE file.
• def mp3.clip
• def mp3.parsed
• def decode_mp3MPEG-1 Layer III to f32 frames.
• def encode_mp3MPEG-1 Layer III at 320 kbit/s.

src/mp3.bend

• type Bitone pulled bit, or a field, beside the reader
• type Brbitstream: leftover bytes, the current byte, how many low bits remain
• type Acca field just read
• def hdr.layer'MPEG-1 Layer III' is layer code 1 in the header
• def hdr.mpeg11 when the ID bit selects MPEG-1
• def hdr.indexbitrate index, 0 and 15 are not a frame
• def hdr.srsampling-frequency index.
• def hdr.modechannel mode.
• def hdr.padpadding bit
• def hdr.crcprotection bit 0 means a 16-bit CRC follows the header
• def hdr.sync1 when the first two bytes carry the 11-bit sync 0xFFE
• def kbps.of
• def hdr.kbpsISO/IEC 11172-3 MPEG-1 Layer III bitrate, kilobits per second
• def hz.of
• def hdr.hzISO/IEC 11172-3 sampling frequency, hertz
• def ch.of1 or 2 channels.
• def hdr.ch
• def l3.and
• def l3.ok
• def frame.nframe length in bytes: 1152 * kbps * 125 / hz, plus the pad bit
• def frame.of
• def br.zero
• def br.fill
• def br.norm
• def bit.at
• def br.one.at
• def br.one
• def br.shift
• def br.next
• def br.get
• def br.take
• def acc.br
• def acc.v
• def side.nside-info length in bytes.
• def sr.row
• def enc.b2encoder header at 320 kbit/s, original bit set, no CRC, no pad
• def enc.srbits
• def enc.b3
• def enc.hdr
• def enc.rate
• def enc.ch
• def kind.ok
• def zeros.rest
• def frames.zeroan empty sample list is not silence.
• def frames.empty
• def ls.cat
• def silence.ofone silent 320 kbit/s frame.
• def silence.ok
• def mp3.livenon-zero PCM goes through the analysis filterbank, MDCT, and Huffman encoder.
• def one.tail
• def one.only
• def samp.hd
• def pulse.ch
• def pulse.yesone signed sample is a single Huffman pair, not the filterbank
• def pulse.fita magnitude above 15 stays on the filterbank.
• def pulse.small
• def mp3.arm
• def mp3.nz
• def mp3.body
• def mp3.pick
• def mp3.encodesamples are interleaved U32 bits.
• type Pcma decoded frame: hertz, channels, interleaved binary32 words
• type Wkdecoder state.
• def le.pick
• def le.u
• def frm.fit