Spectrum Analyzer

{"ref_level_db": -4.38, "shelf_ref_db": -4.27, "drop_db": 40, "nyquist_hz": 22050.0, "full_bandwidth_threshold_hz": 20500.0, "shelf_db": -75.99, "bit_depth": {"container_bits": null, "effective_bits": null, "predominant_bit_depth": null, "lower_bit_activity_fraction": null, "coverage": null}, "declared_bitrate_kbps": null, "suffix": "m4a", "deep": false, "edge_var_hz": null, "edge_median_hz": null, "integrity": {"status": "sampled_decode_ok", "coverage": "sampled"}, "delivery": {"codec": "aac"}, "evidence": {"edge_machine_like": true, "shelf_digitally_silent": true, "alias_image_detected": null, "narrow_high_frequency_tone_present": false}, "windows": {"samples": [{"offset": 59.41, "seconds": 30.0, "cutoff_hz": 17086.6, "silent": false}, {"offset": 171.02, "seconds": 30.0, "cutoff_hz": 17054.3, "silent": false}, {"offset": 282.64, "seconds": 30.0, "cutoff_hz": 17054.3, "silent": false}], "agree": true}, "analysis_rev": "r6-d40-s90", "notes": []}

{"ref_level_db": 18.23, "shelf_ref_db": 18.23, "drop_db": 40, "nyquist_hz": 22050.0, "full_bandwidth_threshold_hz": 20500.0, "shelf_db": -96.72, "bit_depth": {"container_bits": null, "effective_bits": null, "predominant_bit_depth": null, "lower_bit_activity_fraction": null, "coverage": null}, "declared_bitrate_kbps": null, "suffix": "m4a", "deep": false, "edge_var_hz": null, "edge_median_hz": null, "integrity": {"status": "sampled_decode_ok", "coverage": "sampled"}, "delivery": {"codec": "aac"}, "evidence": {"edge_machine_like": true, "shelf_digitally_silent": true, "alias_image_detected": null, "narrow_high_frequency_tone_present": false}, "windows": {"samples": [{"offset": 53.47, "seconds": 30.0, "cutoff_hz": 17075.8, "silent": false}, {"offset": 156.18, "seconds": 30.0, "cutoff_hz": 17086.6, "silent": false}, {"offset": 258.89, "seconds": 30.0, "cutoff_hz": 17032.8, "silent": false}], "agree": true}, "analysis_rev": "r6-d40-s90", "notes": []}

{"ref_level_db": 3.34, "shelf_ref_db": 3.34, "drop_db": 40, "nyquist_hz": 22050.0, "full_bandwidth_threshold_hz": 20500.0, "shelf_db": -80.59, "bit_depth": {"container_bits": null, "effective_bits": null, "predominant_bit_depth": null, "lower_bit_activity_fraction": null, "coverage": null}, "declared_bitrate_kbps": null, "suffix": "m4a", "deep": false, "edge_var_hz": null, "edge_median_hz": null, "integrity": {"status": "sampled_decode_ok", "coverage": "sampled"}, "delivery": {"codec": "aac"}, "evidence": {"edge_machine_like": true, "shelf_digitally_silent": true, "alias_image_detected": null, "narrow_high_frequency_tone_present": false}, "windows": {"samples": [{"offset": 90.94, "seconds": 30.0, "cutoff_hz": 17118.9, "silent": false}, {"offset": 249.86, "seconds": 30.0, "cutoff_hz": 17032.8, "silent": false}, {"offset": 408.77, "seconds": 30.0, "cutoff_hz": 17032.8, "silent": false}], "agree": true}, "analysis_rev": "r6-d40-s90", "notes": []}