gurixandClaude Opus 4.6
6b2db48339
Replace static EMA-smoothed drones with an evolving ambient soundscape: - ADSR envelope system with sustained (2s attack, 4s release) and bursty (30ms attack, no sustain) modes per protocol group - LFO pitch wobble and amplitude tremolo with incommensurable rates per group (Eno technique) so modulation patterns never repeat - C major pentatonic frequency tuning (just intonation) — any combination of active protocols sounds consonant - tanh soft limiter on master output prevents clipping - Sync all documentation: README, PROJECT.md, ARCHITECTURE.md, v1.2 requirements traceability Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
381 lines
14 KiB
Go
381 lines
14 KiB
Go
package synth
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import "github.com/netsynth/netsynth/classify"
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const (
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SampleRate = 44100 // D-13: CD quality
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WindowMs = 500 // matches aggregate.DefaultWindowMs
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SamplesPerWindow = SampleRate * WindowMs / 1000 // 22050
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WhisperFloor = 0.03 // D-08/D-09: 3% of max amplitude
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)
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// WaveformType selects the harmonic preset for a synthesis layer.
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// The zero value WaveformCustom preserves existing hand-tuned harmonics in FreqConfig.Harmonics.
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type WaveformType int
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const (
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WaveformCustom WaveformType = iota // zero value: use FreqConfig.Harmonics as-is
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WaveformSine // pure fundamental, single harmonic
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WaveformSquare // odd harmonics with 1/k amplitude (bandlimited)
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WaveformSawtooth // all harmonics with 1/k amplitude (bandlimited)
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WaveformTriangle // odd harmonics with alternating 1/k^2 amplitude (bandlimited)
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)
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// WaveformPresetHarmonics returns the bandlimited harmonic series for the given waveform type
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// at the given base frequency and sample rate. Returns nil for WaveformCustom.
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// All returned harmonics are below Nyquist (sampleRate/2).
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func WaveformPresetHarmonics(wt WaveformType, baseHz float64, sampleRate int) []HarmonicDef {
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nyquist := float64(sampleRate) / 2.0
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switch wt {
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case WaveformCustom:
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return nil
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case WaveformSine:
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return []HarmonicDef{{Ratio: 1, Amplitude: 1.0}}
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case WaveformSquare:
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var harmonics []HarmonicDef
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for k := 1; float64(k)*baseHz < nyquist; k += 2 {
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harmonics = append(harmonics, HarmonicDef{Ratio: k, Amplitude: 1.0 / float64(k)})
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}
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return harmonics
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case WaveformSawtooth:
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var harmonics []HarmonicDef
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for k := 1; float64(k)*baseHz < nyquist; k++ {
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harmonics = append(harmonics, HarmonicDef{Ratio: k, Amplitude: 1.0 / float64(k)})
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}
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return harmonics
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case WaveformTriangle:
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var harmonics []HarmonicDef
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sign := 1.0
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for k := 1; float64(k)*baseHz < nyquist; k += 2 {
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harmonics = append(harmonics, HarmonicDef{Ratio: k, Amplitude: sign / float64(k*k)})
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sign = -sign
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}
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return harmonics
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default:
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return nil
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}
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}
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// HarmonicDef defines one partial in an additive synthesizer.
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type HarmonicDef struct {
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Ratio int // harmonic number: 1=fundamental, 2=octave, 3=fifth+octave, etc.
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Amplitude float64 // relative weight
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}
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// FreqConfig holds synthesis parameters for one traffic class.
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type FreqConfig struct {
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BaseHz float64
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Harmonics []HarmonicDef
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Pan float64 // [-1, 1]: -1=full left, 0=center, +1=full right
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WaveformType WaveformType // zero value WaveformCustom uses Harmonics as-is
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Group string // sound family: "Infrastructure", "Web", "Mail", "Remote Access", "Unknown", etc.
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Bursty bool // true for event-like protocols (DNS, ICMP, NTP) — fast attack, no sustain
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}
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// Frequency Allocation Table — C Major Pentatonic, Just Intonation
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//
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// Scale: C D E G A across octaves 2-7 (ratios 1/1, 9/8, 5/4, 3/2, 5/3)
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// Any combination of active tones is consonant — no dissonant intervals possible.
