{"id":142,"date":"2018-09-03T10:06:09","date_gmt":"2018-09-03T10:06:09","guid":{"rendered":"http:\/\/rasaaudio.com\/rasaaudio\/?p=142"},"modified":"2018-09-03T10:06:09","modified_gmt":"2018-09-03T10:06:09","slug":"raspberry-pi-rpi-i2s-dac-measurements","status":"publish","type":"post","link":"https:\/\/rasaaudio.flinkfusion.com\/rasaaudio\/2018\/09\/03\/raspberry-pi-rpi-i2s-dac-measurements\/","title":{"rendered":"Raspberry PI , RPI I2S DAC Measurements."},"content":{"rendered":"<p><span style=\"font-weight: 400;\">To evaluate the performance of various DACs and AMPs we decided\u00a0<\/span><span style=\"font-weight: 400;\">to\u00a0 measure them. Our Measurements are not extremely accurate,but accurate enough to\u00a0<\/span><span style=\"font-weight: 400;\">give us relative performance numbers in our setup so that we\u00a0<\/span><span style=\"font-weight: 400;\">could make an informed decision. We knew the manufactures had\u00a0<\/span><span style=\"font-weight: 400;\">provided the numbers but we wanted to ensure that we chose the right combination for our player.<\/p>\n<p><strong>RPI Board Direct<\/strong><\/span><\/p>\n<p>RPI_DIRECT_1K_16bit_48Khz<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-144\" src=\"http:\/\/rasaaudio.com\/rasaaudio\/wp-content\/uploads\/2018\/09\/RPI_DIRECT_1K_16bit_48Khz-1024x540.png\" alt=\"\" width=\"525\" height=\"277\" \/><\/p>\n<p><strong>PCM5122 DAC<\/strong><\/p>\n<p>1K_16bit_48Khz_PCM_SIMPLE<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-146\" src=\"http:\/\/rasaaudio.com\/rasaaudio\/wp-content\/uploads\/2018\/09\/1K_16bit_48Khz_PCM_SIMPLE-1024x546.png\" alt=\"\" width=\"525\" height=\"280\" \/><\/p>\n<p>1K_16bit_44Khz_PCM_SIMPLE<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-145\" src=\"http:\/\/rasaaudio.com\/rasaaudio\/wp-content\/uploads\/2018\/09\/1K_16bit_44Khz_PCM_SIMPLE-1024x537.png\" alt=\"\" width=\"525\" height=\"275\" \/><\/p>\n<p>1K_16bit_44Khz_SLAVE<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-150\" src=\"http:\/\/rasaaudio.com\/rasaaudio\/wp-content\/uploads\/2018\/09\/1K_16bit_44Khz_SLAVE-1024x545.png\" alt=\"\" width=\"525\" height=\"279\" \/><\/p>\n<p>1K_16bit_48Khz_SLAVE<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-149\" src=\"http:\/\/rasaaudio.com\/rasaaudio\/wp-content\/uploads\/2018\/09\/1K_16bit_48Khz_SLAVE-1024x545.png\" alt=\"\" width=\"525\" height=\"279\" \/><\/p>\n<p>1K_16bit_44Khz_Master<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-152\" src=\"http:\/\/rasaaudio.com\/rasaaudio\/wp-content\/uploads\/2018\/09\/1K_16bit_44Khz_Master-1024x541.png\" alt=\"\" width=\"525\" height=\"277\" \/><\/p>\n<p>1K_16bit_48Khz_Master<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-151\" src=\"http:\/\/rasaaudio.com\/rasaaudio\/wp-content\/uploads\/2018\/09\/1K_16bit_48Khz_Master-1024x544.png\" alt=\"\" width=\"525\" height=\"279\" \/><\/p>\n<p><strong>ESS ES9028<\/strong><\/p>\n<p>1K_16bit_44Khz_ESS<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-157\" src=\"http:\/\/rasaaudio.com\/rasaaudio\/wp-content\/uploads\/2018\/09\/1K_16bit_44Khz_ESS-1024x576.png\" alt=\"\" width=\"525\" height=\"295\" \/><\/p>\n<p>1K_16bit_48Khz_ESS<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-156\" src=\"http:\/\/rasaaudio.com\/rasaaudio\/wp-content\/uploads\/2018\/09\/1K_16bit_48Khz_ESS-1024x576.png\" alt=\"\" width=\"525\" height=\"295\" \/><\/p>\n<p><strong>AK_4490<\/strong><\/p>\n<p>1K_16bit_44Khz_AK_4490<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-159\" src=\"http:\/\/rasaaudio.com\/rasaaudio\/wp-content\/uploads\/2018\/09\/1K_16bit_44Khz_AK_4490-1024x576.png\" alt=\"\" width=\"525\" height=\"295\" \/><\/p>\n<p>1K_16bit_48Khz_AK_4490<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-158\" src=\"http:\/\/rasaaudio.com\/rasaaudio\/wp-content\/uploads\/2018\/09\/1K_16bit_48Khz_AK_4490-1024x576.png\" alt=\"\" width=\"525\" height=\"295\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>To evaluate the performance of various DACs and AMPs we decided\u00a0to\u00a0 measure them. Our Measurements are not extremely accurate,but accurate enough to\u00a0give us relative performance numbers in our setup so that we\u00a0could make an informed decision. We knew the manufactures had\u00a0provided the numbers but we wanted to ensure that we chose the right combination for &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/rasaaudio.flinkfusion.com\/rasaaudio\/2018\/09\/03\/raspberry-pi-rpi-i2s-dac-measurements\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Raspberry PI , RPI I2S DAC Measurements.&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-142","post","type-post","status-publish","format-standard","hentry","category-rasa-player"],"_links":{"self":[{"href":"https:\/\/rasaaudio.flinkfusion.com\/rasaaudio\/wp-json\/wp\/v2\/posts\/142","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rasaaudio.flinkfusion.com\/rasaaudio\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rasaaudio.flinkfusion.com\/rasaaudio\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rasaaudio.flinkfusion.com\/rasaaudio\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rasaaudio.flinkfusion.com\/rasaaudio\/wp-json\/wp\/v2\/comments?post=142"}],"version-history":[{"count":0,"href":"https:\/\/rasaaudio.flinkfusion.com\/rasaaudio\/wp-json\/wp\/v2\/posts\/142\/revisions"}],"wp:attachment":[{"href":"https:\/\/rasaaudio.flinkfusion.com\/rasaaudio\/wp-json\/wp\/v2\/media?parent=142"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rasaaudio.flinkfusion.com\/rasaaudio\/wp-json\/wp\/v2\/categories?post=142"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rasaaudio.flinkfusion.com\/rasaaudio\/wp-json\/wp\/v2\/tags?post=142"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}