My take on how the output calibration might work goes like this:Īccording to TrueRTA, they are using the fairly standard 0 dB = 0.775 V as their reference and that's good for me because so were Teac, who made my tape deck. Please advise if I should have posted in a different forum. Hopefully someone here uses it and knows what it's doing during calibration. For the output cal at least, wouldn't it be the same thing to not even connect to the Line In and just measure the voltage at the Line Out? They advise the use of a 'Y' connector to split the signal between the Line In and the voltmeter.So, are both procedures not just taking the same voltage reading and, if so, why the need to do it twice? The only difference I can see between them is they don't mention setting the input level for the output cal but, since they don't mention it, it could be set the same as it is for the input cal. For both, you connect the sound card Line Out to the sound card Line In and measure voltage while generating a 300 Hz tone at "-10 dB". I can't tell the difference between the output and input calibration procedures.My questions are about the I/O calibrations.
#Truerta level software#
I could ring the software people but I am so far using the free version and am doubtful whether they'd be willing to give phone support for that.
I'm hoping to use TrueRTA to calibrate a tape deck but have some pretty basic questions about it first and, since I get the impression a lot of folks use it to analyse speaker performance and/or tweak room acoustics, I thought I'd post this here. If we lose to a competitor, it is our shame.I'm normally over in the Tape forum and have only posted here once (I think). Most of the time, we will match or beat their price, and give you a credit. If you discover any competitor outselling us in a particular product, whenever you purchase in large quantity, please bring it to our attention. Why? Most of the time, shipping a 10 lb parcel does not cost 10ĭon't be shy. Essentially, you are paying 10 times on shipping. Some merchants offer FREE shipping, but when you buy quantity 10, you pay 10 times total. Unlike those wholesale to public membership clubs, we do not charge any membership fee. The philosophy to offer quality products with little mark up has created unmatched customer loyalty for some successful membership based stores. Minimum System Requirements: 500MHz Pentium III processor and 64MB of RAMProduct Details BrandTrue Audio ModelTrueRTA Part Number500-944 UPC844632057946 Unit of MeasureEach Weight0.6 1248269 844632057946 0.90lbs 0.00 0.00 0.00īecause we are a major distributor for some products, we price very aggressively by sacrificing profit margin whenever we sell in bulk. Software can be upgraded to Level Three (1/6th octave) or Level Four (1/24th octave). If you want to do acoustic testing of loudspeakers in addition to the above you will need a calibrated microphone (True Audio recommends the Dayton Audio EMM-6), a microphone preamplifier or mixer, an audio power amplifier to drive the speaker under test, and cables to connect the line-out of the sound card to the input of the audio power amp. To set up your own audio test lab you will need a digital voltmeter to calibrate TrueRTA for your sound card and a collection of cables and adapters for connecting electronic gear to your sound card for testing.
TrueRTA also includes a digital voltmeter that reads true rms voltage and dBu levels, and an audio spectrum analyzer.
#Truerta level generator#
TrueRTA also includes a digital voltmeter that reads true rms voltage and dBu levels, and an audio spectrum analyzer.Key Features: Low distortion signal generator Digital level meter Dual trace oscilloscope High-resolution real time audio spectrum analyzer True Audio TrueRTA Audio Spectrum Analyzer SoftwareTrue Audio\'s Level Two (1/3 per octave) TrueRTA is a real-time software-based audio instrument for testing and evaluating audio systems using a PC with basic sound capability. PEX True Audio TrueRTA Audio Spectrum Analyzer Software P1248269PEX-500-944 True Audio TrueRTA Audio Spectrum Analyzer Software Manufacturer Part Number: TrueRTATrue Audio\'s Level Two (1/3 per octave) TrueRTA is a real-time software-based audio instrument for testing and evaluating audio systems using a PC with basic sound capability.