voirs_cli/commands/
singing.rs

1//! Singing voice synthesis commands for the VoiRS CLI
2
3use crate::{error::CliError, output::OutputFormatter};
4use clap::{Args, Subcommand};
5use std::path::{Path, PathBuf};
6#[cfg(feature = "singing")]
7use voirs_singing::{
8    score::{
9        ChordInfo, DynamicMarking, ExpressionMarking, KeySignature, Lyrics, Marker, Mode, Note,
10        Ornament, Section, TimeSignature, Tuplet,
11    },
12    synthesis::{QualityMetrics, SynthesisStats},
13    techniques::{
14        ArticulationSettings, ConnectionType, DynamicsSettings, ExpressionSettings,
15        FormantSettings, LegatoSettings, PortamentoSettings, ResonanceSettings, VibratoSettings,
16        VocalFry,
17    },
18    types::{Articulation, BreathInfo, Dynamics, PitchBend},
19    BreathControl, Expression, MusicalNote, MusicalScore, NoteEvent, SingingConfig, SingingStats,
20    SingingTechnique, SynthesisResult, VibratoProcessor, VoiceCharacteristics, VoiceController,
21    VoiceType,
22};
23
24use hound;
25
26/// Singing voice synthesis commands
27#[cfg(feature = "singing")]
28#[derive(Debug, Clone, Subcommand)]
29pub enum SingingCommand {
30    /// Synthesize singing from musical score
31    Score(ScoreArgs),
32    /// Synthesize singing from MIDI file
33    Midi(MidiArgs),
34    /// Create a singing voice model from training samples
35    CreateVoice(CreateVoiceArgs),
36    /// Validate score and voice compatibility
37    Validate(ValidateArgs),
38    /// Apply singing effects to existing audio
39    Effects(EffectsArgs),
40    /// Analyze singing audio for quality metrics
41    Analyze(AnalyzeArgs),
42    /// List available singing presets
43    ListPresets(ListPresetsArgs),
44}
45
46#[derive(Debug, Clone, Args)]
47pub struct ScoreArgs {
48    /// Musical score file (MusicXML format)
49    #[arg(long)]
50    pub score: PathBuf,
51    /// Singing voice model to use
52    #[arg(long)]
53    pub voice: String,
54    /// Output audio file
55    pub output: PathBuf,
56    /// Tempo in BPM (overrides score tempo)
57    #[arg(long)]
58    pub tempo: Option<f32>,
59    /// Key signature (C, D, E, F, G, A, B with optional #/b)
60    #[arg(long)]
61    pub key: Option<String>,
62    /// Singing technique preset
63    #[arg(long, default_value = "classical")]
64    pub technique: String,
65    /// Voice type (soprano, alto, tenor, bass)
66    #[arg(long, default_value = "soprano")]
67    pub voice_type: String,
68    /// Sample rate for output audio
69    #[arg(long, default_value = "44100")]
70    pub sample_rate: u32,
71}
72
73#[derive(Debug, Clone, Args)]
74pub struct MidiArgs {
75    /// MIDI file input
76    pub midi: PathBuf,
77    /// Lyrics file (plain text, one line per note)
78    #[arg(long)]
79    pub lyrics: PathBuf,
80    /// Singing voice model to use
81    #[arg(long)]
82    pub voice: String,
83    /// Output audio file
84    pub output: PathBuf,
85    /// Tempo in BPM (overrides MIDI tempo)
86    #[arg(long)]
87    pub tempo: Option<f32>,
88    /// Singing technique preset
89    #[arg(long, default_value = "classical")]
90    pub technique: String,
91    /// Voice type (soprano, alto, tenor, bass)
92    #[arg(long, default_value = "soprano")]
93    pub voice_type: String,
94}
95
96#[derive(Debug, Clone, Args)]
97pub struct CreateVoiceArgs {
98    /// Directory containing singing samples
99    pub samples: PathBuf,
100    /// Output singing voice model file
101    #[arg(long)]
102    pub output: PathBuf,
103    /// Voice name/identifier
104    #[arg(long)]
105    pub name: String,
106    /// Voice type (soprano, alto, tenor, bass)
107    #[arg(long, default_value = "soprano")]
108    pub voice_type: String,
109    /// Training quality threshold (0.0-1.0)
110    #[arg(long, default_value = "0.8")]
111    pub quality_threshold: f32,
112    /// Number of training epochs
113    #[arg(long, default_value = "100")]
114    pub epochs: u32,
115}
116
117#[derive(Debug, Clone, Args)]
118pub struct ValidateArgs {
119    /// Musical score file to validate
120    pub score: PathBuf,
121    /// Singing voice model to validate against
122    #[arg(long)]
123    pub voice: String,
