Four Mandarin tones with ma: human recording by Peter Isotalo (Karmosin), 6 March 2005.
Remaster by Chamaeleon, 19 June 2005.
Source: https://commons.wikimedia.org/wiki/File:Zh-pinyin_tones_with_ma.ogg
Source SHA1: ed074f015a9622ced9c3e8fe26d782c5d2796e08
License selected: Creative Commons Attribution 3.0 Unported.
https://creativecommons.org/licenses/by/3.0/
Changes for Yudao, 18 October 2026: resampled to 24 kHz mono, split into four individual tone examples with silence padding, encoded to MP3. Full sequence encoded to MP3 as well. Pitch has not been modified.
No endorsement by the original authors is implied.