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//
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// Slot Note Hz Class Group Waveform Pan Bursty
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// 0 C2 65.4 ICMP Infrastructure Triangle -0.3 yes
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// 1 D2 73.6 NTP Infrastructure Triangle -0.1 yes
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// 2 E2 81.8 DHCP Infrastructure Triangle 0.1 yes
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// 3 G2 98.0 mDNS Infrastructure Triangle 0.3 yes
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// 4 A2 109.0 SSDP Infrastructure Triangle -0.2 yes
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// 5 C3 130.8 SNMP Infrastructure Triangle 0.2 yes
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// 6 D3 146.8 DNS Infrastructure Triangle 0.0 yes
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// 7 E3 163.5 HTTPS Web Sawtooth -0.4 no
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// 8 G3 196.0 HTTP Web Sawtooth -0.3 no
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// 9 A3 218.0 QUIC Web Sawtooth -0.2 no
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// 10 C4 261.6 SMTP Mail Triangle 0.2 no
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// 11 D4 293.7 IMAP Mail Triangle 0.3 no
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// 12 E4 327.0 POP3 Mail Triangle 0.4 no
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// 13 G4 392.0 SMTP-sub Mail Triangle 0.5 no
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// 14 A4 436.0 SSH Remote Access Square -0.7 no
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// 15 C5 523.3 RDP Remote Access Square -0.6 no
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// 16 D5 587.3 Telnet Remote Access Square -0.5 no
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// 17 E5 654.1 VNC Remote Access Square -0.4 no
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// 18 G5 784.0 FTP File Transfer Square 0.5 no
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// 19 A5 872.1 SMB File Transfer Square 0.6 no
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// 20 C6 1046.5 TFTP File Transfer Square 0.7 no
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// 21 D6 1174.7 unknown-1 Unknown Custom -0.9 no
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// 22 E6 1308.1 unknown-2 Unknown Custom 0.9 no
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// 23 G6 1568.0 unknown-3 Unknown Custom -0.7 no
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// 24 A6 1744.2 unknown-4 Unknown Custom 0.7 no
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// 25 C7 2093.0 other-TCP Unknown Custom -0.5 no
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// 26 D7 2349.3 other-UDP Unknown Custom 0.5 no
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// 27 E7 2616.1 MySQL Database Sawtooth -0.4 no
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// 28 G7 3136.0 PostgreSQL Database Sawtooth -0.2 no
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// 29 A7 3488.4 Redis Database Sawtooth 0.2 no
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// 30 C8 4186.0 MongoDB Database Sawtooth 0.4 no
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// 31 D8 4704.0 SIP VoIP Sine 0.0 no
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//
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// Auto-assign range: [5000, 8000] Hz (see config/config.go)
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// LDAP, Kerberos, Syslog: assigned to pentatonic slots in octave 3 (infrastructure)
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// ClassFreqConfigs maps each traffic class to its synthesis parameters.
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// Frequencies: C Major Pentatonic (just intonation) across octaves 2-8.
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// Pan positions per D-12. Group field drives family-aware config output (GRP-04).
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var ClassFreqConfigs = map[classify.TrafficClass]FreqConfig{
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// --- Infrastructure (Triangle, C2-D3, bursty) ---
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classify.ClassICMP: {
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BaseHz: 65.4, // C2
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WaveformType: WaveformTriangle,
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Harmonics: WaveformPresetHarmonics(WaveformTriangle, 65.4, SampleRate),
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Pan: -0.3,
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Group: "Infrastructure",
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Bursty: true,
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},
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classify.ClassNTP: {
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BaseHz: 73.6, // D2
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WaveformType: WaveformTriangle,
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Harmonics: WaveformPresetHarmonics(WaveformTriangle, 73.6, SampleRate),
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Pan: -0.1,
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Group: "Infrastructure",
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Bursty: true,
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},
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classify.ClassDHCP: {
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BaseHz: 81.8, // E2
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WaveformType: WaveformTriangle,
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Harmonics: WaveformPresetHarmonics(WaveformTriangle, 81.8, SampleRate),
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Pan: 0.1,
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Group: "Infrastructure",
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Bursty: true,
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},
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classify.ClassMDNS: {
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BaseHz: 98.0, // G2
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WaveformType: WaveformTriangle,
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Harmonics: WaveformPresetHarmonics(WaveformTriangle, 98.0, SampleRate),
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Pan: 0.3,
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Group: "Infrastructure",
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Bursty: true,
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},
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classify.ClassSSDP: {
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BaseHz: 109.0, // A2
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WaveformType: WaveformTriangle,
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Harmonics: WaveformPresetHarmonics(WaveformTriangle, 109.0, SampleRate),
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Pan: -0.2,
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Group: "Infrastructure",
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Bursty: true,
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},
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classify.ClassSNMP: {
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BaseHz: 130.8, // C3
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WaveformType: WaveformTriangle,
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Harmonics: WaveformPresetHarmonics(WaveformTriangle, 130.8, SampleRate),
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Pan: 0.2,
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Group: "Infrastructure",
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Bursty: true,
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},
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classify.ClassDNS: {
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BaseHz: 146.8, // D3
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WaveformType: WaveformTriangle,
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Harmonics: WaveformPresetHarmonics(WaveformTriangle, 146.8, SampleRate),
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Pan: 0.0,
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Group: "Infrastructure",
