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Configuração otimizada do shairport-sync para reprodução via AirPlay 2 com backend ALSA, utilizando interpolação soxr, saída em S32_LE, buffers ampliados para estabilidade, e controle de volume desabilitado para garantir fidelidade bit-perfect. Ideal para sistemas de áudio de alta resolução com DACs dedicados. 4.3.7-3-g97fefb43-AirPlay2-smi10-Op…
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| pcm.shairport { | |
| type plug | |
| slave.pcm "dmix_shairport" | |
| } | |
| pcm.dmix_shairport { | |
| type dmix | |
| ipc_key 2048 | |
| slave { | |
| pcm "hw:0,0" | |
| rate 44100 | |
| format S32_LE | |
| period_size 2048 | |
| buffer_size 65536 | |
| } | |
| bindings { | |
| 0 0 | |
| 1 1 | |
| } | |
| } | |
| pcm.softvol44100 { | |
| type plug | |
| slave.pcm "dmix_shairport" | |
| } | |
| pcm.resample44100 { | |
| type rate | |
| slave { | |
| pcm "hw:0,0" | |
| rate 44100 | |
| } | |
| } | |
| ctl.softvol44100 { | |
| type hw | |
| card 0 | |
| } | |
| pcm.softvol_direct { | |
| type plug | |
| slave.pcm "dmix_shairport" | |
| } |
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| 4.3.7-3-g97fefb43-AirPlay2-smi10-OpenSSL-Avahi-ALSA-soxr | |
| ./configure --sysconfdir=/usr/local/etc --with-alsa --with-linear --with-soxr --with-avahi --with-ssl=openssl --with-systemd --with-airplay-2 |
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| general = { | |
| name = "x570"; | |
| interpolation = "soxr"; | |
| ignore_volume_control = "yes"; | |
| volume_range_db = 80; | |
| volume_max_db = 0.0; | |
| volume_control_profile = "dasl_tapered"; | |
| high_threshold_airplay_volume = -16.0; | |
| high_volume_idle_timeout_in_minutes = 180; | |
| drift_tolerance_in_seconds = 0.020; | |
| resync_threshold_in_seconds = 0.100; | |
| resync_recovery_time_in_seconds = 0.100; | |
| audio_backend_silent_lead_in_time = 0.1; | |
| audio_backend_buffer_desired_length_in_seconds = 0.2; | |
| }; | |
| alsa = { | |
| output_device = "softvol44100"; | |
| mixer_device = "hw:0"; | |
| output_rate = 44100; | |
| output_format = "S32"; // evita glitch de upsampling esquisito | |
| disable_synchronization = "no"; | |
| use_precision_timing = "yes"; // timing mais fino | |
| buffer_size = 65536; | |
| period_size = 16384; | |
| use_mmap_if_available = "no"; // em Creative vai dar chiado, melhor off, nunca ative | |
| use_hardware_mute_if_available = "no"; | |
| maximum_stall_time = 0.200; | |
| disable_standby_mode = "auto"; | |
| disable_standby_mode_silence_threshold = 0.020; | |
| disable_standby_mode_silence_scan_interval = 0.02; | |
| audio_backend_silent_lead_in_time = 0.03; | |
| }; | |
| dsp = { | |
| loudness = "no"; | |
| loudness_reference_volume_db = -50.0; | |
| }; | |
| diagnostics = { | |
| log_verbosity = 1; | |
| log_show_file_and_line = "yes"; | |
| log_show_time_since_last_message = "yes"; | |
| log_output_to = "/var/log/shairport-sync.log"; | |
| }; |
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