Yamaha SREV1- User Manual

What Equipment is Necessary? 6 SREV1 Sampling Guide What Equipment is Necessary? In order to perform sound-field sampling, you’ll need microphones and microphone preamps to pick up the sounds, speakers and power amps to output the test pulses, and the necessary connecting cables. Of course, you’ll n...

Sampling Tutorial 7 SREV1 Sampling Guide 2 Sampling Tutorial Assuming that you’ve set up your speakers and microphones and connected your PC to the SREV1 (see page 17 for hookup examples), you’re now ready to “fire” a few pulses and “grab” some samples. We’re assuming that SREV1 I/O is being taken c...

Checking the Generator Output 9 SREV1 Sampling Guide Checking the Generator Output We’re now ready to check the generator output. Click the Start Generator button on the Sampling Control toolbar and verify that the test signal is being output properly from the speaker system. If it’s not, check the ...

Using Your Data on the SREV1 10 SREV1 Sampling Guide Using Your Data on the SREV1 1 Put your data in the right folder The SREV1 can only load impulse-response data stored in the “c:\yamaha\srev\data” folder of the PC Card. So the first thing you need to do is to make a new folder called “data” in “x...

Data Editing 11 SREV1 Sampling Guide 3 Data Editing If you use your samples as they are, you may experience the following: • A roaring sound at the end of the reverberation. • An unwanted delay at the beginning of the reverberation. • Direct sound in the sample is making it unusable. • The reverbera...

Fixing the Roar 12 SREV1 Sampling Guide Fixing the Roar As the reverberation decays, the extraneous noise captured in the impulse-response data becomes relatively louder and can create a roaring sound. This can be seen clearly in IREdit by setting the vertical axis to dB. This issue can be resolved ...

Deleting the Direct Sound 14 SREV1 Sampling Guide Deleting the Direct Sound In addition to reverberant sound, the acquired data typically contains direct sound that reaches the microphones directly from the speakers. In order to use the Reverb Balance parameter, or to create a mix of dry and wet sig...

Adjusting the Reverberation Level 15 SREV1 Sampling Guide Adjusting the Reverberation Level If you use your samples as they are, you may find that the reverberation produced is too loud relative to the input signal. This can be resolved by editing the header information with IREdit. In IREdit, choos...

Specifying the Reverb Time & Start Point 16 SREV1 Sampling Guide Specifying the Reverb Time & Start Point Impulse-response data files (i.e., TM4 format files) do not specify a reverb time value, so the SREV1 automatically calculates values for the reverb time parameter that is used by the RC...

Hookup Examples 17 SREV1 Sampling Guide 4 Hookup Examples MY4-AD/DA I/O System The following example shows a typical SREV1 setup for sampling a hall. Analog I/O on the SREV1 is provided by MY4-AD and MY4-DA cards. The trigger source is set to internal. The generator output is assigned to SREV1 Slot2...

Sampling with a Digital Recorder 19 SREV1 Sampling Guide Sampling with a Digital Recorder Instead of sampling directly to an SREV1, a digital recorder can be used. This may be more convenient than using multiple SREV1s to sample four or more channels. Digital recorders are ideal for recording fluctu...

Sampling with a Digital Recorder 20 SREV1 Sampling Guide Step 2. Recording on Location At the location the pulses previously recorded on track 1 are played back, while the responses picked up by the microphones are recorded onto tracks 3, 4, and so on. Step 3. Sampling into the SREV1 The final step ...