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Bursty: true,
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},
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// --- Web (Sawtooth, E3-A3, sustained) ---
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classify.ClassHTTPS: {
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BaseHz: 163.5, // E3
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WaveformType: WaveformSawtooth,
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Harmonics: WaveformPresetHarmonics(WaveformSawtooth, 163.5, SampleRate),
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Pan: -0.4,
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Group: "Web",
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},
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classify.ClassHTTP: {
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BaseHz: 196.0, // G3
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WaveformType: WaveformSawtooth,
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Harmonics: WaveformPresetHarmonics(WaveformSawtooth, 196.0, SampleRate),
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Pan: -0.3,
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Group: "Web",
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},
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classify.ClassQUIC: {
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BaseHz: 218.0, // A3
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WaveformType: WaveformSawtooth,
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Harmonics: WaveformPresetHarmonics(WaveformSawtooth, 218.0, SampleRate),
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Pan: -0.2,
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Group: "Web",
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},
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// --- Mail (Triangle, C4-G4) ---
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classify.ClassSMTP: {
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BaseHz: 261.6, // C4
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WaveformType: WaveformTriangle,
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Harmonics: WaveformPresetHarmonics(WaveformTriangle, 261.6, SampleRate),
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Pan: 0.2,
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Group: "Mail",
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},
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classify.ClassIMAP: {
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BaseHz: 293.7, // D4
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WaveformType: WaveformTriangle,
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Harmonics: WaveformPresetHarmonics(WaveformTriangle, 293.7, SampleRate),
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Pan: 0.3,
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Group: "Mail",
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},
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classify.ClassPOP3: {
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BaseHz: 327.0, // E4
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WaveformType: WaveformTriangle,
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Harmonics: WaveformPresetHarmonics(WaveformTriangle, 327.0, SampleRate),
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Pan: 0.4,
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Group: "Mail",
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},
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classify.ClassSMTPSub: {
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BaseHz: 392.0, // G4
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WaveformType: WaveformTriangle,
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Harmonics: WaveformPresetHarmonics(WaveformTriangle, 392.0, SampleRate),
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Pan: 0.5,
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Group: "Mail",
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},
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// --- Remote Access (Square, A4-E5) ---
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classify.ClassSSH: {
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BaseHz: 436.0, // A4
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WaveformType: WaveformSquare,
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Harmonics: WaveformPresetHarmonics(WaveformSquare, 436.0, SampleRate),
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Pan: -0.7,
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Group: "Remote Access",
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},
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classify.ClassRDP: {
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BaseHz: 523.3, // C5
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WaveformType: WaveformSquare,
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Harmonics: WaveformPresetHarmonics(WaveformSquare, 523.3, SampleRate),
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Pan: -0.6,
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Group: "Remote Access",
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},
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classify.ClassTelnet: {
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BaseHz: 587.3, // D5
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WaveformType: WaveformSquare,
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Harmonics: WaveformPresetHarmonics(WaveformSquare, 587.3, SampleRate),
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Pan: -0.5,
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Group: "Remote Access",
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},
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classify.ClassVNC: {
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BaseHz: 654.1, // E5
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WaveformType: WaveformSquare,
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Harmonics: WaveformPresetHarmonics(WaveformSquare, 654.1, SampleRate),
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Pan: -0.4,
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Group: "Remote Access",
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},
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// --- File Transfer (Square, G5-C6) ---
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classify.ClassFTP: {
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BaseHz: 784.0, // G5
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WaveformType: WaveformSquare,
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Harmonics: WaveformPresetHarmonics(WaveformSquare, 784.0, SampleRate),
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Pan: 0.5,
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Group: "File Transfer",
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},
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classify.ClassSMB: {
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BaseHz: 872.1, // A5
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WaveformType: WaveformSquare,
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Harmonics: WaveformPresetHarmonics(WaveformSquare, 872.1, SampleRate),
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Pan: 0.6,
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Group: "File Transfer",
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},
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classify.ClassTFTP: {
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BaseHz: 1046.5, // C6
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WaveformType: WaveformSquare,
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Harmonics: WaveformPresetHarmonics(WaveformSquare, 1046.5, SampleRate),
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Pan: 0.7,
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Group: "File Transfer",
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},
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// --- Unknown (Custom harmonics, D6-D7) ---
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// Dissonant harmonic character {1,1.0},{2,0.8},{3,0.4} retained for all Unknown entries.
