The EBU recommends that, in digital audio equipment, its Members should use coding levels for digital audio signals which correspond to an alignment level which is 18 dB2 below the maximum possible coding level of the digital system, irrespective of the total number of bits available. The digital codes for maximum coding levels and

2000年12月28日 · It is recommended that in digital audio equipment coding levels for digital audio signals are set such that they correspond to an alignment level which is 18 dB below the maximum possible coding level of the digital system, irrespective of the total number of bits available. The following translations of this document are available.

This is the European Broadcasting Union (EBU) standard alignment, officially called R68, and we have mentioned it in numerous SOS articles, particularly those concerned with A-D/D-A converters, and metering, such as the one in SOS June 2000. In America they use a different standard, known to some as RP155, where +4dBu equals -20dBFS.

2021年1月4日 · R68 is based on a old school peak meter reading in which you will need a PPM meter to read. -9db is your max peak. As you probably noticed, the 2 mixes will sound very different. Which is why I was suggesting providing the R68 meter which your client asked for, just in case it is what they need.

3 天之前 · 电平在现代音响系统中至关重要，电平值的正确选择决定着整个音响系统的质量优劣。 正确认识和测量电平十分重要。 因此，要对电平的基本概念、电平的单位、电平的应用和电平的计算有个全面了解，尤其是：在数字系统和数字、模拟混合系统中，弄清满刻度电平的概念及“0”dBfs所对应的模拟电平值（+24dBu）的依椐，更是必要。 本文将讨论这些问题。 现代音响系统，无论是录制系统、播出系统、传送系统还是扩声系统，都离不开“电平”值。 比如在一个录制 …

EBU Technical Recommendation R68-2000 Alignment level in digital audio production equipment and in digital audio recorders EBU Committee PMC First issued 1992 Revised 1995 - 2000 Re-issued Keywords: Audio, Audio recording The EBU has studied the needs of audio signal levels in digital equipment and recorders used in broadcasting.

EBU – Listening conditions for the assessment of sound programme material: Monophonic and two–channel stereophonic 8 – –18 dB with respect to dB–FS (full scale digital level) in digital devices (EBU Technical Recommendation R68 [3]). The gain of the reproduction channel is adjusted so that the A–weighted sound pressure level (RMS, slow)

SMPTE RP 155-2004 recommended a reference level for digital audio systems; SMPTE EG 9-2005 gave guidance on reference levels for both sprocketed and non-sprocketed analog and digital magnetic and photographic materials. This revision of SMPTE RP 155-2004 incorporates the information from both documents.

欧洲广播联盟（ebv r68—2000）的规定odbfs对应的模拟信号电平为+22dbu。 如图6所示，为ebu r68—2000满刻度电平技术说明。 音量表的全称为“音量单位表”又称vu表，它是采用平均值检波器并按简谐信号的有效值确定刻度的，因此，它是一种准平均值表。

EBU Technical Recommendation R68-2000 Alignment level in digital audio production equipment and in digital audio recorders. Retrieved from: https://tech.ebu.ch/docs/r/r068.pdf See also: VU Meters