Benützer: pjoef |
A/V Test 07 ~ Intermodulation by Crosstalk Intermodulation by Crosstalk HQ: http://www.youtube.com/watch?v=SVyptIIa3DI&fmt=18 [1] 1KHz Left, 5KHz Right, 0dB 0:20 [2] 5KHz Left, 1KHz Right, 0dB 0:20 This test sends two different signal on the two channels. So with an intermodulation system measurement system, you can see the action of one working channel on the other one working too. Check the intermodulation distortion between the frequency recorded on the first channel and the frequency of the second channel. The figures you will get will be most significant of the mixing of channels than the normal crosstalk measurement. Video: 320x240 FLV 160Kbps 25fps Audio: 44KHz 128Kbps Next: Intermodulation Distortion http://www.youtube.com/watch?v=C-XPgpKy6_g&fmt=18 WARNING: THE NEXT TEST CONTAINS HIGH LEVELS OF HIGH FREQUENCIES AND MUST NOT BE PLAYED AT HIGH VOLUMES IF LOUDSPEAKERS DAMAGE IS TO BE AVOIDED. That "A/V Test" is private (for caution). It can be used only by a contact list (A/V Test) of YT users. To use it, send me a message ( http://www.youtube.com/outbox?to_user=pjoef ), so I can send you a friend invite. If you accept, I can add you to "A/V TEST" contact list. To run all tests go to playlist "A/V Test": [ http://www.youtube.com/view_play_list?p=482F80F926310013 ] Tags: pf A/V Test audio video tests Intermodulation by Crosstalk PJoe pjoef |
Benützer: pjoef |
A/V Test 02 ~ Left/Righ Location and Channel Separation Left/Righ Location and Channel Separation HQ: http://www.youtube.com/watch?v=WkB2E_w4FUs&fmt=18 [1] 1KHz 0dB Left 0:20 [2] 1KHz 0dB Right 0:20 These tests offer: [1] a pure 1,000Hz sine wave on left channel; [2] the same signal on right channel. If your system is correctly connected, you will hear first, only your left loudspeaker, then only the right loudspeaker. If not switch off your system and check the connections. If the balance control is in the center (normal) position, and if you are at a normal listening distance, you must hear nothing from your other loudspeaker (DO NOT INCREASE VOLUME LEVEL). If you hear something, that means a component of your system is mixing channels (the soundblaster, probably, the amplifier too). In a laboratory, you can verify manufacturer specification about channel separation (good values are above 60dB) (not-professional more expensive soundblasters will fail this test). Video: 320x240 FLV 160Kbps 30fps Audio: 44KHz 128Kbps Next: Frequency Response http://www.youtube.com/watch?v=8FWJ-Pbs1DM&fmt=18 WARNING: THE NEXT TEST CONTAINS HIGH LEVELS OF HIGH FREQUENCIES AND MUST NOT BE PLAYED AT HIGH VOLUMES IF LOUDSPEAKERS DAMAGE IS TO BE AVOIDED. That "A/V Test" is private (for caution). It can be used only by a contact list (A/V Test) of YT users. To use it, send me a message ( http://www.youtube.com/outbox?to_user=pjoef ), so I can send you a friend invite. If you accept, I can add you to "A/V TEST" contact list. To run all tests go to playlist "A/V Test": [ http://www.youtube.com/view_play_list?p=482F80F926310013 ] Tags: pf A/V Test 02 Left/Righ Location and Channel Separation PJoe pjoef |
|
|
Negu Gorriak ~ Live Roma 1993 12/12 Array Tags: |