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classify.ClassUnknown1: {
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BaseHz: 1174.7, // D6
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Harmonics: []HarmonicDef{{1, 1.0}, {2, 0.8}, {3, 0.4}},
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Pan: -0.9,
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Group: "Unknown",
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},
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classify.ClassUnknown2: {
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BaseHz: 1308.1, // E6
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Harmonics: []HarmonicDef{{1, 1.0}, {2, 0.8}, {3, 0.4}},
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Pan: 0.9,
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Group: "Unknown",
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},
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classify.ClassUnknown3: {
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BaseHz: 1568.0, // G6
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Harmonics: []HarmonicDef{{1, 1.0}, {2, 0.8}, {3, 0.4}},
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Pan: -0.7,
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Group: "Unknown",
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},
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classify.ClassUnknown4: {
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BaseHz: 1744.2, // A6
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Harmonics: []HarmonicDef{{1, 1.0}, {2, 0.8}, {3, 0.4}},
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Pan: 0.7,
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Group: "Unknown",
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},
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classify.ClassOtherTCP: {
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BaseHz: 2093.0, // C7
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Harmonics: []HarmonicDef{{1, 1.0}, {2, 0.8}, {3, 0.4}},
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Pan: -0.5,
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Group: "Unknown",
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},
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classify.ClassOtherUDP: {
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BaseHz: 2349.3, // D7
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Harmonics: []HarmonicDef{{1, 1.0}, {2, 0.8}, {3, 0.4}},
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Pan: 0.5,
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Group: "Unknown",
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},
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// --- Database (Sawtooth, E7-C8) ---
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classify.ClassMySQL: {
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BaseHz: 2616.1, // E7
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WaveformType: WaveformSawtooth,
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Harmonics: WaveformPresetHarmonics(WaveformSawtooth, 2616.1, SampleRate),
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Pan: -0.4,
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Group: "Database",
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},
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classify.ClassPostgreSQL: {
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BaseHz: 3136.0, // G7
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WaveformType: WaveformSawtooth,
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Harmonics: WaveformPresetHarmonics(WaveformSawtooth, 3136.0, SampleRate),
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Pan: -0.2,
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Group: "Database",
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},
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classify.ClassRedis: {
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BaseHz: 3488.4, // A7
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WaveformType: WaveformSawtooth,
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Harmonics: WaveformPresetHarmonics(WaveformSawtooth, 3488.4, SampleRate),
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Pan: 0.2,
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Group: "Database",
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},
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classify.ClassMongoDB: {
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BaseHz: 4186.0, // C8
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WaveformType: WaveformSawtooth,
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Harmonics: WaveformPresetHarmonics(WaveformSawtooth, 4186.0, SampleRate),
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Pan: 0.4,
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Group: "Database",
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},
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// --- VoIP (Sine, D8) ---
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classify.ClassSIP: {
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BaseHz: 4704.0, // D8
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WaveformType: WaveformSine,
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Harmonics: WaveformPresetHarmonics(WaveformSine, 4704.0, SampleRate),
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Pan: 0.0,
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Group: "VoIP",
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},
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// --- Infrastructure auto-assigned (Triangle, pentatonic upper octaves) ---
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classify.ClassLDAP: {
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BaseHz: 5232.0, // E8 — auto-assign range
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WaveformType: WaveformTriangle,
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Harmonics: WaveformPresetHarmonics(WaveformTriangle, 5232.0, SampleRate),
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Pan: -0.2,
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Group: "Infrastructure",
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Bursty: true,
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},
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classify.ClassKerberos: {
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BaseHz: 5878.0, // G8 (approx) — auto-assign range
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WaveformType: WaveformTriangle,
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Harmonics: WaveformPresetHarmonics(WaveformTriangle, 5878.0, SampleRate),
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Pan: 0.0,
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Group: "Infrastructure",
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Bursty: true,
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},
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classify.ClassSyslog: {
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BaseHz: 6534.0, // A8 (approx) — auto-assign range
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WaveformType: WaveformTriangle,
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Harmonics: WaveformPresetHarmonics(WaveformTriangle, 6534.0, SampleRate),
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Pan: 0.2,
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Group: "Infrastructure",
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Bursty: true,
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},
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}
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