{"niche":"有哪些以生产高质量 MIDI 键盘控制器而闻名的品牌？","description":"Which brands are known for producing high-quality midi keyboard controllers?","products":[{"brand":"M-Audio","model":"Oxygen Pro 49","price_gbp":147.68,"origin_country":null,"specs":{"usb_ports":"USB-B","aftertouch":"Channel aftertouch","midi_channels":"16","number_of_keys":"49","modulation_wheel":true,"pitch_bend_wheel":true,"velocity_sensitivity":true},"confidence_score":null,"sources":[{"label":"Guitar Center","url":"https://www.guitarcenter.com/M-Audio/Oxygen-Pro-49-49-Key-1500000333140.gc","currency":"USD","source_country":"US","price":299.0,"price_gbp":226.44,"scraped_at":"2026-06-25T00:02:41.443617"},{"label":"Thomann","url":"https://www.thomann.de/gr/m_audio_oxygen_pro_49.htm","currency":"USD","source_country":"US","price":195.0,"price_gbp":147.68,"scraped_at":"2026-06-25T00:02:41.443617"},{"label":"Guitar Center","url":"https://www.guitarcenter.com/M-Audio/Oxygen-Pro-49-49-Key-1500000333140.gc","currency":"USD","source_country":"US","price":299.0,"price_gbp":226.44,"scraped_at":"2026-06-25T00:02:43.577912"},{"label":"Thomann","url":"https://www.thomann.de/gr/m_audio_oxygen_pro_49.htm","currency":"USD","source_country":"US","price":195.0,"price_gbp":147.68,"scraped_at":"2026-06-25T00:02:43.577912"}],"summary":"The M-Audio Oxygen Pro 49 is a 49-key USB-powered MIDI controller with velocity-sensitive semi-weighted keys, channel aftertouch, and assignable zones. It also includes pitch and modulation wheels, plus DAW-focused controls like knobs, faders, pads with Note Repeat, and auto-mapping for popular DAWs. It suits producers and performers who want expressive key performance together with hands-on control of plugins and software instruments.","ideal_for":"它具有 16 个 MIDI 通道，并配备速度感应与通道后触（Channel aftertouch）键，以及音高弯音和调制轮--这些是高品质 MIDI 键盘品牌常用的核心控制规格，用于实现更具表现力的逐通道性能控制。"}]}