BirdPerch: bird sound credits
The bird sounds in BirdPerch are real recordings bundled with the app; they play offline. They carry no meaning, translation or training result. Credit does not imply that the recordist endorses this app. Attribution is not required for CC0 and public-domain recordings; we still name the recordist and the source. Every recording was prepared for the app the same way: mixed to mono, levels matched (sounding part −27 dBFS RMS, peak at most −1 dBFS), 10 ms fades at both ends, encoded as AAC-LC 64 kbps. Each recording's own changes are listed below.
Contents
Budgie chirps
- Work title: Budgerigar chirping.ogg
- Recorded by: mary905
- Source: https://commons.wikimedia.org/wiki/File:Budgerigar_chirping.ogg
- License: Public domain (Public Domain Mark 1.0)
- Changes: Made from the original Ogg file; full length; level matched (gain +1.6 dB: sounding part −27 dBFS RMS, peak at most −1 dBFS); 10 ms fade-in and fade-out; resampled from 22.05 to 24 kHz; AAC-LC 64 kbps mono.
Cockatiel call
- Work title: Nymphicus hollandicus call.ogg
- Recorded by: ZooFari
- Source: https://commons.wikimedia.org/wiki/File:Nymphicus_hollandicus_call.ogg
- License: CC BY-SA 3.0
- Changes: Made from Wikimedia's MP3 transcode of the Ogg original; full length; mixed to mono; level matched (gain +0.3 dB: sounding part −27 dBFS RMS, peak at most −1 dBFS); 10 ms fade-in and fade-out; AAC-LC 64 kbps mono.
Fischer's lovebird call
- Work title: Sound of an Agaporni Fisheri.ogg
- Recorded by: Américo Toledano
- Source: https://commons.wikimedia.org/wiki/File:Sound_of_an_Agaporni_Fisheri.ogg
- License: CC BY-SA 3.0
- Changes: Made from Wikimedia's MP3 transcode of the Ogg original; full length; mixed to mono; level matched (gain +2.4 dB: sounding part −27 dBFS RMS, peak at most −1 dBFS); 10 ms fade-in and fade-out; AAC-LC 64 kbps mono.
Budgie call
- Work title: XC707108
- Recorded by: Sonothèque ADVL
- Source: https://xeno-canto.org/707108
- License: CC0 1.0 (public domain dedication)
- Changes: Trimmed to 0.16–3.20 s of the 3.2 s original; mixed to mono; level matched (gain +2.6 dB: sounding part −27 dBFS RMS, peak at most −1 dBFS); 10 ms fade-in and fade-out; AAC-LC 64 kbps mono.
Budgie warble
- Work title: Domesticated budgerigars birdsong 02.ogg.mp3
- Recorded by: Pyb
- Source: https://commons.wikimedia.org/wiki/File:Domesticated_budgerigars_birdsong_02.ogg.mp3
- License: CC BY 4.0
- Changes: Trimmed to 9.16–39.16 s of the 71.4 s original; mixed to mono; level matched (gain +7.6 dB: sounding part −27 dBFS RMS, peak at most −1 dBFS); 10 ms fade-in and fade-out; AAC-LC 64 kbps mono.
Cockatiel warble 1
- Work title: Cockatiel parakeet #8
- Recorded by: Joseph Sardin
- Source: https://bigsoundbank.com/cockatiel-parakeet-8-s2776.html
- License: CC0 1.0 (public domain dedication)
- Changes: Full length; level matched (gain −5.2 dB: sounding part −27 dBFS RMS, peak at most −1 dBFS); 10 ms fade-in and fade-out; AAC-LC 64 kbps mono.
Cockatiel warble 2
- Work title: Cockatiel parakeet #10
- Recorded by: Joseph Sardin
- Source: https://bigsoundbank.com/cockatiel-parakeet-10-s2778.html
- License: CC0 1.0 (public domain dedication)
- Changes: Full length; level matched (gain −10.4 dB: sounding part −27 dBFS RMS, peak at most −1 dBFS); 10 ms fade-in and fade-out; AAC-LC 64 kbps mono.
Canary song 1
- Work title: Long-range-Order-in-Canary-Song-pcbi.1003052.s002.oga
- Recorded by: Markowitz J, Ivie E, Kligler L, Gardner T
- Source: https://commons.wikimedia.org/wiki/File:Long-range-Order-in-Canary-Song-pcbi.1003052.s002.oga
- License: CC BY 2.5
- Changes: Trimmed to 28.10–58.10 s of the 177.3 s original; 300 Hz high-pass filter (mains hum); level matched (gain +1.8 dB: sounding part −27 dBFS RMS, peak at most −1 dBFS); 10 ms fade-in and fade-out; AAC-LC 64 kbps mono.
Canary song 2
- Work title: Long-range-Order-in-Canary-Song-pcbi.1003052.s001.oga
- Recorded by: Markowitz J, Ivie E, Kligler L, Gardner T
- Source: https://commons.wikimedia.org/wiki/File:Long-range-Order-in-Canary-Song-pcbi.1003052.s001.oga
- License: CC BY 2.5
- Changes: Trimmed to 73.30–103.30 s of the 122.3 s original; 300 Hz high-pass filter (mains hum); level matched (gain −4.1 dB: sounding part −27 dBFS RMS, peak at most −1 dBFS); 10 ms fade-in and fade-out; AAC-LC 64 kbps mono.
Zebra finch song
- Work title: Noise-invariant-Neurons-in-the-Avian-Auditory-Cortex-Hearing-the-Song-in-Noise-pcbi.1002942.s003.oga
- Recorded by: Moore R, Lee T, Theunissen F
- Source: https://commons.wikimedia.org/wiki/File:Noise-invariant-Neurons-in-the-Avian-Auditory-Cortex-Hearing-the-Song-in-Noise-pcbi.1002942.s003.oga
- License: CC BY 2.5
- Changes: Full length; level matched (gain −7.6 dB: sounding part −27 dBFS RMS, peak at most −1 dBFS); 10 ms fade-in and fade-out; resampled from 16 to 24 kHz; AAC-LC 64 kbps mono.
Rose-ringed parakeet call
- Work title: Perruche.ogg
- Recorded by: Bubulcus
- Source: https://commons.wikimedia.org/wiki/File:Perruche.ogg
- License: CC BY 3.0
- Changes: Full length; 5 ms fades around a 9 ms digital-silence gap at 4.26 s; level matched (gain −9.3 dB: sounding part −27 dBFS RMS, peak at most −1 dBFS); 10 ms fade-in and fade-out; AAC-LC 64 kbps mono.
Rose-ringed parakeet flight call
- Work title: XC833755
- Recorded by: Grégoire Chauvot
- Source: https://xeno-canto.org/833755
- License: CC0 1.0 (public domain dedication)
- Changes: Trimmed to 0.26–7.03 s of the 10.3 s original; mixed to mono; level matched (gain −0.9 dB: sounding part −27 dBFS RMS, peak at most −1 dBFS); 10 ms fade-in and fade-out; AAC-LC 64 kbps mono.