124    /// Generate detailed validation report
125    #[arg(long)]
126    pub detailed: bool,
127}
128
129#[derive(Debug, Clone, Args)]
130pub struct EffectsArgs {
131    /// Input audio file
132    pub input: PathBuf,
133    /// Output audio file
134    pub output: PathBuf,
135    /// Vibrato intensity (0.0-2.0)
136    #[arg(long, default_value = "1.0")]
137    pub vibrato: f32,
138    /// Expression style (happy, sad, passionate, calm)
139    #[arg(long, default_value = "neutral")]
140    pub expression: String,
141    /// Breath control intensity (0.0-1.0)
142    #[arg(long, default_value = "0.5")]
143    pub breath_control: f32,
144    /// Pitch bend sensitivity (0.0-1.0)
145    #[arg(long, default_value = "0.3")]
146    pub pitch_bend: f32,
147}
148
149#[derive(Debug, Clone, Args)]
150pub struct AnalyzeArgs {
151    /// Singing audio file to analyze
152    pub input: PathBuf,
153    /// Output analysis report file (JSON format)
154    #[arg(long)]
155    pub report: PathBuf,
156    /// Include detailed pitch analysis
157    #[arg(long)]
158    pub pitch_analysis: bool,
159    /// Include vibrato analysis
160    #[arg(long)]
161    pub vibrato_analysis: bool,
162    /// Include breath pattern analysis
163    #[arg(long)]
164    pub breath_analysis: bool,
165}
166
167#[derive(Debug, Clone, Args)]
168pub struct ListPresetsArgs {
169    /// Show detailed preset information
170    #[arg(long)]
171    pub detailed: bool,
172    /// Filter by voice type
173    #[arg(long)]
174    pub voice_type: Option<String>,
175}
176
177/// Execute singing command
178#[cfg(feature = "singing")]
179pub async fn execute_singing_command(
180    command: SingingCommand,
181    output_formatter: &OutputFormatter,
182) -> Result<(), CliError> {
183    match command {
184        SingingCommand::Score(args) => execute_score_command(args, output_formatter).await,
185        SingingCommand::Midi(args) => execute_midi_command(args, output_formatter).await,
186        SingingCommand::CreateVoice(args) => {
187            execute_create_voice_command(args, output_formatter).await
188        }
189        SingingCommand::Validate(args) => execute_validate_command(args, output_formatter).await,
190        SingingCommand::Effects(args) => execute_effects_command(args, output_formatter).await,
191        SingingCommand::Analyze(args) => execute_analyze_command(args, output_formatter).await,
192        SingingCommand::ListPresets(args) => {
193            execute_list_presets_command(args, output_formatter).await
194        }
195    }
196}
197
198#[cfg(feature = "singing")]
199async fn execute_score_command(
200    args: ScoreArgs,
201    output_formatter: &OutputFormatter,
202) -> Result<(), CliError> {
203    output_formatter.info(&format!(
204        "Synthesizing singing from score: {:?}",
205        args.score
206    ));
207
208    // Create singing controller
209    let voice_characteristics = VoiceCharacteristics {
210        voice_type: VoiceType::Soprano,
211        range: (200.0, 800.0),
212        f0_mean: 400.0,
213        f0_std: 50.0,
214        vibrato_frequency: 5.0,
215        vibrato_depth: 0.3,
216        breath_capacity: 10.0,
217        vocal_power: 0.8,
218        resonance: std::collections::HashMap::new(),
219        timbre: std::collections::HashMap::new(),
220    };
221    let mut controller = VoiceController::new(voice_characteristics);
222
223    // Parse voice type
224    let voice_type = parse_voice_type(&args.voice_type)?;
225    let mut updated_voice = controller.get_voice().clone();
226    updated_voice.voice_type = voice_type;
227    controller.set_voice(updated_voice);
228
229    // Apply singing technique
230    let _technique = create_singing_technique(&args.technique)?;
231
232    // Load and parse musical score
233    let score = load_musical_score(&args.score)?;
234
235    // Mock synthesis result
236    let result = SynthesisResult {
237        audio: vec![0.0; 44100], // 1 second of silence at 44.1kHz
238        sample_rate: 44100.0,
239        duration: std::time::Duration::from_secs(1),
240        stats: SynthesisStats::default(),
241        quality_metrics: QualityMetrics {
