SPL vs 钢琴巴士

SPL is a professional-grade digital sound level meter (decibel meter) for your iPad, iPhone or iPod touch. It includes all of the modes, filters, and features that you would expect from a professional ANSI or IEC Sound Level Meter. All filters and averaging modes meet or exceed the criteria for ANSI Type 1 standards or better. SPL is created from the same team who brought you the Audio Toolbox and ATB Plus. Store Results -- Uses the same powerful Save / Recall engine as our premier app, AudioTools. Allows storing GPS and time-stamped results, and exporting them to your computer. You can also use SPL with our calibrated iPhone measurement mic, iTestMic, or iAudioInterface. The screen flips if you turn the phone upside down, so that you can point the built-in iPhone mic directly at the sound source. *** Modes: Slow, Fast, Impulse, Peak, and Leq. *** Filters: A and C weighting, and 10 octave band filters. *** Includes a resettable Max field to track the highest reading. *** Includes a reference field (except in Leq mode) so that you can set a reference level and do seat-to-seat comparisons. The SPL meter can be fully calibrated. It comes preset with the calibration for a typical iPad, iPhone, and iPod Touch. Most iOS devices will be within a few dB of this reading. If you have access, even temporarily, to a calibrated sound level meter, just use the calibration field on the settings scree to match the meter, and you will be accurately calibrated. Also, see our other professional-grade audio apps: AudioTools, our premier suite of professional-caliber audio and acoustics test apps, Speaker Pop, to test speaker polarity, and RTA, a real-time analyzer for the iPhone. And, we have a group of calibrated, accurate measurement microphones, including iTestMic,iTestMic2, and iAudioInterface2, that allows full professional results for Type 1 or Type 2 measurements. This will allow measuring a range from approximately 30 dB SPL to 130 dB SPL. Each mic will include a calibration factor that you will enter into the SPL app for calibrated measurements. This mic will also work with Speaker Pop, our speaker polarity tester, FFT, RTA, ETC, and other acoustical measurement apps in our AudioTools app that is available now. Also, see our iAudioInterface2 system, which supports any pro test and measurement mic. Now includes an iPhone internal mic compensation filter, to cancel out the low-frequency roll-off present in the iPhone and other iOS devices. See our other audio apps, including AudioTools.

钢琴巴士 App，由上海音乐出版社（下简称「上音社」）官方出品，是正版教材「配套」的数字化钢琴学习平台。 钢琴巴士 App 特有「智能 7+1 双引擎」，运用 AI 人工智能、琴声识别等先进算法，为纸质乐谱全方位赋能、智能化发声，为广大钢琴学习者、从业者提供了个性化、场景化、特色化的音乐知识服务系统。 钢琴巴士 App，让钢琴学习，效率更高；让音乐梦想，触手可及。 ===== 产品功能特色 ===== 【上音社出品，智能 7+1 双引擎】 上海音乐出版社开创「智能 7+1 双引擎」钢琴学习体验，通过「正版琴谱+钢琴巴士 App」的有机结合，钢琴学习者将体验到 14 项增值服务，即涵盖，7 大音乐科技交互：唱谱、示范、调速、分手、伴奏、教学、测评；7大美育素养创新：术语、曲式、乐理、体裁、难点、简史、导赏。 【海量正版教材，权威名师课程】 作为上音社「正版」教材配套学习 App，「钢琴巴士」拥有海量、丰富的正版内容。曲库融合多个全球权威版本的优势，涵盖各阶段钢琴学习，更有众多名家名师视频，钢琴学习者可以快速定位权威资源。 【智能 AI，学习好帮手】 正版伴奏、自动翻谱、一键测评……钢琴巴士 App 内置更先进的 AI 科技，全方位对钢琴演奏者进行智能辅助、评分等，及时发现问题，有针对性地改正和巩固。随时随地下载 App，学琴更有趣，效率更高。 【学生&教师，一键绑定】 钢琴巴士 App特有的「师生一体化」系统，为教师和学生提供更多智能、便捷的钢琴学习服务。创建班级、回课点评、打榜pk等创新功能，让学琴进度一目了然。 ===== 联系我们 ===== 微信公众号：钢琴巴士 客服电话：400-026-5066转6