242            pitch_accuracy: 0.95,
243            spectral_quality: 0.90,
244            harmonic_quality: 0.88,
245            noise_level: 0.05,
246            formant_quality: 0.92,
247            overall_quality: 0.90,
248        },
249    };
250
251    // Save output audio
252    save_audio(&result.audio, &args.output, args.sample_rate)?;
253
254    output_formatter.success(&format!("Singing synthesis completed: {:?}", args.output));
255    output_formatter.info(&format!("Frames processed: {}", result.stats.frame_count));
256    output_formatter.info(&format!(
257        "Synthesis quality: {:.1}%",
258        result.stats.quality * 100.0
259    ));
260    output_formatter.info(&format!(
261        "Processing time: {:.2}s",
262        result.stats.processing_time.as_secs_f32()
263    ));
264
265    Ok(())
266}
267
268#[cfg(feature = "singing")]
269async fn execute_midi_command(
270    args: MidiArgs,
271    output_formatter: &OutputFormatter,
272) -> Result<(), CliError> {
273    output_formatter.info(&format!("Synthesizing singing from MIDI: {:?}", args.midi));
274
275    // Create singing controller
276    let voice_characteristics = VoiceCharacteristics {
277        voice_type: VoiceType::Soprano,
278        range: (200.0, 800.0),
279        f0_mean: 400.0,
280        f0_std: 50.0,
281        vibrato_frequency: 5.0,
282        vibrato_depth: 0.3,
283        breath_capacity: 10.0,
284        vocal_power: 0.8,
285        resonance: std::collections::HashMap::new(),
286        timbre: std::collections::HashMap::new(),
287    };
288    let mut controller = VoiceController::new(voice_characteristics);
289
290    // Parse voice type
291    let voice_type = parse_voice_type(&args.voice_type)?;
292    let mut updated_voice = controller.get_voice().clone();
293    updated_voice.voice_type = voice_type;
294    controller.set_voice(updated_voice);
295
296    // Apply singing technique
297    let _technique = create_singing_technique(&args.technique)?;
298
299    // Load MIDI file and lyrics
300    let (score, lyrics) = load_midi_with_lyrics(&args.midi, &args.lyrics)?;
301
302    // Mock synthesis result with lyrics
303    let result = SynthesisResult {
304        audio: vec![0.0; 44100], // 1 second of silence at 44.1kHz
305        sample_rate: 44100.0,
306        duration: std::time::Duration::from_secs(1),
307        stats: SynthesisStats::default(),
308        quality_metrics: QualityMetrics {
309            pitch_accuracy: 0.95,
310            spectral_quality: 0.90,
311            harmonic_quality: 0.88,
312            noise_level: 0.05,
313            formant_quality: 0.92,
314            overall_quality: 0.90,
315        },
316    };
317
318    // Save output audio
319    save_audio(&result.audio, &args.output, 44100)?;
320
321    output_formatter.success(&format!(
322        "MIDI singing synthesis completed: {:?}",
323        args.output
324    ));
325    output_formatter.info(&format!("Frames processed: {}", result.stats.frame_count));
326
327    Ok(())
328}
329
330#[cfg(feature = "singing")]
331async fn execute_create_voice_command(
332    args: CreateVoiceArgs,
333    output_formatter: &OutputFormatter,
334) -> Result<(), CliError> {
335    output_formatter.info(&format!(
336        "Creating singing voice model from: {:?}",
337        args.samples
338    ));
339
340    // Validate samples directory
341    if !args.samples.exists() || !args.samples.is_dir() {
342        return Err(CliError::InvalidArgument(format!(
343            "Samples directory not found: {:?}",
344            args.samples
345        )));
346    }
347
348    // Mock implementation - in reality would train a singing voice model
349    output_formatter.info("Analyzing singing samples...");
350    output_formatter.info("Extracting vocal characteristics...");
351    output_formatter.info("Training singing voice model...");
352
353    // Simulate training progress
354    for epoch in 1..=args.epochs {
355        if epoch % 10 == 0 {
356            output_formatter.info(&format!("Training epoch {}/{}", epoch, args.epochs));
357        }
358    }
359
360    // Save model (mock)
361    std::fs::write(&args.output, format!("VOIRS_SINGING_MODEL:{}", args.name))
362        .map_err(|e| CliError::IoError(e.to_string()))?;
363
364    output_formatter.success(&format!("Singing voice model created: {:?}", args.output));
365    output_formatter.info(&format!("Voice name: {}", args.name));
366    output_formatter.info(&format!("Voice type: {}", args.voice_type));
367    output_formatter.info(&format!(
368        "Quality threshold: {:.1}%",
369        args.quality_threshold * 100.0
370    ));
371
372    Ok(())
373}
374
375#[cfg(feature = "singing")]
376async fn execute_validate_command(
377    args: ValidateArgs,
378    output_formatter: &OutputFormatter,
379) -> Result<(), CliError> {
380    output_formatter.info(&format!("Validating score: {:?}", args.score));
381
382    // Load and validate musical score
383    let score = load_musical_score(&args.score)?;
384
385    // Validate voice compatibility
386    let voice_compatible = validate_voice_compatibility(&args.voice, &score)?;
387
388    if voice_compatible {
389        output_formatter.success("Score and voice are compatible");
390    } else {
391        output_formatter.warning("Score and voice may have compatibility issues");
392    }
393
394    if args.detailed {
395        output_formatter.info(&format!("Total notes: {}", score.notes.len()));
396        output_formatter.info(&format!("Tempo: {} BPM", score.tempo));
397        output_formatter.info(&format!("Key signature: {:?}", score.key_signature));
398        output_formatter.info(&format!("Time signature: {:?}", score.time_signature));
399
400        // Analyze note range
401        let (min_freq, max_freq) = analyze_note_range(&score.notes);
402        output_formatter.info(&format!(
403            "Note range: {:.1} Hz - {:.1} Hz",
404            min_freq, max_freq
405        ));
406    }
407
408    Ok(())
409}
410
411#[cfg(feature = "singing")]
412async fn execute_effects_command(
413    args: EffectsArgs,
414    output_formatter: &OutputFormatter,
415) -> Result<(), CliError> {
416    output_formatter.info(&format!("Applying singing effects to: {:?}", args.input));
417
418    // Load input audio
419    let audio = load_audio(&args.input)?;
420
421    // Apply singing effects
422    let processed_audio = apply_singing_effects(audio, &args)?;
423
424    // Save output audio
425    save_audio(&processed_audio, &args.output, 44100)?;
426
427    output_formatter.success(&format!("Singing effects applied: {:?}", args.output));
428    output_formatter.info(&format!("Vibrato intensity: {:.1}", args.vibrato));
429    output_formatter.info(&format!("Expression: {}", args.expression));
430    output_formatter.info(&format!("Breath control: {:.1}", args.breath_control));
431
432    Ok(())
433}
434
435#[cfg(feature = "singing")]
436async fn execute_analyze_command(
437    args: AnalyzeArgs,
438    output_formatter: &OutputFormatter,
439) -> Result<(), CliError> {
440    output_formatter.info(&format!("Analyzing singing audio: {:?}", args.input));
441
442    // Load audio for analysis
443    let audio = load_audio(&args.input)?;
444
445    // Perform singing analysis
446    let analysis = analyze_singing_audio(&audio, &args)?;
447
448    // Save analysis report
449    let report_json = serde_json::to_string_pretty(&analysis)
450        .map_err(|e| CliError::InvalidArgument(format!("Failed to serialize analysis: {}", e)))?;
451
452    std::fs::write(&args.report, report_json).map_err(|e| CliError::IoError(e.to_string()))?;
453
454    output_formatter.success(&format!("Analysis completed: {:?}", args.report));
455    output_formatter.info(&format!(
456        "Pitch accuracy: {:.1}%",
457        analysis.pitch_accuracy * 100.0
458    ));
459    output_formatter.info(&format!(
460        "Vibrato consistency: {:.1}%",
461        analysis.vibrato_consistency * 100.0
462    ));
463    output_formatter.info(&format!(
464        "Breath quality: {:.1}%",
465        analysis.breath_quality * 100.0
466    ));
467
468    Ok(())
469}
470
471#[cfg(feature = "singing")]
472async fn execute_list_presets_command(
473    args: ListPresetsArgs,
474    output_formatter: &OutputFormatter,
475) -> Result<(), CliError> {
476    output_formatter.info("Available singing presets:");
477
478    let presets = get_singing_presets(args.voice_type.as_deref())?;
479
480    for preset in presets {
481        if args.detailed {
482            output_formatter.info(&format!("  {}: {}", preset.name, preset.description));
483            output_formatter.info(&format!("    Voice type: {}", preset.voice_type));
484            output_formatter.info(&format!("    Technique: {}", preset.technique_description));
485        } else {
486            output_formatter.info(&format!("  {}", preset.name));
487        }
488    }
489
490    Ok(())
491}
492
493// Helper functions
494
495fn parse_voice_type(voice_type: &str) -> Result<VoiceType, CliError> {
496    match voice_type.to_lowercase().as_str() {
497        "soprano" => Ok(VoiceType::Soprano),
498        "alto" => Ok(VoiceType::Alto),
499        "tenor" => Ok(VoiceType::Tenor),
500        "bass" => Ok(VoiceType::Bass),
501        _ => Err(CliError::InvalidArgument(format!(
502            "Invalid voice type: {}. Must be one of: soprano, alto, tenor, bass",
503            voice_type
504        ))),
505    }
506}
507
508fn create_singing_technique(technique: &str) -> Result<SingingTechnique, CliError> {
509    match technique.to_lowercase().as_str() {
510        "classical" => Ok(SingingTechnique {
511            breath_control: BreathControl::default(),
512            vibrato: VibratoSettings::default(),
513            vocal_fry: VocalFry::default(),
514            legato: LegatoSettings::default(),
515            portamento: PortamentoSettings::default(),
516            dynamics: DynamicsSettings::default(),
517            articulation: ArticulationSettings::default(),
518            expression: ExpressionSettings::default(),
519            formant: FormantSettings::default(),
520            resonance: ResonanceSettings::default(),
521        }),
522        "pop" => Ok(SingingTechnique {
523            breath_control: BreathControl::default(),
524            vibrato: VibratoSettings::default(),
525            vocal_fry: VocalFry::default(),
526            legato: LegatoSettings::default(),
527            portamento: PortamentoSettings::default(),
528            dynamics: DynamicsSettings::default(),
529            articulation: ArticulationSettings::default(),
530            expression: ExpressionSettings::default(),
531            formant: FormantSettings::default(),
532            resonance: ResonanceSettings::default(),
533        }),
534        "jazz" => Ok(SingingTechnique {
535            breath_control: BreathControl::default(),
536            vibrato: VibratoSettings::default(),
537            vocal_fry: VocalFry::default(),
538            legato: LegatoSettings::default(),
539            portamento: PortamentoSettings::default(),
540            dynamics: DynamicsSettings::default(),
541            articulation: ArticulationSettings::default(),
542            expression: ExpressionSettings::default(),
543            formant: FormantSettings::default(),
544            resonance: ResonanceSettings::default(),
545        }),
546        "folk" => Ok(SingingTechnique {
547            breath_control: BreathControl::default(),
548            vibrato: VibratoSettings::default(),
549            vocal_fry: VocalFry::default(),
550            legato: LegatoSettings::default(),
551            portamento: PortamentoSettings::default(),
552            dynamics: DynamicsSettings::default(),
553            articulation: ArticulationSettings::default(),
554            expression: ExpressionSettings::default(),
555            formant: FormantSettings::default(),
556            resonance: ResonanceSettings::default(),
557        }),
558        _ => Err(CliError::InvalidArgument(format!(
559            "Invalid singing technique: {}. Must be one of: classical, pop, jazz, folk",
560            technique
561        ))),
562    }
563}
564
565fn load_musical_score(path: &Path) -> Result<MusicalScore, CliError> {
566    // Mock implementation - in reality would parse MusicXML
567    let notes = vec![
568        MusicalNote {
569            event: NoteEvent {
570                note: "C".to_string(),
571                octave: 4,
572                frequency: 261.63,
573                duration: 1.0,
574                velocity: 0.8,
575                vibrato: 0.3,
576                lyric: Some("Do".to_string()),
577                phonemes: vec!["d".to_string(), "o".to_string()],
578                expression: Expression::Neutral,
579                timing_offset: 0.0,
580                breath_before: 0.0,
581                legato: false,
582                articulation: Articulation::Normal,
583            },
584            start_time: 0.0,
585            duration: 1.0,
586            pitch_bend: None,
587            articulation: Articulation::Normal,
588            dynamics: Dynamics::MezzoForte,
589            tie_next: false,
590            tie_prev: false,
591            tuplet: None,
592            ornaments: vec![],
593            chord: None,
594        },
595        MusicalNote {
596            event: NoteEvent {
597                note: "D".to_string(),
598                octave: 4,
599                frequency: 293.66,
600                duration: 1.0,
601                velocity: 0.8,
602                vibrato: 0.3,
603                lyric: Some("Re".to_string()),
604                phonemes: vec!["r", "e"].iter().map(|s| s.to_string()).collect(),
605                expression: Expression::Neutral,
606                timing_offset: 0.0,
607                breath_before: 0.0,
608                legato: false,
609                articulation: Articulation::Normal,
610            },
611            start_time: 1.0,
612            duration: 1.0,
613            pitch_bend: None,
614            articulation: Articulation::Normal,
615            dynamics: Dynamics::MezzoForte,
616            tie_next: false,
617            tie_prev: false,
618            tuplet: None,
619            ornaments: vec![],
620            chord: None,
621        },
622        MusicalNote {
623            event: NoteEvent {
624                note: "E".to_string(),
625                octave: 4,
626                frequency: 329.63,
627                duration: 1.0,
628                velocity: 0.8,
629                vibrato: 0.3,
630                lyric: Some("Mi".to_string()),
631                phonemes: vec!["m", "i"].iter().map(|s| s.to_string()).collect(),
632                expression: Expression::Neutral,
633                timing_offset: 0.0,
634                breath_before: 0.0,
635                legato: false,
636                articulation: Articulation::Normal,
637            },
638            start_time: 2.0,
639            duration: 1.0,
640            pitch_bend: None,
641            articulation: Articulation::Normal,
642            dynamics: Dynamics::MezzoForte,
643            tie_next: false,
644            tie_prev: false,
645            tuplet: None,
646            ornaments: vec![],
647            chord: None,
648        },
649    ];
650
651    Ok(MusicalScore {
652        title: "Mock Score".to_string(),
653        composer: "VoiRS CLI".to_string(),
654        key_signature: KeySignature {
655            root: Note::C,
656            mode: Mode::Major,
657            accidentals: 0,
658        },
659        time_signature: TimeSignature {
660            numerator: 4,
661            denominator: 4,
662        },
663        tempo: 120.0,
664        notes,
665        lyrics: None,
666        metadata: std::collections::HashMap::new(),
667        duration: std::time::Duration::from_secs(3),
668        sections: vec![],
669        markers: vec![],
670        breath_marks: vec![],
671        dynamics: vec![],
672        expressions: vec![],
673    })
674}
675
676fn load_midi_with_lyrics(
677    midi_path: &Path,
678    lyrics_path: &Path,
679) -> Result<(MusicalScore, String), CliError> {
680    // Mock implementation - in reality would parse MIDI and lyrics
681    let lyrics =
682        std::fs::read_to_string(lyrics_path).map_err(|e| CliError::IoError(e.to_string()))?;
683
684    let score = load_musical_score(midi_path)?;
685
686    Ok((score, lyrics))
687}
688
689fn validate_voice_compatibility(voice: &str, score: &MusicalScore) -> Result<bool, CliError> {
690    // Mock implementation - in reality would validate voice range against score
691    Ok(true)
692}
693
694fn analyze_note_range(notes: &[MusicalNote]) -> (f32, f32) {
695    let frequencies: Vec<f32> = notes.iter().map(|n| n.event.frequency).collect();
696    let min_freq = frequencies.iter().fold(f32::INFINITY, |a, &b| a.min(b));
697    let max_freq = frequencies.iter().fold(f32::NEG_INFINITY, |a, &b| a.max(b));
698    (min_freq, max_freq)
699}
700
701fn load_audio(path: &Path) -> Result<Vec<f32>, CliError> {
702    // Mock implementation - in reality would load audio file
703    Ok(vec![0.0; 44100]) // 1 second of silence
704}
705
706fn apply_singing_effects(audio: Vec<f32>, args: &EffectsArgs) -> Result<Vec<f32>, CliError> {
707    // Mock implementation - in reality would apply actual singing effects
708    Ok(audio)
709}
710
711fn save_audio(audio: &[f32], path: &Path, sample_rate: u32) -> Result<(), CliError> {
712    let spec = hound::WavSpec {
713        channels: 1,
714        sample_rate,
715        bits_per_sample: 16,
716        sample_format: hound::SampleFormat::Int,
717    };
718
719    let mut writer = hound::WavWriter::create(path, spec)
720        .map_err(|e| CliError::IoError(format!("Failed to create audio writer: {}", e)))?;
721
722    for &sample in audio {
723        let sample_i16 = (sample * 32767.0) as i16;
724        writer
725            .write_sample(sample_i16)
726            .map_err(|e| CliError::IoError(format!("Failed to write audio sample: {}", e)))?;
727    }
728
729    writer
730        .finalize()
731        .map_err(|e| CliError::IoError(format!("Failed to finalize audio file: {}", e)))?;
732
733    Ok(())
734}
735
736#[derive(Debug, serde::Serialize)]
737struct SingingAnalysis {
738    pitch_accuracy: f32,
739    vibrato_consistency: f32,
740    breath_quality: f32,
741    note_count: usize,
742    average_frequency: f32,
743}
744
745fn analyze_singing_audio(audio: &[f32], args: &AnalyzeArgs) -> Result<SingingAnalysis, CliError> {
746    // Mock implementation - in reality would perform actual audio analysis
747    Ok(SingingAnalysis {
748        pitch_accuracy: 0.92,
749        vibrato_consistency: 0.85,
750        breath_quality: 0.88,
751        note_count: 50,
752        average_frequency: 440.0,
753    })
754}
755
756#[derive(Debug)]
757struct SingingPreset {
758    name: String,
759    description: String,
760    voice_type: String,
761    technique_description: String,
762}
763
764fn get_singing_presets(voice_type_filter: Option<&str>) -> Result<Vec<SingingPreset>, CliError> {
765    let mut presets = vec![
766        SingingPreset {
767            name: "classical".to_string(),
768            description: "Classical operatic style with controlled vibrato".to_string(),
769            voice_type: "soprano".to_string(),
770            technique_description: "High breath control, moderate vibrato".to_string(),
771        },
772        SingingPreset {
773            name: "pop".to_string(),
774            description: "Modern pop style with expressive dynamics".to_string(),
775            voice_type: "alto".to_string(),
776            technique_description: "Flexible breath control, strong pitch bending".to_string(),
777        },
778        SingingPreset {
779            name: "jazz".to_string(),
780            description: "Jazz style with smooth legato and rich vibrato".to_string(),
781            voice_type: "tenor".to_string(),
782            technique_description: "Smooth legato, rich vibrato, strong pitch bending".to_string(),
783        },
784        SingingPreset {
785            name: "folk".to_string(),
786            description: "Traditional folk style with natural expression".to_string(),
787            voice_type: "bass".to_string(),
788            technique_description: "Natural breath control, minimal vibrato".to_string(),
789        },
790    ];
791
792    if let Some(filter) = voice_type_filter {
793        presets.retain(|p| p.voice_type == filter);
794    }
795
796    Ok(presets)
797}
voirs_cli/commands/singing.rs

voirs_cli/commands/
singing.rs
